Cruise Control: Testing and Inspection

Cruise Control:
1. If the back-up lights operate properly, then fuse #12 (S12) is OK.
2. Vacuum system leak check.
- Disconnect vacuum hose from vacuum control motor.
- Depress servo unit diaphragm.
- Plug disconnected vacuum hose. Servo unit diaphragm should remain depressed and not move.
If not, replace diaphragm or repair leak.