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Diagnostic Manual, Chassis and Drivetrain,
Volume 1

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LOCATION:    3.2 Adaptive Damping System (ADS)   >   13 Diagnosis - Complaint Related Diagnostic Chart


Diagnosis - Complaint Related Diagnostic Chart

Complaint/Problem Possible cause Remedy/Test step 1)
ADS MIL (A1e27) comes on with engine running Steering angle sensor (N49) not initialized

DTC stored
Turn steering wheel from right to left stop.
12 DTC Memory
Damping too hard/too soft   12 DTC Memory
Vehicle level too low (base level)   34 1.0
(SMS, Job No. 40-300)
Vehicle lowers at rear axle   Visually check for external leaks
Hydraulic oil level too low   Visually check for external leaks
Model 129 only
Vehicle lowers with engine off
  Visually check for external leaks
34 1.0
Model 129 only
Vehicle lowers with engine running
  33 1.0
Model 129 only
Vehicle lowers at front axle
  Visually check for external leaks
34 1.0
36 1.0
Model 129 only
Vehicle does not lift at one or both axles
  33 1.0
32 1.0
1) Observe Preparation for Test, see 22.