Circuit Description
This DTC identifies a malfunction within the passenger presence system (PPS) module during sleep mode. If the sensing and diagnostic module (SDM) detects a malfunction within the PPS module, a DTC will be set.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1796 Passenger Presence Module Sleep Malfunction
Conditions for Running the DTC
Ignition 1 voltage is within the normal operating voltage range.
Conditions for Setting the DTC
The SDM detects a PPS module sleep mode malfunction.
Action Taken When the DTC Sets
The SDM commands the AIR BAG indicator ON.
Conditions for Clearing the DTC
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Diagnostic Aids
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
An internal PPS module malfunction
If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections .
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Is DTC B1796 set as a current DTC? | Go to Step 3 | Go to Diagnostic Aids |
3 | Replace the passenger presence system (PPS) module. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? | Go to Step 4 | -- |
4 |
Does the DTC reset? | Go to Step 2 | System OK |
