DTC Troubleshooting
NOTE:
Before this troubleshooting, read and observe Precautions for DTC Troubleshooting.
DTC TROUBLESHOOTING CHART
| Step |
Action |
YES |
NO |
| 1 |
Cruise control switch check
- Check cruise control switch referring to CRUISE CONTROL SWITCH INSPECTION .
Is it in good condition? |
Go to Step 2. |
Replace cruise control switch. |
| 2 |
Cruise control command switch circuit check
- Disconnect connectors from ECM with ignition switch turned OFF.
- Check for proper connection of cruise control switch circuit terminal to ECM connector.
- If connections are OK, check the following for cruise command switch circuit.
- Resistance between "LT GRN" wire terminal and "BLK/YEL" wire terminal of cruise control switch connector are infinity (no continuity check)
- Resistance between "LT GRN" wire terminal of cruise control switch connector and vehicle body ground is infinity (ground short check)
Is it in good condition? |
Substitute a known-good ECM and recheck. |
Repair or replace wire circuit. |