TC and CG Terminal Circuit: Procedure

1. Turn the ignition switch on (IG).
   Fig 1: Identifying DLC3 Connector Terminal CG And TC

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

   Standard voltage

   Tester Connection	Condition	Specified Condition
   D20-13 (TC) - Body ground	Ignition switch on (IG)	10 to 14 V

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D20-4 (CG) - Body ground	Always	Below 1 Ω

NG → See step   4 

OK: Go to next step 

1. Disconnect the ECM connector.
   Fig 2: Checking Harness And Connector (ECM TO DLC3)

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   A55-27 (TC) - D20-13 (TC)	Always	Below 1 Ω

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D20-13 (TC) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (TC TERMINAL CIRCUIT) 

OK: Go to next step 

1. Check if the CAN communication system DTC is output. Refer to DIAGNOSIS SYSTEM .

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

   HINT: 

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

B → REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

A → REPLACE ABS & TRACTION ACTUATOR ASSEMBLY 

1. Disconnect the ECM connector.
   Fig 3: Checking Harness And Connector (ECM TO DLC3)

   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
   A55-27 (TC) - D20-13 (TC)	Always	Below 1 Ω

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D20-13 (TC) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (TC CIRCUIT) 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 4: Identifying DLC3 Connector Terminal CG

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D20-4 (CG) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) 

OK: Go to next step 

1. Using SST, connect the terminals TC and CG of the DLC3.
   Fig 5: Identifying DLC3 Connector Terminal CG And TC

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   • SST: 09843-18040 
2. Check that the engine warning light is blinking.

   Result

   Result	Proceed to
   Engine warning light is blinking	A
   Engine warning light is not blinking	B

B → REPLACE ECM 

A: Go to next step 

1. Check if the CAN communication system DTC is output. Refer to DIAGNOSIS SYSTEM .

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

   HINT: 

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

B → REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

A → REPLACE ABS & TRACTION ACTUATOR ASSEMBLY