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I have a 2005 Range Rover HSE 4.4L 230,000 miles( BMW motor) that having air suspension issues. I have read and read from Range Rover forums that this is a common issue. I would like to learn how to properly diagnose this issue and correct it. The vehicle continues to show air suspension inactive. Once i scan the vehicle, It show can bus fault for under the air suspension control module and for the ABS module, it shows left rear wheel speed sensor open circuit. So I performed a visual inspection on the ABS sensor. (left rear) found that part of the abs line was damaged/exposed wires so I replaced the ABS sensor and line. After getting that installed, I cleared the codes, performed a steering angle sensor calibration, performed a height calibration on the air suspension as well. Vehicle drove well at the standard ride height for a few miles then the suspension inactive light illuminated again along with the brake & ABS light. I scanned the vehicle again and the same codes reappeared. Can bus fault under air suspension & left rear wheel speed sensor open circut. Then I looked at all four wheel speed sensors with live data while slowing driving down my street and all four were responding to the vehicle speed correctly. I know these vehicle are problematic and have a host of suspension issues, but if anyone could help guide me in the right direction on diagnosing this issue, i would greatly appreciate it!!!
