Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position
3. Select the following menu items: DIAGNOSIS / ENHANCED OBDII / ENGINE / DTC INFO / CURRENT CODES.
4. Read output DTC. (See DTC CHECK / CLEAR )

   Result: 

   DTCs are output 

YES: GO TO  DIAGNOSTIC TROUBLE CODE CHART 

NO: GO TO NEXT STEP 

1. Turn the ignition switch off, move the shift lever to the P position, and lift up the vehicle.
2. Turn the crankshaft pulley by hand to check if the crankshaft rotates.

   OK: 

   The crankshaft rotates. 

NG: Go to step   11 

OK: GO TO NEXT STEP 

1. Disconnect the H31 connector from the HV control ECU.
2. Disconnect the C3 crankshaft position sensor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open) 

   HV CONTROL ECU - CRANKSHAFT POSITION SENSOR (CHECK FOR OPEN)
   
   

   Tester Connection	Specified Condition
   NE+ (H31-25) - NE+ (C3-1)	Below 1 Ω
   NE- (H31-24) - NE- (C3-2)	Below 1 Ω.

   Standard Resistance (Check for short) 

   HV CONTROL ECU - CRANKSHAFT POSITION SENSOR (CHECK FOR SHORT)
   
   

   Tester Connection	Specified Condition
   NE+ (H31-25) or NE+ (C3-1) - Body ground	10 kΩ or higher
   NE- (H31-24) or NE- (C3-2) - Body ground	10 kΩ or higher

   Fig 1: Checking Harness And Connector (HV Control ECU - Crankshaft Position Sensor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the C3 crankshaft position sensor connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   CRANKSHAFT POSITION SENSOR
   
   

   Tester Connection	Specified Condition
   NE+ (C3-1) - NE- (C3-2) (Cold)	1,630 to 2,740 Ω
   NE+ (C3-1) - NE- (C3-2) (Warm)	2,065 to 3,225 Ω

   Fig 2: Inspecting Crankshaft Position Sensor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE: "Cold" and "Warm" mean the temperature of the part to be inspected. The temperature range is -10 to 50°C for "Cold" and 50 to 100°C for "Warm".

NG: REPLACE CRANKSHAFT POSITION SENSOR 

OK: GO TO NEXT STEP 

1. Connect the intelligent tester to the DLC3.
2. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CURRENT CODES.
3. Read output DTC. (See DTC CHECK / CLEAR )
4. Confirm and record the DTCs, freeze frame data, and information for the HV system.

1. Connect the intelligent tester to the DLC3.
2. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CLEAR CODES.
3. Clear the DTCs of the HV system.

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position.
3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DATA LIST / MG1 REV and ENGINE SPD.
4. Depress the brake pedal and put the vehicle into the READY-on state.

   OK: 

   The READY light comes on. 

   HINT:

   • If the READY light does not come on and the reading on the intelligent tester shows DTC P0A90-239 (HV transaxle input malfunction [shaft damaged]), or the READY light comes on and the Generator turns but the engine does not crank, replace the HV transaxle assembly.
   • If this DTC (P0AF-238) is output, the HV battery may be dead and DTC P3000-388 or P3000-389 may be output. If any of them is output, the battery should be charged with the THS charger.
5. Refer to the graph for data list confirmation of "MG1 REV" and "ENGINE SPD".
   ENGINE SPEED AND GENERATOR SPEED
   
   

   Engine speed	Generator speed
   Approx. 900 rpm	Approx. 3,200 rpm
   Approx. 1,500 rpm	Approx. 5,400 rpm

   Fig 3: Identifying Graph For Data List Confirmation Of "MG1 REV" And "ENGINE SPD"

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

OK: GO TO NEXT STEP 

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position.
3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DATA LIST / MG1 REV and ENGINE SPD.
4. While the READY light is on, depress the accelerator pedal for 10 seconds with the shift lever in the P position.

   OK: 

   The engine revs up. 

   HINT:

   If the engine does not rev up and the reading on the intelligent tester shows DTC P0A90-239 (HV transaxle input malfunction [shaft damaged]), or the Generator turns but the engine does not crank, replace the HV transaxle assembly.

NG: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

OK: GO TO NEXT STEP 

1. Connect the intelligent tester to the DLC3.
2. Depress the brake pedal, move the shift lever to the D position, and release the brake pedal.

   OK: 

   The wheels turn (creeping along). 

   HINT:

   If the wheels do not turn and the reading on the intelligent tester shows DTC P0A90-602 (transaxle output malfunction), replace the HV transaxle assembly.

NG: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

OK: GO TO NEXT STEP 

1. Connect the intelligent tester to the DLC3.
2. While driving at the vehicle speed of more than 6 mph (10 km/h), fully depress the accelerator pedal to raise the engine speed.

   OK: 

   Engine speed increases smoothly. 

   HINT:

   If the engine over-revs or the reading on the intelligent tester shows DTC 0A90-241 (transaxle input malfunction [torque limiter slipping]), replace the transmission input damper.

NG: REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY 

OK: PERFORM SIMULATION TEST. IF SYMPTOM IS NOT REPRODUCED, REPLACE ENGINE, HV TRANSAXLE AND HV CONTROL ECU 

1. Lift up the vehicle.
2. Move the shift lever to the N position with the ignition switch off.
   CAUTION: Do not put the vehicle into the READY-on state while performing this inspection. Be sure to turn the ignition switch off because the engine may start.
3. Turn the crank pulley by hand to check if the front tires rotate.

   OK: 

   The front tires do not rotate. 

NG: CHECK AND REPAIR ENGINE 

OK: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY