DTC Troubleshooting
DIAGNOSTIC PROCEDURES CHART
| Step |
Action |
YES |
NO |
| 1 |
Was "Engine and Emission Control System Check" performed? |
Go to Step 2. |
Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 2 |
Brake light switch check
- Check brake light switch, see BRAKE LIGHT SWITCH INSPECTION
.
Is it in good condition? |
Go to Step 3. |
Replace brake light switch. |
| 3 |
Brake light switch power supply circuit check
- Confirm that ignition mode of keyless push start system is "OFF".
- Disconnect brake light switch connector.
- Check for proper terminal connection to brake light switch connector.
- If connections are OK, check that voltage between each of "A1" and "A2" circuits and ground is battery voltage with ignition mode of keyless push start system in "ON".
Are they in good condition? |
Go to Step 4. |
Repair or replace defective wire harness. |
| 4 |
Brake light switch signal circuit check
- Push engine switch to change ignition mode to "OFF".
- Disconnect "C01" and "E01" connectors.
- Check for proper terminal connection to "C01" and "E01" connectors.
- If connections are OK, check that brake light switch signal circuit (B1 and B2) is as follows.
- Resistance of "B1" and "B2" circuits: less than 1 Ω
- Resistance between each of "B1" and "B2" circuits and ground: infinity
- Resistance between "B1" circuit terminal and other terminal at brake light switch connector: infinity
- Resistance between "B2" circuit terminal and other terminal at brake light switch connector: infinity
Are they in good condition? |
Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION
. |
Repair or replace defective wire harness. |