B2502

DTC B2502

CIRCUIT DESCRIPTION
When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform a turn-on test to diagnose critical malfunctions within the SDM itself.

Upon passing these tests, the ignition and deployment loop voltages are measured to ensure that these voltages are within the normal ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deployment loops.

The SDM tests the voltage continuously from the warning lamp terminal.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B2502 Passenger Air Bag Disabled Indicator Circuit Malfunction

CONDITIONS FOR RUNNING THE DTC
Ignition voltage is within the normal operating voltage range.

CONDITIONS FOR SETTING THE DTC
- The passenger OFF indicator lamp does not turn ON when the ignition switch is turned ON.
- The passenger OFF indicator lamp does not turn ON when the vehicle is running with no person on the passenger seat.

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.

TEST

Step 1 - Step 12:

Step 13 - Step 15: