Air Bag Control Module: Testing and Inspection
DTC Normal Source Voltage Drop- The supplemental restraint system is equipped with a voltage-increase circuit (DC-DC converter) in the center airbag sensor assembly in case the source voltage drops.
- When the battery voltage drops, the voltage-increase circuit (DC-DC converter) functions to increase the voltage of the supplemental restraint system to normal voltage.
- The diagnosis system malfunction display for this circuit is different to other circuits - When the SRS warning light remains lit up and the diagnostic trouble code is a normal code, source voltage drop is indicated.
- Malfunction in this circuit is not recorded in the center airbag sensor assembly, and the source voltage returns to normal, the SRS warning light automatically goes off.
DTC (Normal)
Diagnosis - Source voltage drop.
Diagnostic Chart:
Inspection Procedure - Step 1:
