TC and CG Terminal Circuit [12/2013 - 11/2016]: Procedure

1. Check for DTCs.

   Refer to DIAGNOSIS SYSTEM [12/2013 - 11/2016]

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. 

Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016] 

Result: 

A 

See step  2

1. Check if DTC C2179/79 is output.

   Refer to DTC CHECK / CLEAR [12/2013 - ]

   Result	Proceed to
   DTC C2179/79 is not output.	A
   DTC C2179/79 is output.	B

Result: 

B 

GO TO DTC C2179/79. 

Refer to  DTC C2179/79: Tire Pressure Monitor ECU Communication Stop [12/2013 - ]  

Result: 

A 

See step  3

1. Turn the ignition switch to ON.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of DLC3

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   F25-13 (TC) - F25-4 (CG)	Ignition switch ON	11 to 14 V

   Proceed to
   OK
   NG

Result: 

NG 

See step  5

Result: 

OK 

See step  4

1. Turn the ignition switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of DLC3

2. Replace the ECM.

   for 1AR-FE: Refer to REMOVAL [12/2013 - ]

   for 2GR-FE: Refer to REMOVAL [12/2013 - 11/2016]

3. Using SST, connect terminals TC and CG of the DLC3.
   • SST: 09843-18040 
4. Check that the tire pressure warning light is blinking.

   OK

   The tire pressure warning light is blinking.

   HINT: 

   If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part.

   Refer to PROBLEM SYMPTOMS TABLE [12/2013 - ]

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. 

Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - ] 

1. Disconnect the A43 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR 1AR-FE:
   
   

   Tester Connection	Condition	Specified Condition
   F25-13 (TC) - A43-23 (TC)	Always	Below 1 Ω
   F25-13 (TC) or A43-23 (TC) - Body ground	Always	10 kΩ or higher

   Standard Resistance

   FOR 2GR-FE:
   
   

   Tester Connection	Condition	Specified Condition
   F25-13 (TC) - A43-45 (TC)	Always	Below 1 Ω
   F25-13 (TC) or A43-45 (TC) - Body ground	Always	10 kΩ or higher

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of DLC3

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F25-4 (CG) - Body ground	Always	Below 1 Ω

   HINT: 

   If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part.

   Refer to PROBLEM SYMPTOMS TABLE [12/2013 - ]

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Replace the ECM.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of DLC3

   for 1AR-FE: Refer to REMOVAL [12/2013 - ]

   for 2GR-FE: Refer to REMOVAL [12/2013 - 11/2016]

2. Using SST, connect terminals TC and CG of the DLC3.
   • SST: 09843-18040 
3. Check that the tire pressure warning light is blinking.

   OK

   The tire pressure warning light is blinking.

   HINT: 

   If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part.

   Refer to PROBLEM SYMPTOMS TABLE [12/2013 - ]

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. 

Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - ]