B0111

CIRCUIT DESCRIPTION
The driver rear side deployment loop consists the following components:
- An inflatable restraint side impact module-LR
- The side impact module-LR high circuits
- The side impact module-LR Low circuits

A shorting bar used within the side impact module-LR connector which will short together both side impact module-LR high circuit, and the side impact module-LR low circuit when the connector is disconnected. This will help to prevent unwanted deployment of the side impact module during servicing. During a side crash of sufficient force the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the side impact module-LR. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a diagnostic trouble code (DTC) will be stored in memory.

CONDITIONS FOR RUNNING THE DTC
Ignition 1 voltage is within the normal operating voltage range.

CONDITIONS FOR SETTING THE DTC
- DTC B0109 will set when the side impact module-LR deployment loop resistance is less than 1.3 ohms for 500 milliseconds.
- DTC B0110 will set when one of the following conditions occurs:
- Side impact module-LR high circuit is less than 2.4 volts and the side impact module-LR deployment loop is more than 6 ohms for 500 milliseconds.
- Side impact module-LR deployment loop resistance is more than 4.8 ohms for 500 milliseconds.
- DTC B0111 will set when one of the following conditions occur:
- Side impact module-LR high and/or low circuits is short to ground or short to voltage for 500 milliseconds.
- Side impact module-LR high circuit is less than 2.4 volts and side impact module-LR deployment loop resistance is less than 6 ohms for 500 milliseconds.

ACTION TAKEN WHEN THE DTC SETS
The SDM commands the AIR BAG indicator ON via Class 2 serial data.

CONDITIONS FOR CLEARING THE DTC
- The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
- A history DTC will clear once 255 malfunction free ignition cycles have occurred.

DIAGNOSTIC AIDS
The following are possible causes of the malfunction:
- A short between the side impact module-LR high and low circuits
- An open or a high resistance in the side impact module-LR high or low circuits
- A short to ground or a short to voltage in the side impact module-LR high or low circuits
- The side impact module-LR connector
- The SDM connector
- A malfunctioning side impact module-LR
- A malfunctioning SDM

Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Diagnostic Aids for Circuit Testing and Wiring Repair procedures.

TEST DESCRIPTION

Steps 1 - 4:

Steps 5 - 7:

Steps 8 - 9:

The number below refers to the step number on the diagnostic table.
4. Tests to see if the malfunction is caused by the side impact module-LR.
6. Tests to see what DTCs are present. If DTC B0109 is present, test the side impact module-LR for a short between high and low circuits. If DTC B0110 is present, test the side impact module-LR high and low circuits for an open and for high resistance. If DTC B0111 is present, test the side impact module-LR high and low circuits for a short to ground and for a short to voltage.