DTC P0A78-113: Drive Motor "A" Inverter Performance [11/2014 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   P0A78-113 is set before any of the DTCs in the table below are set.	A
   Any of the DTCs in the table 1 below are set before P0A78-113 is set.	B
   Any of the DTCs in the table 2 below are set before P0A78-113 is set.	C

   TABLE 1
   
   

   DTC No.	Relevant Diagnosis
   P0ADB-227	Hybrid Battery Positive Contactor Control Circuit Low
   P0ADC-226	Hybrid Battery Positive Contactor Control Circuit High
   P0ADF-229	Hybrid Battery Negative Contactor Control Circuit Low
   P0AE0-228	Hybrid Battery Negative Contactor Control Circuit High
   P3004-131, 803	Power Cable Malfunction

   TABLE 2
   
   

   DTC No.	Relevant Diagnosis
   P0A7F-123	Hybrid Battery Pack Deterioration
   P0A80-123	Replace Hybrid Battery Pack
   P0A9C-123	Hybrid Battery Temperature Sensor "A" Range / Performance
   P0A9D-123	Hybrid Battery Temperature Sensor "A" Circuit Low
   P0A9E-123	Hybrid Battery Temperature Sensor "A" Circuit High
   P0ABF-123	Hybrid Battery Pack Current Sensor Circuit
   P0AC0-123	Hybrid Battery Pack Current Sensor Circuit Range/Performance
   P0AC1-123	Hybrid Battery Pack Current Sensor Circuit Low
   P0AC2-123	Hybrid Battery Pack Current Sensor Circuit High
   P0AC6-123	Hybrid Battery Temperature Sensor "B" Range/Performance
   P0AC7-123	Hybrid Battery Temperature Sensor "B" Circuit Low
   P0AC8-123	Hybrid Battery Temperature Sensor "B" Circuit High
   P0ACB-123	Hybrid Battery Temperature Sensor "C" Range / Performance
   P0ACC-123	Hybrid Battery Temperature Sensor "C" Circuit Low
   P0ACD-123	Hybrid Battery Temperature Sensor "C" Circuit High
   P0AFC-123	Hybrid Battery Pack Sensor Module
   P3011-123, P3012-123, P3013-123, P3014-123, P3015-123, P3016-123, P3017-123, P3018-123, P3019-123, P3020-123, P3021-123, P3022-123, P3023-123, P3024-123	Battery Block # Becomes Weak
   P3065-123	Hybrid Battery Temperature Sensor Range/Performance Stuck "A"
   U029A-123	Lost Communication with Hybrid Battery Pack Sensor Module

   HINT: 

   • Refer to the Freeze Frame data to determine the order in which the DTCs were set.
   • P0A78-113 may be set due to a malfunction which also causes DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
5. Turn the power switch off.

B → See step   32 

C → See step   35 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   P0A78-202 is not output.	A
   P0A78-202 is also output.	B

   NOTE:

   • If P0A78-202 is output, troubleshoot it first. After completing the troubleshooting for P0A78-202, return to perform troubleshooting for this DTC.
   • Parts repaired or replaced during troubleshooting for P0A78-202 do not need to be re-inspected in this diagnosis procedure.
5. Turn the power switch off.

B → See step   30 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   HINT: 

   • If P0A78-202 was not output in step 2 of this diagnosis procedure, check Table 1 below.
   • If P0A78-202 was output in step 2 of this diagnosis procedure, repair that DTC first, then check Table 2 below.

   Result

   Result	Proceed to
   P0A78-113 only is output.	A
   Any of the following DTCs are also output.	B

   TABLE 1
   
   

   DTC No.	Relevant Diagnosis
   P06B0-163	Sensor Power Supply "A" Circuit/Open
   P06D6-511	Sensor Reference Voltage "F" Circuit/Open
   P06E6-164	Sensor Power Supply "C" Circuit/Open
   P0A1A-151, 166, 517, 658, 791, 809	Generator Control Module
   P0A1B-198, 503, 505, 547, 554, 786, 794, 806	Drive Motor "A" Control Module
   P0A1D (all INF codes)*1	Hybrid Powertrain Control Module
   P0A3F-243	Drive Motor "A" Position Sensor Circuit
   P0A40-500, 504, 506, 549, 556, 808	Drive Motor "A" Position Sensor Circuit Range/Performance
   P0A41-245	Drive Motor "A" Position Sensor Circuit Low
   P0A4B-253	Generator Position Sensor Circuit
   P0A4C-513, 518, 811	Generator Position Sensor Circuit Range/Performance
   P0A4D-255	Generator Position Sensor Circuit Low
   P0A78-279, 287, 548, 555, 807	Drive Motor "A" Inverter Performance
   P0A7A-325, 810	Generator Inverter Performance
   P0A90-509	Drive Motor "A" Performance
   P0A92-521	Hybrid Generator Performance
   P0ADB-227	Hybrid Battery Positive Contactor Control Circuit Low
   P0ADC-226	Hybrid Battery Positive Contactor Control Circuit High
   P0ADF-229	Hybrid Battery Negative Contactor Control Circuit Low
   P0AE0-228	Hybrid Battery Negative Contactor Control Circuit High
   P0BEA-290	Drive Motor "A" Phase V Current Sensor Circuit Range/Performance
   P0BEE-298	Drive Motor "A" Phase W Current Sensor Circuit Range/Performance
   P0C19-306	Drive Motor "A" Torque Delivered Performance
   P0C76-523	Hybrid Battery System Discharge Time Too Long
   P0CA3-442	DC/DC Converter Step Up Voltage Performance
   P0D2E-586	Drive Motor "A" Inverter Voltage Sensor Circuit Range/Performance
   P0D2F-266	Drive Motor "A" Inverter Voltage Sensor Circuit Low
   P0D30-267	Drive Motor "A" Inverter Performance
   P0E05-328	Generator Phase V Current Sensor Circuit Range/Performance
   P0E09-336	Generator Phase W Current Sensor Circuit Range/Performance
   P0E32-585	DC/DC Converter Voltage Sensor "A" Range/Performance
   P0E33-589	DC/DC Converter Voltage Sensor "A" Low
   P0E34-590	DC/DC Converter Voltage Sensor "A" High
   P0E71-344	Generator Torque Delivered Performance
   P1C2A-155	Generator A/D Converter Circuit
   P1C2B-192	Drive Motor "A" A/D Converter Circuit
   P1C2D-587	Hybrid Battery Voltage / DC/DC Converter Voltage Correlation
   P1C3C-294	Drive Motor "A" Phase V Current Sensor Correlation
   P1C3D-302	Drive Motor "A" Phase W Current Sensor Correlation
   P1C3E-333	Generator Phase V Current Sensor Correlation
   P1C3F-341	Generator Phase W Current Sensor Correlation
   P1C4A-288	Drive Motor "A" Phase V Current Sensor Sub Circuit Range/Performance
   P1C4F-296	Drive Motor "A" Phase W Current Sensor Sub Circuit Range/Performance
   P1C54-326	Generator Phase V Current Sensor Sub Circuit Range/Performance
   P1C59-334	Generator Phase W Current Sensor Sub Circuit Range/Performance
   P1C6D-501	Drive Motor "A" Phase V Current Sensor Offset Range/Performance
   P1C6E-502	Drive Motor "A" Phase W Current Sensor Offset Range/Performance
   P1C71-515	Generator Phase V Current Sensor Offset Range/Performance
   P1C72-516	Generator Phase W Current Sensor Offset Range/Performance
   P1C73-512	Sensor Standard Voltage "F" Circuit/Open
   P1CA6-156	Generator Control Module Malfunction
   P1CA7-193	Drive Motor Control Module Malfunction
   P1CAC-200	Generator Position Sensor Angle Malfunction
   P1CAD-168	Drive Motor "A" Position Sensor Angle Malfunction
   P1CAF-792	Generator Position Sensor REF Signal Cycle Malfunction
   P1CB0-795	Drive Motor "A" Position Sensor REF Signal Cycle Malfunction
   P1CB2-793	Generator Position Sensor REF Signal Stop Malfunction
   P1CB3-796	Drive Motor "A" Position Sensor REF Signal Stop Malfunction
   P3004-803	Power Cable Malfunction
   P3133-659	Communication Error from Generator to Drive Motor "A"
   P3134-661	Communication Error from Drive Motor "A" to Generator

   TABLE 2
   
   

   DTC No.	Relevant Diagnosis
   P06B0-163	Sensor Power Supply "A" Circuit/Open
   P06D6-511	Sensor Reference Voltage "F" Circuit/Open
   P06E6-164	Sensor Power Supply "C" Circuit/Open
   P0A1A-151, 166, 517, 658, 791, 809	Generator Control Module
   P0A1B-198, 503, 505, 547, 554, 786, 794, 806	Drive Motor "A" Control Module
   P0A1D (all INF codes)*1	Hybrid Powertrain Control Module
   P0A3F-243	Drive Motor "A" Position Sensor Circuit
   P0A40-500, 504, 506, 549, 556, 808	Drive Motor "A" Position Sensor Circuit Range/Performance
   P0A41-245	Drive Motor "A" Position Sensor Circuit Low
   P0A4B-253	Generator Position Sensor Circuit
   P0A4C-513, 518, 811	Generator Position Sensor Circuit Range/Performance
   P0A4D-255	Generator Position Sensor Circuit Low
   P0A78-279, 287, 548, 555, 807	Drive Motor "A" Inverter Performance
   P0A7A-325, 810	Generator Inverter Performance
   P0A92-521	Hybrid Generator Performance
   P0ADB-227	Hybrid Battery Positive Contactor Control Circuit Low
   P0ADC-226	Hybrid Battery Positive Contactor Control Circuit High
   P0ADF-229	Hybrid Battery Negative Contactor Control Circuit Low
   P0AE0-228	Hybrid Battery Negative Contactor Control Circuit High
   P0C76-523	Hybrid Battery System Discharge Time Too Long
   P0CA3-442	DC/DC Converter Step Up Voltage Performance
   P0D2E-586	Drive Motor "A" Inverter Voltage Sensor Circuit Range/Performance
   P0D2F-266	Drive Motor "A" Inverter Voltage Sensor Circuit Low
   P0D30-267	Drive Motor "A" Inverter Performance
   P0E05-328	Generator Phase V Current Sensor Circuit Range/Performance
   P0E09-336	Generator Phase W Current Sensor Circuit Range/Performance
   P0E32-585	DC/DC Converter Voltage Sensor "A" Range/Performance
   P0E33-589	DC/DC Converter Voltage Sensor "A" Low
   P0E34-590	DC/DC Converter Voltage Sensor "A" High
   P0E71-344	Generator Torque Delivered Performance
   P1C2A-155	Generator A/D Converter Circuit
   P1C2B-192	Drive Motor "A" A/D Converter Circuit
   P1C2D-587	Hybrid Battery Voltage / DC/DC Converter Voltage Correlation
   P1C3C-294	Drive Motor "A" Phase V Current Sensor Correlation
   P1C3D-302	Drive Motor "A" Phase W Current Sensor Correlation
   P1C3E-333	Generator Phase V Current Sensor Correlation
   P1C3F-341	Generator Phase W Current Sensor Correlation
   P1C54-326	Generator Phase V Current Sensor Sub Circuit Range/Performance
   P1C59-334	Generator Phase W Current Sensor Sub Circuit Range/Performance
   P1C71-515	Generator Phase V Current Sensor Offset Range/Performance
   P1C72-516	Generator Phase W Current Sensor Offset Range/Performance
   P1C73-512	Sensor Standard Voltage "F" Circuit/Open
   P1CA6-156	Generator Control Module Malfunction
   P1CA7-193	Drive Motor Control Module Malfunction
   P1CAC-200	Generator Position Sensor Angle Malfunction
   P1CAD-168	Drive Motor "A" Position Sensor Angle Malfunction
   P1CAF-792	Generator Position Sensor REF Signal Cycle Malfunction
   P1CB0-795	Drive Motor "A" Position Sensor REF Signal Cycle Malfunction
   P1CB2-793	Generator Position Sensor REF Signal Stop Malfunction
   P1CB3-796	Drive Motor "A" Position Sensor REF Signal Stop Malfunction
   P3004-803	Power Cable Malfunction
   P3133-659	Communication Error from Generator to Drive Motor "A"
   P3134-661	Communication Error from Drive Motor "A" to Generator

   HINT: 

   • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
   • P0A78-113 may be set due to a malfunction which also causes DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
5. Turn the power switch off.

B → See step   32 

A: Go to next step 

NG → CONNECT SECURELY 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

NG → See step   19 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

NG → See step   21 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the inverter cover from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Bolt A 

   8.0 N*m (82 kgf*cm, 71 in.*lbf)

   Bolt B 

   9.2 N*m (94 kgf*cm, 81 in.*lbf)

   NOTE:

   • Make sure that the tightening torque of the bolt A is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).
   • Make sure that the tightening torque of the bolt B is between 6.4 and 12 N*m (65 and 122 kgf*cm, 57 and 106 in.*lbf).
4. Disconnect the generator cable from the inverter with converter assembly.
5. Check for arc marks at the bolts and terminals for the generator cable.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Connect the generator cable to the inverter with converter assembly.
7. Install the inverter cover.

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the inverter cover from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check that the bolts for the motor cable are tightened to the specified torque, the motor cable is connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Bolt A 

   8.0 N*m (82 kgf*cm, 71 in.*lbf)

   Bolt B 

   9.2 N*m (94 kgf*cm, 81 in.*lbf)

   NOTE:

   • Make sure that the tightening torque of the bolt A is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).
   • Make sure that the tightening torque of the bolt B is between 6.4 and 12 N*m (65 and 122 kgf*cm, 57 and 106 in.*lbf).
4. Disconnect the motor cable from the inverter with converter assembly.
5. Check for arc marks at the bolts and terminals for the motor cable.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Connect the motor cable to the inverter with converter assembly.
7. Install the inverter cover.

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the inverter cover from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Disconnect the generator cable and motor cable from the inverter with converter assembly.
4. Check MG1 for an interphase short using a milliohmmeter.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   1. Using a milliohmmeter, measure the resistance according to the value(s) in the table below.

      HINT: 

      If the MG1 temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.

      Standard Resistance

      Tester Connection	Switch Condition	Specified Condition
      f3-1 (W) - f3-2 (U)	Power switch off	89.5 to 98.9 mΩ
      f3-2 (U) - f3-3 (V)	Power switch off	89.5 to 98.9 mΩ
      f3-3 (V) - f3-1 (W)	Power switch off	89.5 to 98.9 mΩ

      TEXT IN ILLUSTRATION
      
      

      *1	Generator Cable (Inverter with Converter Assembly Side)
      *2	Shield Ground

      HINT: 

      To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68°F).

      • R20 = Rt / {1 + 0.00393 X (T - 20)}

      The calculation is based on the following:

      • R20: Resistance at 20°C (68°F) (mΩ)
      • Rt: Measured resistance (mΩ)
      • T: Temperature when the resistance is measured (°C)
5. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
   NOTE:

   Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   f3-1 (W) - Body ground and shield ground	Power switch off	100 MΩ or higher
   f3-2 (U) - Body ground and shield ground	Power switch off	100 MΩ or higher
   f3-3 (V) - Body ground and shield ground	Power switch off	100 MΩ or higher

6. Connect the generator cable and motor cable.
7. Install the inverter cover.

NG → See step   26 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the inverter cover from the inverter with converter assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Disconnect the generator cable and motor cable from the inverter with converter assembly.
4. Check MG2 for an interphase short using a milliohmmeter.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   1. Using a milliohmmeter, measure the resistance according to the value(s) in the table below.

      HINT: 

      If the MG2 temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.

      Standard Resistance

      Tester Connection	Switch Condition	Specified Condition
      e3-1 (W) - e3-2 (U)	Power switch off	152.6 to 169.0 mΩ
      e3-2 (U) - e3-3 (V)	Power switch off	157.6 to 174.0 mΩ
      e3-3 (V) - e3-1 (W)	Power switch off	151.6 to 168.0 mΩ

      TEXT IN ILLUSTRATION
      
      

      *1	Motor Cable (Inverter with Converter Assembly Side)
      *2	Shield Ground

      HINT: 

      To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68°F).

      • R20 = Rt / {1 + 0.00393 X (T - 20)}

      The calculation is based on the following:

      • R20: Resistance at 20°C (68°F) (mΩ)
      • Rt: Measured resistance (mΩ)
      • T: Temperature when the resistance is measured (°C)
5. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
   NOTE:

   Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   e3-1 (W) - Body ground and shield ground	Power switch off	100 MΩ or higher
   e3-2 (U) - Body ground and shield ground	Power switch off	100 MΩ or higher
   e3-3 (V) - Body ground and shield ground	Power switch off	100 MΩ or higher

6. Connect the generator cable and motor cable.
7. Install the inverter cover.

NG → See step   28 

OK: Go to next step 

1. Remove the PCU fuse from the engine room relay block and junction block assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   PCU fuse terminal	Always	Below 1Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Engine Room Relay Block and Junction Block Assembly
   *2	PCU fuse

3. Install the PCU fuse.

NG → See step   23 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Disconnect connector A59 from inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A59-28 (GND1) - Body ground	Power switch off	Below 1 Ω
   A59-27 (GND2) - Body ground	Power switch off	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)

4. Connect the cable to the negative (-) auxiliary battery terminal.
5. Turn the power switch on (IG).
6. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A59-10 (+B) - Body ground	Power switch on (IG)	11 to 14 V
   A59-9 (+B2) - Body ground	Power switch on (IG)	11 to 14 V

   NOTE:

   Turning the power switch on (IG) with the inverter with converter assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

7. Turn the power switch off.
8. Disconnect the cable from the negative (-) auxiliary battery terminal.
9. Connect the inverter with converter assembly connector.

NG → REPAIR OR REPLACE POWER SOURCE CIRCUIT 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Disconnect connector A59 from the inverter with converter assembly.
3. Disconnect connector A22 from the power management control ECU.
4. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance (Check for Open)

   Tester Connection	Switch Condition	Specified Condition
   A22-24 (HTM+) - A59-8 (HTM+)	Power switch off	Below 1 Ω
   A22-25 (HTM-) - A59-18 (HTM-)	Power switch off	Below 1 Ω
   A22-30 (MTH+) - A59-7 (MTH+)	Power switch off	Below 1 Ω
   A22-29 (MTH-) - A59-17 (MTH-)	Power switch off	Below 1 Ω
   A22-33 (REQ+) - A59-6 (REQ+)	Power switch off	Below 1 Ω
   A22-32 (REQ-) - A59-16 (REQ-)	Power switch off	Below 1 Ω
   A22-21 (CLK+) - A59-5 (CLK+)	Power switch off	Below 1 Ω
   A22-20 (CLK-) - A59-15 (CLK-)	Power switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Switch Condition	Specified Condition
   A22-24 (HTM+) or A59-8 (HTM+) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-25 (HTM-) or A59-18 (HTM-) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-30 (MTH+) or A59-7 (MTH+) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-29 (MTH-) or A59-17 (MTH-) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-33 (REQ+) or A59-6 (REQ+) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-32 (REQ-) or A59-16 (REQ-) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-21 (CLK+) or A59-5 (CLK+) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A22-20 (CLK-) or A59-15 (CLK-) - Body ground and other terminals	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)
   *b	Rear view of wire harness connector (to Power Management Control ECU)

5. Connect the cable to the negative (-) auxiliary battery terminal.
6. Turn the power switch on (IG).
7. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A22-24 (HTM+) or A59-8 (HTM+) - Body ground	Power switch on (IG)	Below 1 V
   A22-25 (HTM-) or A59-18 (HTM-) - Body ground	Power switch on (IG)	Below 1 V
   A22-30 (MTH+) or A59-7 (MTH+) - Body ground	Power switch on (IG)	Below 1 V
   A22-29 (MTH-) or A59-17 (MTH-) - Body ground	Power switch on (IG)	Below 1 V
   A22-33 (REQ+) or A59-6 (REQ+) - Body ground	Power switch on (IG)	Below 1 V
   A22-32 (REQ-) or A59-16 (REQ-) - Body ground	Power switch on (IG)	Below 1 V
   A22-21 (CLK+) or A59-5 (CLK+) - Body ground	Power switch on (IG)	Below 1 V
   A22-20 (CLK-) or A59-15 (CLK-) - Body ground	Power switch on (IG)	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the power management control ECU and inverter with converter assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

8. Turn the power switch off.
9. Disconnect the cable from the negative (-) auxiliary battery terminal.
10. Connect the power management control ECU connector.
11. Connect the inverter with converter assembly connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect connector A22 from the power management control ECU.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A22-24 (HTM+) - A22-25 (HTM-)	Power switch off	80 to 170 Ω
   A22-30 (MTH+) - A22-29 (MTH-)	Power switch off	80 to 170 Ω
   A22-33 (REQ+) - A22-32 (REQ-)	Power switch off	80 to 170 Ω
   A22-21 (CLK+) - A22-20 (CLK-)	Power switch off	80 to 170 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Power Management Control ECU)

3. Connect the power management control ECU connector.

NG → See step   33 

OK: Go to next step 

NG → CONNECT SECURELY 

OK: Go to next step 

NG → CONNECT SECURELY 

OK → See step   34 

NG → CONNECT SECURELY 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   31 

NG → CONNECT SECURELY 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   38 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Disconnect connector A59 from the inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A59-10 (+B) - Body ground	Power switch off	10 kΩ or higher
   A59-9 (+B2) - Body ground	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)

4. Connect the inverter with converter assembly connector.

NG → See step   25 

OK: Go to next step 

Refer to DTC CHECK / CLEAR [11/2014 - ]

NEXT → REPLACE FUSE (PCU) 

NEXT → REPLACE FUSE (PCU) 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the inverter with converter assembly.
3. Check that the bolts for the generator cable are tightened to the specified torque, the generator cable is connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Bolt A 

   T=20 N*m (204 kgf*cm, 15 ft.*lbf)

   Bolt B 

   T=10 N*m (102 kgf*cm, 7 ft.*lbf)

   NOTE:

   • Make sure that the tightening torque of the bolt A is between 16 and 24 N*m (163 and 245 kgf*cm, 12 and 18 ft.*lbf).
   • Make sure that the tightening torque of the bolt B is between 8 and 12 N*m (82 and 122 kgf*cm, 71 and 106 in.*lbf).
4. Disconnect the generator cable from the hybrid vehicle transaxle assembly.
5. Check for arc marks at the bolts and terminals for the generator cable.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

6. Connect the generator cable to the hybrid vehicle transaxle assembly.
7. Install the inverter with converter assembly.

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the generator cable.
3. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   f3-1 (W) - Body ground and shield ground	Power switch off	100 MΩ or higher
   f3-2 (U) - Body ground and shield ground	Power switch off	100 MΩ or higher
   f3-3 (V) - Body ground and shield ground	Power switch off	100 MΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Shielded ground
   *a	Generator Cable (Inverter with Converter Assembly Side)
   *b	Generator Cable (Hybrid Vehicle Transaxle Assembly Side)

   NOTE:

   Wrap the terminal of the three-phase AC cable with insulating tape to prevent them from coming into contact with body ground

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   f3-1 (W) - f4-3 (W)	Power switch off	Below 1 Ω
   f3-2 (U) - f4-2 (U)	Power switch off	Below 1 Ω
   f3-3 (V) - f4-1 (V)	Power switch off	Below 1 Ω
   f3-1 (W) - f4-2 (U)	Power switch off	100 MΩ or higher
   f3-2 (U) - f4-1 (V)	Power switch off	100 MΩ or higher
   f3-3 (V) - f4-3 (W)	Power switch off	100 MΩ or higher

5. Install the generator cable.

NG → See step   36 

OK → See step   31 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Check that the bolts for the motor cable are tightened to the specified torque, the motor cable is connected securely, and there are no contact problems.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   T=10 N*m (102 kgf*cm, 7 ft.*lbf)

   NOTE:

   Make sure that the tightening torque of the bolts is between 8 and 12 N*m (82 and 122 kgf*cm, 71 and 106 in.*lbf).

3. Disconnect the motor cable from the hybrid vehicle transaxle assembly.
4. Check for arc marks at the bolts and terminals for the motor cable.

   Result

   Result		Proceed to
   The terminals are connected securely and there are no contact problems.	There are no arc marks.	A
   The terminals are not connected securely and there is a contact problem.	There are arc marks.	B
   The terminals are not connected securely and there is a contact problem.	There are no arc marks.	C
   The terminals are connected securely and there are no contact problems.	There are arc marks.	B

5. Connect the motor cable to the hybrid vehicle transaxle assembly.

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair article because this may cause a malfunction.

2. Remove the motor cable.
3. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   e3-1 (W) - Body ground and shield ground	Power switch off	100 MΩ or higher
   e3-2 (U) - Body ground and shield ground	Power switch off	100 MΩ or higher
   e3-3 (V) - Body ground and shield ground	Power switch off	100 MΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Shielded ground
   *a	Motor Cable (Inverter with Converter Assembly Side)
   *b	Motor Cable (Hybrid Vehicle Transaxle Assembly Side)

   NOTE:

   Wrap the terminal of the three-phase AC cable with insulating tape to prevent them from coming into contact with body ground

4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   e3-1 (W) - e4-1 (W)	Power switch off	Below 1 Ω
   e3-2 (U) - e4-3 (U)	Power switch off	Below 1 Ω
   e3-3 (V) - e4-2 (V)	Power switch off	Below 1 Ω
   e3-1 (W) - e4-3 (U)	Power switch off	100 MΩ or higher
   e3-2 (U) - e4-2 (V)	Power switch off	100 MΩ or higher
   e3-3 (V) - e4-1 (W)	Power switch off	100 MΩ or higher

5. Install the motor cable.

NG → See step   37 

OK → See step   38