Cruise Control - Inoperative/Malfunctioning

DIAGNOSTIC AIDS

IMPORTANT: Perform the following in order to avoid misdiagnosis.
^ Inspect for proper operation of brake lamps and clutch switch, if equipped.
^ Inspect for proper operation of the transmission range switch.
^ Inspect throttle linkage for mechanical binding which could cause the system to malfunction.
^ Inspect cruise control cable adjustment, should have minimum slack.
^ EMI on the 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).

TEST

Cruise Control Inoperative/Malfunctioning (4.3L, 4.8L, 5.3L, 6.0L WO/ETC) - Steps 1-8:

Cruise Control Inoperative/Malfunctioning (4.3L, 4.8L, 5.3L, 6.0L WO/ETC) - Steps 9-20:

Cruise Control Inoperative/Malfunctioning (4.3L, 4.8L, 5.3L, 6.0L WO/ETC) - Steps 21-31:

Cruise Control Inoperative/Malfunctioning (4.3L, 4.8L, 5.3L, 6.0L WO/ETC) - Steps 32-40: