| Loss of drive due to transfer case stuck in neutral and transmission park lock function is inoperative |
'PARK LOCK FAILURE APPLY HANDBRAKE' |
- Transfer box control module CAN bus - off bus during range change
- Transfer box changeover solenoid fault
- Transfer box motor fault
- Transfer box internal obstruction
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- Refer to the Network Communications section of the workshop information.
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| Loss of drive |
- |
- Half shaft failure
- Driveshaft failure
- Front or rear axle: differential failure
- Transfer box center differential failure
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- Check the condition of the driveshafts, half shafts and CV joints.
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| Range change inhibited |
'TRANSMISSION RANGE CHANGE INOPERATIVE' |
- Transfer box control module has shut down due to thermal overload
- Transfer box internal obstruction
- Transfer box changeover solenoid fault
- Transfer box motor fault
- Transfer box control module failure
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- Check for transfer box control module DTCs.
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| Off road traction reduced |
'TRANSMISSION OVER HEAT SLOW DOWN' |
- Center differential temperature is approaching the over heated threshold
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- Check for over-temperature DTCs
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| 'TRANSMISSION FAULT - TRACTION REDUCED' |
- Center differential has failed - operating as an open differential
- Transfer case control module has stopped transmitting on the CAN bus and defaults to open center differential
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- Check for lost communication and bus off DTCs
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| Judder |
- |
- Noise / Judder evident possibly after oil change
- Evident when vehicle at low speed, when cornering, parking or steering
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- Using the manufacturers approved diagnostic system, complete the transfer case calibration routine
- Disconnect the electrical connections. Check for bent or corroded terminals. Clean or replace and reconnect electrical connections
- Clear the DTC, cycle the ignition state off / on wait 30 seconds and re-test
- Using the manufacturers approved diagnostic system, complete the transfer case calibration routine
- If the judder is still evident, collect an oil sample and check for water ingress (emulsification). White coloration of oil
- If water ingress is evident replace the transfer case. Ensure breather is installed correctly
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| Clunk |
- |
- Transfer box clutch actuator out of correct position :
- Evident when transfer case range change from high to low and low to high
- Evident during ignition state switched off and transfer case cycles to rest position
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- Using the manufacturers approved diagnostic system, complete the transfer case calibration routine
- Disconnect the electrical connections. Check for bent or corroded terminals. Clean or replace and reconnect electrical connections
- Clear the DTC, cycle the ignition state off / on wait 30 seconds and re-test
- Using the manufacturers approved diagnostic system, complete the transfer case calibration routine
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| Whine - Bearing wear |
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- Bearing Wear: - L322 V8 Diesel: pre-VIN LM334433 and pre-Transfer Case Unit Serial No: A664402
- Bearing Wear: - L319 pre-VIN LA572494
- L320 pre-VIN LS288059
- L322 Gasoline pre-VIN LM346534 and pre-Transfer Case Unit Serial No: A0711997
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NOTE:
For VINs/Transfer Case Serial numbers not specified in the previous column, the correct action is to install a new Transfer Case as required
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