B0022

DTC B0022

DTC DESCRIPTORS

DTC B0022 01
Right Front Seat Belt Pretensioner Deployment Loop Short to Battery

DTC B0022 02
Right Front Seat Belt Pretensioner Deployment Loop Short to Ground

DTC B0022 04
Right Front Seat Belt Pretensioner Deployment Loop Open Circuit

DTC B0022 0D
Right Front Seat Belt Pretensioner Deployment Loop Resistance Above Threshold

DTC B0022 0E
Right Front Seat Belt Pretensioner Deployment Loop Resistance Below Threshold

DIAGNOSTIC FAULT INFORMATION






IMPORTANT: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Testing and Inspection

CIRCUIT/SYSTEM DESCRIPTION
During a side or frontal 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 seat belt pretensioner - RF. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. A shorting bar used within the seat belt pretensioner - RF connector which will short together both seat belt pretensioner - RF high and low circuits when the connector is disconnected, this will help to prevent unwanted deployment of the inflator module during servicing.

CONDITIONS FOR RUNNING THE DTC
Ignition voltage is between 9-16 volts.

CONDITIONS FOR SETTING THE DTC

B0022 01
The seat belt pretensioner - RF high and/or low circuit is short to voltage for 120 milliseconds.

B0022 02
The seat belt pretensioner - RF high and/or low circuit is short to ground for 120 milliseconds.

B0022 04
The seat belt pretensioner - RF high and/or low circuit is open for 120 milliseconds.

B0022 0D
The seat belt pretensioner - RF deployment loop resistance is more than 3.9 ohms for 120 milliseconds.

B0022 0E
The seat belt pretensioner - RF deployment loop resistance is less than 1.1 ohms for 120 milliseconds.

ACTION TAKEN WHEN THE DTC SETS
- The SDM commands the AIR BAG indicator ON via serial data communications.
- The SIR System is disabled and no deployments are allowed.

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.

CIRCUIT/SYSTEM TESTING
1. Ignition OFF, disconnect the seat belt pretensioner - RF connector located under the passenger front seat.
- The seat belt pretensioner - RF
- The SDM module
- The seat belt pretensioner - RF wiring harness connector
- The SDM wiring harness connector

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

2. Use J 38715-60 adapter to connect the J 38715-A to the harness side of the seat belt pretensioner - RF connector. Use the PASSENGER INFLATOR and STEERING WHEEL connector located on the load tool.
3. Ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0022 is set history.
- If DTC B0022 is current turn OFF the ignition and remove the SDM connector.
- Test and repair both seat belt pretensioner - RF high and low circuits for a short to voltage, short to ground, or open/low resistance. If all circuits test normal then, replace the SDM.
4. If DTC B0022 is history replace the seat belt pretensioner - RF.

REPAIR INSTRUCTIONS

IMPORTANT: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

- Seat Belt Buckle Pretensioner Replacement
- Control Module References for SDM replacement, setup, and programming