Circuit Description
DTC 55 is an indication of an internal inflatable restraint sensing and diagnostic module (SDM) malfunction. The internal malfunction is detected within the SDM. No external circuits are involved.
Conditions for Running the DTC
Ignition 1 voltage is within the normal operating voltage range.
Conditions for Setting the DTC
The SDM detects either a write error malfunction or a checksum memory malfunction.
Action Taken When the DTC Sets
The SDM turns the AIR BAG indicator ON.
Conditions for Clearing the DTC
DTC 55 is a latched DTC. You cannot clear a latched DTC. Replace the SDM after following the instructions in the diagnostic table.
Diagnostic Aids
DTC 55 is an indication of an internal SDM malfunction. Replace the SDM.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: SIR Schematics | |||
1 | Did you perform A Diagnostic System Check - SIR? | Go to Step 2 | |
2 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? | Go to Step 3 | -- |
3 |
Does the DTC reset? | Go to Step 2 | System OK |
