Diagnostic Test

WIRELESS IGNITION NODE (WIN) DTCS PRESENT
1. Ignition on, engine not running.
2. With the scan tool, read DTCs in the WIN.
  Are there any DTCs present?
  
  Yes
  - Perform the appropriate diagnostic procedure. Refer to WIN - DIAGNOSIS AND TESTING .
  No
  - Replace the Air Suspension Control Module (ASCM) in accordance with the Service Information. Refer to MODULE, AIR SUSPENSION CONTROL, REMOVAL .
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE - ASCM VERIFICATION TEST .