System Will Not Engage
- Turn ignition on. Turn cruise control main switch to ON position. If indicator light illuminates, go to next step. If indicator light does not illuminate, check for blown fuse, open in power supply circuit to main switch or faulty cruise control main switch. If these components are okay, perform CRUISE CONTROL RELAY test under TESTING.
- Perform POWER SUPPLY CIRCUIT test under TESTING. If power supply circuit is okay, perform CUT-OFF CIRCUIT test under TESTING. If cut-off circuit is okay, perform SET/COAST SWITCH CIRCUIT test under TESTING.
- If SET/COAST switch circuit is okay, perform SPEED SENSOR CIRCUIT test under TESTING. If speed sensor circuit is okay, perform ACTUATOR test under TESTING. If actuator is okay, measure resistance between cruise control module connector terminal No. 8 and terminals No. 9, 10 and 14. See Figure and Figure.
- If resistance is not about 8-45 ohms when measuring between terminals No. 8 and 9, and about 65 ohms when measuring between terminal No. 8 and terminals No. 10 and 14, repair harness. If resistance is as specified, replace cruise control module.