Lost Communication With Ride Level Control Module
What does U0132 mean?
The U0132 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Ride Level Control Module. This is a moderate severity code.
Common Symptoms
- Air suspension or ride height warning light on
- Vehicle sitting low or unevenly
- Ride height does not adjust
- Air compressor running constantly or not at all
- Harsh ride quality
Probable Causes (Ranked by Likelihood)
- Failed ride level control module Very High
- Damaged CAN bus wiring to suspension module High
- Air suspension compressor failure Moderate
- Leaking air spring or air line Moderate
- Height sensor failure Low
Step-by-Step Diagnostic Procedure
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Scan for DTCs in the suspension and ride control modules
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Check if the air compressor activates when ride height is low
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Inspect air springs and air lines for leaks -- use soapy water
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Verify power supply and ground at the ride level control module
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Test ride height sensors at each corner for proper output
Frequently Asked Questions
Can I drive with code U0132?
You can drive short distances carefully if the vehicle is at a safe ride height. If the vehicle is sagging on one side or sitting very low, do not drive as it could damage suspension components.
What causes U0132?
A failed ride level control module is the most common cause. Air suspension systems are complex, and compressor failures, air leaks, and height sensor issues can also contribute.
Is air suspension expensive to repair?
Yes. Air suspension repairs can range from $300 for a height sensor to $2000 or more for a compressor and air spring replacement. Some owners convert to conventional springs to avoid recurring costs.