LR3 terrain control module fault

properdisco

New member
Feb 11, 2024
1
0
U.S.A.
I have a 2007 LR3 4.4L HSE and am experiencing some troubles with terrain management. When ever I let off of the brake in drive I Get a transmission error and it lowers the car but I still have all gears that shift great. The reason Im pretty sure its linked to terrain management is because when I switch it to snow mode and then back to drive in about a mile then switch back to normal I don’t have this error anymore. Possible short? Dash also serviced less than a month ago so it’s not that. Any past experience/ ideas?
 

discostew

Well-known member
Sep 14, 2010
7,735
1,026
Northern Illinois
Pull codes and chase those. But if you want to go by probabilities and experience. Those codes are more than likely going to send you digging in the wire harness in the right side sill area. Look for a white/red wire. Then look for blue masking tape covering a splice. Pull on the wires from both sides of that splice. If the wires come apart you found it.