DTC Troubleshooting

NOTE: Before performing the above-mentioned troubleshooting, read and observe PRECAUTIONS FOR DTC TROUBLESHOOTING .

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 MAIN (ON/OFF) switch and 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 MAIN (ON/OFF) switch and command switch circuit. Voltage of between "BLK/WHT" wire terminal of cruise control switch connector and vehicle body ground is 0 V with ignition switch turned ON (power short check) 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.