Use Diagnostic Trouble Codes (DTCs) (from the DTC checks) in the table below to determine the trouble area and proper inspection procedure. The Supplemental Restraint System (SRS) diagnostic trouble code chart is shown below as an example.

Symptom simulation
Problem symptoms tableOn-vehicle cleaning
1. INSPECT FINS BLOCKAGE
If the fins are clogged, wash them with water or a steam cleaner.
Dry with compressed air.
NOTICE:
If the distance between the steam cleaner and the
core is too close, the fins may become damaged.
Keep the following injection distance.
Standard:
If the ...