Communication issue with Range Rover
Hello all trying to help out another shop with this range rover, After driving about ½ hour or sometimes less all these codes store and goes into fail safe mode.
ALL TERRAIN CONTROL MODULE
3 Faults Present
|U0416-94||INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE. Unexpected operation.|
|U0403-94||INVALID DATA RECEIVED FROM TRANSFER CASE CONTROL MODULE. Unexpected operation.|
|U0421-94||INVALID DATA RECEIVED FROM RIDE LEVEL CONTROL MODULE. Unexpected operation.|
TRANSFER CASE CONTROL MODULE
2 Faults Present
|P0915-00||GEARSHIFT POSITION - CIRCUIT RANGE/PERFORMANCE. No sub type information.|
|U0132-86||LOST COMMUNICATION WITH RIDE LEVEL CONTROL MODULE. Signal is invalid.|
VEHICLE DYNAMICS CONTROL MODULE
1 Fault present
|U0403-68||INVALID DATA RECEIVED FROM TRANSFER CASE CONTROL MODULE. Event information.|
RIDE LEVEL CONTROL MODULE
3 Faults Present
|C1A03-1C||FRONT LEFT HEIGHT SENSOR. Circuit voltage out of range.|
|U0416-86||INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE. Signal is invalid.|
|C1130-66||AIR SPRING AIR SUPPLY. Signal has too many transitions/events.|
4 Faults Present
|U0132-87||LOST COMMUNICATION WITH RIDE LEVEL CONTROL MODULE. Missing a message.|
|U0182-87||LOST COMMUNICATION WITH FRONT LIGHTING CONTROL MODULE. Missing a message.|
|U0159-87||LOST COMMUNICATION WITH PARKING ASSIST CONTROL MODULE. Missing a message.|
|U0127-87||LOST COMMUNICATION WITH TIRE PRESSURE MONITOR MODULE. Missing a message.|
If none of those codes have a troubletree available I think locating a can diagram and location chart would be a start. Can you describe failsafe? I have seen T/case failures cause vehicles to go into a low gear and stay that way until cleared. Any safety related problem can cause various failsafe issues to occur. Lack of throttle or refusal to upshift come to mind.
Can you see a timeline of events? Who came first? The chicken or the egg? I’ve seen t-case and EAS failure take the whole pt-can down. Need to establish timeline. Weird that engine management and transmission don’t have codes.
Hi Michael. I had one similar to this a few years ago that was hard to diagnose. i ended up leaving a scanner hooked up to the car and was able to verify the complaint. While active I performed a short test in hopes of finding if a control module on the bus was not identified. I found the parking brake module not communicating. Upon further investigation it was necessary to replace the module…
Take a closer look at the instrument cluster. sounds like M/canbus is an issue and cluster its gateway.
Mike, that truck is actually a sport, the t/box controller is on the bulkhead behind the battery. Seen lots of issues with comms, shifter position what have you from corrosion on connectors. Check there. Allen