Orlando

Air Bag Indicator Circuit Malfunction - Passenger

When the ignition switch is turned to ON, the inflatable restraint sensing and diagnostic module (SDM) continuously checks the airbag enable/disable switch position switch and circuit defect by letting regular voltage flow through the switch circuit and verifying the current. The passenger airbag switch controls when the air bag is enabled or disabled and notifies the driver when the instrument panel inflater module is enabled or disabled using the passenger air bag ON/OFF indicators. When the sensing and diagnostic module (SDM) receives the signal from the passenger airbag disable switch (on/off), the SDM will then provide voltage to the appropriate indicator.

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Note: The passenger airbag ON and OFF indicators may not operate as expected if there are supplemental inflatable restraint (SIR) DTCs. Repair all SIR DTCs before proceeding with this diagnostic.

1. Observe the scan tool Passenger Air Bag Disabled Switch parameter while commanding the passenger airbag ON and OFF by using the S40 Passenger Air Bag Disable Switch. The value should change between On and Off. If the value does not change refer to Passenger Air Bag Disable Switch Malfunction.
2. With the Passenger Air Bag Disable Switch in the OFF position, verify the passenger air bag OFF indicator is illuminated. If it is not refer to Passenger Air Bag Indicator Malfunction.
3. With the Passenger Air Bag Disable Switch in the ON position, verify the passenger air bag ON indicator is illuminated. If it is not refer to Passenger Air Bag Indicator Malfunction.

Passenger Airbag Disable Switch Malfunction

1. Ignition OFF, disconnect the wiring harness plug at the S40 Passenger Air Bag Disable Switch.
2. Test for less than 30 Ω between the ground circuit terminal 3 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

3. Ignition ON, test for 1.8-2.4 V between the signal circuit terminal 1 and ground.

⇒	If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

⇒	If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

4. If all circuits test normal, replace the S40 Passenger Air Bag Disable Switch.

Passenger Airbag Indicator Malfunction

Note: removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected.

•	P14 Passenger Air Bag Disable Indicator.

•	P14 Passenger Air Bag Disable Indicator wiring harness.

1. Ignition OFF, disconnect the harness connector at the P14 Passenger Air Bag Disable Indicator.
2. Test for less than 5 Ω between the ground circuit terminal 4 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, with the passenger seat unoccupied, test for less than 0.3 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 6 and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

4. With the passenger seat occupied, test for greater than 11 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 6 and ground.

⇒	If lower than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

5. Ignition ON, with the airbag disable switch in the OFF position, test for less than 0.3 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 2 and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

6. With the airbag disable switch in the OFF position, test for greater than 11 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 5 and ground.

⇒	If lower than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

7. Ignition ON, with the airbag disable switch in the ON position, test for less than 0.3 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 5 and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

8. With the airbag disable switch in the OFF position, test for greater than 11 V between the P14 Passenger Air Bag Disable Indicator harness connector terminal 2 and ground.

⇒	If lower than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

9. If all circuits test normal, replace the P14 Passenger Air Bag Disable Indicator.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.