Component Tests and General Diagnostics

Control Unit Pin Voltage Test

Fig. 17 Control Unit Pin Voltage Test. Legacy:

Fig. 18 Control Unit Pin Voltage Test. SVX:

Refer to Figs. 17 and 18, for pin voltage test.

Main Switch Test

1. Turn ignition switch On.
2. Ensure main switch is not illuminated when in the Off position.
3. Ensure main switch is illuminated when in the On position.
4. Leave main switch On.
5. Turn ignition switch Off then On. Ensure main switch is not illuminated.

Sub Switch Test

1. Ensure switch operation is proper in the ``Set/Coast'' and ``Resume/Accel'' positions.
2. Ensure switch returns to original position when released.

Constant Speed Test

1. Turn main switch On.
2. Set switch to ``Set/Coast'' with vehicle speed over 25 mph. Ensure vehicle maintains set speed.

Acceleration Test

1. Turn main switch On.
2. Set vehicle at speed greater than 25 mph. Ensure vehicle accelerates with switch held in ``Resume/Accel'' position and optional speed is maintained with switch released.

Deceleration Test

1. Turn main switch On.
2. Set vehicle at speed greater than 25 mph. Ensure vehicle decelerates with switch held in ``Set/Coast'' position and optional speed is maintained with switch released. During deceleration, cruise control will release when speed reaches 19 mph.