Circuit/System Testing

WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Refer to SIR Service Precautions .

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

The front end sensor.
The SDM module
The front end sensor wiring harness connector.
The SDM wiring harness connector.

Ignition OFF, disconnect the harness connector at the RF inflatable restraint side impact module.
With the J-38715-30A SIR load tool adapter, connect J 38715-A in place of the RF inflatable restraint side impact module. See Special Tools .
Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
- If DTC is not set or is set as history, replace the RF inflatable restraint side impact module.
Ignition OFF, disconnect J 38715-A and the J-38715-30A SIR load tool adapter. See Special Tools .
Disconnect the harness connector at the SDM.
Ignition ON, test for less than 1 volt between the RF inflatable restraint side impact module low control circuit terminal A and ground.
- If not within the specified range, test the circuit for a short to voltage.
Ignition OFF, test for infinite resistance between the RF inflatable restraint side impact module high control circuit terminal B and ground.
- If not within the specified range, test the circuit for a short to ground.
Test for less then 1 ohm between the RF inflatable restraint side impact module high control circuit terminal B and the SDM terminal 21.
- If not within the specified range, test the circuit for an open/high resistance.
Test for less then 1 ohm between the RF inflatable restraint side impact module low control circuit terminal A and the SDM terminal 20.
- If not within the specified range, test the circuit for an open/high resistance
If all circuits test normal, replace the SDM.