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Circuit/System Testing

Refer to SIR Disabling and Enabling .

Refer to SIR Service Precautions .

NOTE:

When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.

  • P14 Passenger Air Bag Disable Indicator
  • K36 Inflatable Restraint Sensing and Diagnostic Module
  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 1 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • Go to next step: If less than 10 Ω 
  4. Connect a test lamp between the control circuit terminal 5 and ground.
  5. Ignition ON vehicle in Service Mode.
  6. Verify with a scan tool, command the Passenger Seat Belt Reminder Indicator ON and OFF, the test lamp should turn ON and OFF while changing between the commanded states.
    • If the test lamp is always on 
    1. Ignition OFF.
    2. Verify the SIR system is disabled.
    3. Disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module.
    4. Ignition ON, vehicle in Service Mode.
    5. Test for less than 1 V between the control circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
    • If the test lamp is always off 
    1. Ignition OFF.
    2. Verify the SIR system is disabled.
    3. Disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module.
    4. Test for infinite resistance between the control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
    5. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
    • Go to next step: If test lamp turns on and off while changing between the commanded states 
  7. Test or replace the P14 Passenger Air Bag Disable Indicator.
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