Cruise control – fault diagnosis

CRUISE CONTROL – FAULT DIAGNOSIS

2A

3A

CONDITIONS Ignition Switch

Position: 0

Cruise Control Switch

On

RESULTS

Less than 1 ohm

OK PROBLEM CAUSE - WY Wire - B Wire - Cruise Control Switch

Test B 1B

CONDITIONS Ignition Switch

Position: II
Cruise Control Switch On
Transfer Box Hi Range
Gear Selector Forward Gear
Clutch Pedal Released

OK PROBLEM CAUSE - OW Wire

C255

Z238 WY Body Electrical Control Module (BECM)

OK PROBLEM CAUSE - OW Wire - Body Electrical Control Mod- ule (BECM)

OW V C241P

Z249 Cruise Control Con- verter/Inverter Module RESULTS

BAT VOLT

OK

2B