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 component/connector.

P14 Instrument Panel Airbag Arming Status Display
K36 Restraints Control Module

Ignition OFF, disconnect the harness connector at the P14 Instrument Panel Airbag Arming Status Display. It may take up to 2 min for all vehicle systems to power down.
Ignition ON, Verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
- If the test lamp does not illuminate and the circuit fuse is good
1. Ignition OFF.
2. Test for less than 2 Ω in the B+ circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, test or replace the X51A Instrument Panel Wiring Harness Junction Block.
  - If the test lamp does not illuminate and the circuit fuse is open
1. Ignition OFF.
2. Test for infinite resistance between the B+ Circuit terminal 1 and ground
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance, test or replace the X51A Instrument Panel Wiring Harness Junction Block.
- Go to next step: If the test lamp illuminates
Connect a test lamp between the low reference control circuit terminal 4 and B+, ignition ON.
Verify the test lamp is OFF when commanding the Passenger Seat Belt Reminder Indicator OFF with a scan tool.
- If the test lamp is ON
1. Ignition OFF.
2. Verify the SIR system is disabled.
3. Disconnect the harness connector at the K36 Restraints Control Module.
4. Test for a short to ground on circuit 5234.
  - If short to ground is found, repair the fault on the circuit.
  - If short to ground is not found, replace the K36 Restraints Control Module.
- Go to next step: If test lamp is OFF
Verify the test lamp is ON when commanding the Passenger Seat Belt Reminder Indicator ON with a scan tool.
- If the test lamp is OFF
1. Ignition OFF.
2. Verify the SIR system is disabled.
3. Disconnect the harness connector at the K36 Restraints Control Module.
4. Test for a short to voltage on circuit 5234.
  - If short to voltage is found, repair the fault 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 Restraints Control Module.
- Go to next step: If test lamp is ON
Test or replace the P14 Instrument Panel Airbag Arming Status Display.
Verify the DTC does not set.
- If the DTC sets
  Replace the K36 Restraints Control Module.
- Go to next step: If the DTC does not set
All OK.