Pinpoint Tests

PINPOINT TEST A: NO COMMUNICATION WITH THE AIR SUSPENSION MODULE

A1:

A2:

Normal Operation
The air suspension module controls the air suspension and the variable assist power steering (VAPS). Voltage is supplied through the central junction box (CJB) and the battery junction box (BJB) on circuits 418 (DG/YE) and 298 (VT/OG). The air suspension module is grounded through circuit 676 (PK/OG).

Possible Causes
- fuse(s)
- circuit 298 (VT/OG) open or short to ground
- circuit 418 (DG/YE) open or short to ground
- circuit 676 (PK/OG) open
- air suspension module