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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 HHR 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 DTC B0015

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B0015 01 : Left Front Seat Belt Pretensioner Deployment Loop Short to Battery

DTC B0015 02 : Left Front Seat Belt Pretensioner Deployment Loop Short to Ground

DTC B0015 04 : Left Front Seat Belt Pretensioner Deployment Loop Open Circuit

DTC B0015 0D : Left Front Seat Belt Pretensioner Deployment Loop Resistance Above Threshold

DTC B0015 0E : Left Front Seat Belt Pretensioner Deployment Loop Resistance Below Threshold

Diagnostic Fault Information

Circuit

Short to Ground

High Resistance

Open

Short to Voltage

Signal Performance

Seat Belt Pretensioner - LF High Circuit

B0015 02

B0015 0D

B0015 04

B0015 01

B0015 0E

Seat Belt Pretensioner - LF Low Circuit

B0015 02

B0015 0D

B0015 04

B0015 01

B0015 0E

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 - LF. 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 - LF connector which will short together both seat belt pretensioner - LF 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

B0015 01

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

B0015 02

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

B0015 04

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

B0015 0D

The seat belt pretensioner - LF deployment loop resistance is more than 3.9 ohms for 120 milliseconds.

B0015 0E

The seat belt pretensioner - LF 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 GMLAN serial data.
    • 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.

Diagnostic Aids

If there is more than one DTC set diagnose the open DTC first.

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

SIR Connector End Views

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Special Tools Required

    • J 38715-A SIR Driver/Passenger Load Tool
    • J 38715-30A SIR Load Tool Adapter

Circuit/System Testing
  1. Ignition OFF, disconnect the seat belt retractor pretensioner - LF connector. Then inspect the component and wiring harness sides of the in-line connector for the steering wheel coil module for damage or corrosion. Verify there is no damage or corrosion found.
    2. ⇒If the connector for the seat belt retractor pretensioner - LF is damaged, the seat belt retractor pretensioner - LF must be replaced.
    ⇒If the seat belt retractor pretensioner - LF wiring harness side connector is damaged, replace the harness side of the connector.
  2. Use J 38715-30A adapter to connect the J 38715-A SIR Driver/Passenger Load Tool to the harness side of the seat belt retractor pretensioner - LF wiring harness connector. Use the PASSENGER INFLATOR connector located on the load tool.
  3. With the ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0015 is set current.
    4. ⇒If DTC B0015 is history replace the seat belt retractor pretensioner - LF.
  4. With the ignition OFF, disconnect and remove both the J 38715-A and adapter. Then remove the SDM connector and inspect the SDM connector for corrosion or damage. Verify there is no damage or corrosion found.
    5. ⇒If the connector for the SDM is damaged, the SDM must be replaced.
    ⇒If the wiring harness side of the SDM connector is damaged, replace the harness side of the connector.
  5. Test the high and low circuits between the SDM and seat belt retractor pretensioner - LF for a short to voltage, short to ground, an open, or low resistance. Verify that a short to voltage, short to ground, or open/low resistance does not exist.
    6. ⇒If any of the above conditions are found make the appropriate repair.
  6. If circuits test good then replace the SDM.

Repair Instructions

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

    •  Seat Belt Retractor Pretensioner Replacement - Front
    •  SIR/SRS Wiring Repairs
    •  Control Module References for SDM replacement, setup, and programming.