Test I: DTC C1127 - Deactivator Switch Stuck Open (Vehicles Without Stability Assist)

PINPOINT TEST I: DTC C1127 - DEACTIVATOR SWITCH STUCK OPEN (VEHICLES WITHOUT STABILITY ASSIST)

I1-I2:

I2-I3:

I4:

Normal Operation
When the brake pedal is applied the speed control deactivator switch opens. This causes circuit 535 (LB/RD) to open. The speed control actuator then releases the throttle, sending the actuator into standby mode until the speed control resume or set switch is pressed, the speed control is switched off, or the ignition switch is turned off.

Possible Causes
- Fuse
- Circuit 535 (LB/RD) open
- Circuit 601 (LB/PK) open
- Speed control deactivator switch
- Speed control actuator