Cruise Control - Inoperative/Malfunctioning

CRUISE CONTROL INOPERATIVE/MALFUNCTIONING

DIAGNOSTIC AIDS
Perform the following in order to avoid a misdiagnosis:
- Inspect for proper operation of the brake lamps. Refer to Exterior Lighting Systems Description and Operation in Lighting Systems.
- Inspect for proper operation of the clutch, if equipped with a manual transmission. Refer to Clutch System Description and Operation in Clutch.
- Electro magnetic interference (EMI) on the vehicle speed sensor signal circuit may cause erratic cruise control operation.

CONDITIONS FOR ENABLING CRUISE CONTROL
- The vehicle speed is greater than 40 km/h (25 mph).
- The vehicle is not in PARK, REVERSE, NEUTRAL, or 1st gear.
- The system voltage is within 12 volts and 16 volts.

TEST DESCRIPTION

Steps 1 - 5:

Steps 6 - 8:

Steps 9 - 13:

Steps 14 - 20:

Steps 21 - 26:

The numbers below refer to the step numbers on the diagnostic table.
7. This step tests the cruise control set/coast switch signal circuit for an open or for a high resistance.
8. This step tests the cruise control resume/accel switch signal circuit for an open or for a high resistance.
9. This step tests the ignition 1 voltage circuit for an open, for a short to ground, or for a high resistance.
26. DTCs will set in the PCM when you perform this table.