Passenger Airbag On-Off Switch
Vehicles without rear seats will be equipped with a Passenger Airbag (PAB) On - Off Switch. The PAB On - Off Switch allows the vehicle operator to turn the passenger airbag function On or Off.
The Off indicator in the PAB On - Off Switch will be illuminated for 2 seconds whenever the ignition is transitioned to the Run position as a bulb check. The Off indicator will remain illuminated when the PAB On - Off Switch is turned to the Off position.
The PAB On - Off Switch assembly is mounted in the center of the instrument panel below the radio, this allows the Off indicator to be visible to both front seat occupants.
To operate the Passenger Airbag On - Off Switch, insert the ignition key into the PAB On - Off Switch keyway, push the key in to release the internal plunger, and rotate switch to the desired position. The spring-loaded locking plunger prevents the user from leaving the key in the switch. The key will be automatically ejected from the switch when inward force is not applied. The ignition key is the only key or object that should ever be inserted into the PAB On - Off Switch.
The ACM continuously monitors the resistance of the Passenger Airbag On - Off Switch circuits to identify the switch position and to provide switch circuit diagnostics.
- ON Position: Passenger Airbag On - Off Switch resistance = 175 to 190 ohms
- OFF Position: Passenger Airbag On - Off Switch resistance = 820 to 870 ohms
If the ACM detects that the PAB On - Off Switch circuits are open, shorted to ground, or shorted to battery voltage, it will set Active and Stored DTC's. When a DTC is detected by the ACM, it will transmit a PCI bus message to the Instrument Cluster to illuminate the Airbag warning indicator. Whenever the Airbag warning indicator is illuminated, the ACM should be the first module to be interrogated.
If after replacing the ACM, any of the following codes are active, the ACM must be re-configured to match the vehicle equipment:
- MODULE NOT CONFIGURED FOR PAB OFF SWITCH
- PASSENGER AIRBAG ON - OFF SWITCH CIRCUIT OPEN
- PASSENGER AIRBAG ON - OFF SWITCH INDICATOR CIRCUIT OPEN
To properly configure the ACM, using the DRBIII®, select Miscellaneous from the Airbag system menu and follow instructions.