DTC C0023-12: Inspection
BRK_LAMP Shorted Wire Inspection
Test Procedure
- Preparation
- VSA modulator-control unit connector (46P): disconnected
- Relay circuit board connector A (18P): disconnected
- Procedure
- Perform the inspection according to the following chart.
Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
- Perform the inspection according to the following chart.
| (Disconnected) VSA modulator-control unit connector (46P) female terminals | ||||
| IG Mode |
|
Normal Conditions | ||
| BRK_LAMP shorted to ground inspection | OFF | There is more than 1 M? |
Results
- If abnormal, there is a problem in the circuit.
STOP_SW Open Wire Inspection
NOTICE:
Before disconnecting the PCM connector, jump the SCS line with the HDS, and wait more than 1 minute.
Test Procedure
- Preparation
- PCM connector B (72P): disconnected
- Brake pedal position switch connector (4P): disconnected
- Procedure
- Perform the inspection according to the following chart.
| (Disconnected) PCM connector B (72P) female terminals | (Disconnected) Brake pedal position switch connector (4P) female terminals | ||||
| IG Mode |
|
|
Normal Conditions | ||
| STOP_SW open wire inspection | OFF | There is less than 1 Ω | |||
Results
- If abnormal, there is a problem in the circuit.
PCM Inspection
NOTE: Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.
Test Procedure
- Install a known-good PCM and attempt to reproduce the failure.
Results
- If the failure is reproduced, there is a problem with other related components.
- If the symptom/DTC goes away, the PCM must be faulty.
VSA Modulator-Control Unit Inspection
Test Procedure
- If the other inspection item(s) indicated a normal condition, then it is determined that the remaining VSA modulator-control unit is the cause.
Results
- There is a problem with the VSA modulator-control unit.