To the top of the document
Orlando
   
GMDE Start Page Load static TOC Load dynamic TOC Help?

Air Bag Indicator Circuit Malfunction — Passenger

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Passenger Air Bag OFF Indicator Control

2

2*

4

-

Passenger Air Bag ON Indicator Control

3

3*

5

-

Passenger Air Bag Disable Indicator Ground

--

1

1

--

1. Both indicators always OFF

2. The OFF indicator will not illuminate

3. The ON indicator will not illuminate

4. The OFF indicator always ON

5. The ON indicator always ON

* High resistance may cause the appropriate indicator to illuminate less bright than normal

Circuit/System Description

The passenger air bag ON/OFF indicators are used to notify the driver when the passenger presence system has enabled or disabled the passenger instrument panel air bag. When the ignition is turned ON, the ignition voltage is supplied to the passenger presence module. When the inflatable restraint sensing and diagnostic module (SDM) receives the appropriate serial data message from the passenger presence module the SDM will then provide voltage to the appropriate indicator.

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Note: The passenger air bag 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. Ignition ON.
  2. With a scan tool command the passenger air bag ON indicator and passenger air bag OFF indicator ON and OFF. The respective indicators should turn ON and OFF as commanded.

Circuit/System Testing

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

   • Passenger air bag disable on/off indicator.
   • Passenger air bag disable on/off indicator wiring harness.

  1. Ignition OFF.
  2. Disconnect the harness connector at the P14 passenger air bag disable indicator.
  3. Test for less than 10 Ω between the ground circuit terminal 4 and ground.
    4. [ARW-LISTFAIL]

  4. If 10 Ω or greater

    Repair the open/high resistance in the circuit.

    5. [/ARW-LISTFAIL][ARW-LISTPASS]

  5. If less than 10 Ω

    6. [/ARW-LISTPASS]
  6. Ignition ON.
  7. With a scan tool, command the passenger air bag OFF indictor OFF.
  8. Test for less than 11 V between the control circuit terminal 5 and ground.
    9. [ARW-LISTFAIL]

  9. If 11 V or greater

    10. [/ARW-LISTFAIL]
    6.1. Ignition OFF.
    6.2. Disconnect the harness connector at the K36 SDM.
    6.3. Ignition ON.
    6.4. Test for less than 1 V between the control circuit and ground.
    [ARW-LISTFAIL]

  10. If 1 V or greater, repair the short to voltage on the circuit.

  11. If less than 1 V, replace the K36 SDM.

    12. [/ARW-LISTFAIL] [ARW-LISTPASS]

  12. If less than 11 V

    13. [/ARW-LISTPASS]
  13. With a scan tool, command the passenger air bag OFF indicator ON.
  14. Test for greater than 11 V between the control circuit terminal 5 and ground.
    15. [ARW-LISTFAIL]

  15. If 11 V or less

    16. [/ARW-LISTFAIL]
    8.1. Disconnect the harness connector at the K36 SDM.
    8.2. Test for infinite resistance between the control circuit and ground.
    [ARW-LISTFAIL]

  16. If less than infinite resistance, repair the short to ground on the circuit.

    17. [/ARW-LISTFAIL]
    8.3. Test for less than 2 Ω in each control circuit end to end.
    [ARW-LISTFAIL]

  17. If 2 Ω or greater, repair the open/high resistance in the circuit.

  18. If less than 2 Ω, replace the K36 SDM.

    19. [/ARW-LISTFAIL] [ARW-LISTPASS]

  19. If greater than 11 V

    20. [/ARW-LISTPASS]
  20. With a scan tool, command the passenger air bag ON indicator OFF.
  21. Test for less than 11 V between the control circuit terminal 2 and ground.
    22. [ARW-LISTFAIL]

  22. If 11 V or greater

    23. [/ARW-LISTFAIL]
    10.1. Ignition OFF.
    10.2. Disconnect the harness connector at the K36 SDM.
    10.3. Ignition ON.
    10.4. Test for less than 1 V between the control circuit and ground.
    [ARW-LISTFAIL]

  23. If 1 V or greater, repair the short to voltage on the circuit.

  24. If less than 1 V, replace the K36 SDM.

    25. [/ARW-LISTFAIL] [ARW-LISTPASS]

  25. If less than 11 V

    26. [/ARW-LISTPASS]
  26. With a scan tool, command the passenger air bag ON indicator ON.
  27. Test for greater than 11 V between the control circuit terminal 2 and ground.
    28. [ARW-LISTFAIL]

  28. If 11 V or less

    29. [/ARW-LISTFAIL]
    12.1. Disconnect the harness connector at the K36 SDM.
    12.2. Test for infinite resistance between the control circuit and ground.
    [ARW-LISTFAIL]

  29. If less than infinite resistance, repair the short to ground on the circuit.

    30. [/ARW-LISTFAIL]
    12.3. Test for less than 2 Ω in each control circuit end to end.
    [ARW-LISTFAIL]

  30. If 2 Ω or greater, repair the open/high resistance in the circuit.

  31. If less than 2 Ω, replace the K36 SDM.

    32. [/ARW-LISTFAIL] [ARW-LISTPASS]

  32. If greater than 11 V

    33. [/ARW-LISTPASS]
  33. Replace the P14 passenger air bag disable indicator.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

    •  Inflatable Restraint Instrument Panel Compartment Module Disable Switch Replacement
    • Control Module References for SDM replacement, programming and setup
   


© Copyright Chevrolet. All rights reserved