The suspension on my '10 LR4 is stuck on 'normal height' but is not raising. When driving, the ride is extremely bouncy from the front of the vehicle.

Here are my fault codes:

• P0526 - Fan Speed Sensor Circuit
• P0430 - Catalyst System Efficiency Below Threshold
• C0031-64 - Front left wheel speed sensor
• C0034-64 - Front right wheel speed sensor
• U0421-68 - Invalid data received from ride level control module
• U3003-62 - Battery voltage

No offroad driving.

Any suggestions as to what the issue is and the likely fix?

 

The easiest and most obvious solution's battery voltage. Check the age of the battery, have it load tested, check voltage with a meter after it's been sitting for a day. If it reads above 12.5 after resting, it's probably ok. Anything less than 12.6 and it likely needs replacing.

 

Just came from experiencing the same, where the suspension pump would not kick in and I could not adjust the height of the car. Every day it would go lower and lower. My error codes were C1131 and C1A20. My suspension pump was the problem. Replaced the pump and reset the code and all is well. The suspension pump works and I can adjust it again and the drive is smooth again.