Suspension - 'Airmatic(R) Inoperative' Message/DTC's Set

Date: January 15, 2008

Order No.: T-B-32.22/50a

Supersedes: T-B-32.22/50 dated Sept. 14, 2007

Group: 32

Revision History

Revision Date Purpose

a 1/15/08 Reference to Figure Revised

- 9/14/07 Initial issue

SUBJECT:
Model 164.122/175/186/177 with code 489 (Airmatic suspension)
Model 251.122/156/165/175/177

Airmatic Inoperative/"Visit Workshop" Displayed in Instrument Cluster





If you receive customer reports in the above model vehicles that Airmatic is inoperative and the vehicle has the following message displayed "Airmatic-Visit Workshop"; the fuse for the Airmatic compressor may have blown and any of the corresponding fault codes may be stored in the Airmatic control unit:

The cause may be that the compressor's harness chafed on the retaining plate or on the body panels in the area of the right front headlamp, thus causing a short circuit and blowing the fuse. Perform the following to resolve.

1. Install a new 40A fuse for the compressor (Fuse f108). Refer to WIS document GF54.15-P-1256-02RT (251) or GF54.15-P-1256-02GZ (164).

2. Perform a Star Diagnosis short test.

3. If the short test is successful, the compressor is fully operational and the blown fuse was caused by a short circuit. Proceed to step 5.

4. If the short test in not successful, process the fault code(s) through STAR Diagnosis.





5. Check the routing of the compressor cable in the vicinity of the right front headlamp from the compressor towards the A-pillar (Figure 1).

6. If the harness is found to be chafed or routed near the retaining plate or body panels repair as instructed in WIS document AR00.19-P-0100A. Once repaired reposition the harness away from retaining plate or body panel and secure with a tie wrap.

Note:
It may be necessary to open the sheath on the cable harness in order to identify chafe marks.





Parts Information

Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on September 14, 2007. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.





In Case of Warranty, use the table.