| Warning message: 2 WHEEL DRIVE ONLY - TRACTION REDUCED |
- All wheel drive system fault
- Anti-lock brake system fault
- Engine system fault
- Front halfshaft fault
- Front differential fault
- Front driveshaft fault
- Transfer case fault
|
- Using the manufacturer approved diagnostic system, check the transfer case control module for related DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system, check the engine control module for related DTCs and refer to the relevant DTC index
- Check the integrity of the front halfshafts
- Check the integrity of the front differential
- Check the integrity of the front driveshaft
- GO to Pinpoint Test C .
|
| All wheel drive inoperative - No drive to the front wheels |
- Front halfshaft fault
- Front differential fault
- Front driveshaft fault
- Transfer case fault
|
- Check the integrity of the front halfshafts
- Check the integrity of the front differential
- Check the integrity of the front driveshaft
- GO to Pinpoint Test C .
|
| All wheel drive inoperative after draining and refilling the transfer case fluid |
- Transfer Case Oil Change Reset routine not performed
|
- Using the manufacturer approved diagnostic system, perform routine - Transfer Case Oil Change Reset. If the fault persists, re-configure the transfer case control module with the latest level software and perform routine - Transfer Case Oil Change Reset
|
| Front driveshaft disengaged from transfer case |
- Transfer case/front driveshaft fault
|
|
| Transfer case clutch over temperature DTC set |
- Tire pressures incorrect
- Wheel/tire sizes incorrect
- Front left/right halfshaft disengaged from the front differential
- Transfer case/front driveshaft fault
|
|
| Transfer case fluid leaking due to cracked/damaged rear casing (with no evidence of external impact) |
- Intermediate gear bearing failure
|
NOTE:
Only applicable up to transfer case serial number 16830.
- Install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification
|
| Transfer case noise and vibration excessive at all speeds |
- Intermediate gear bearing failure
|
NOTE:
Only applicable up to transfer case serial number 16830.
- Using the manufacturer approved 'Chassis Ear' equipment, determine if the noise originates in the transfer case. If so, install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification
|
| Transfer case noise and vibration excessive during low speed maneuvering with high steering inputs (front and rear driveshaft rotating at different speeds) |
- Coupling engaging unintentionally because of fluid contamination due to bearing wear
|
NOTE:
Only applicable up to transfer case serial number 6021.
- Install a new transfer case. Using the manufacturer approved diagnostic system, perform routines - Calibrate Clutch and Transfer Case Classification
|