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Cruise Control Inoperative/Malfunctioning (4.2L)



Cruise Control Inoperative/Malfunctioning (4.2L)

Diagnostic Aids

Perform the following in order to avoid misdiagnosis:

* Inspect for proper operation of the stop lamps.
* Electromagnetic interference (EMI) on the speed sensor signal circuit may cause erratic cruise control operation.

For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Diagnostic Aids. Diagnostic Aids

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 between 12-16 volts.

Test

Step 1 - Step 12:




Step 13 - Step 20: