For 1990-2009 cars

### 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: Driver Pretensioner Deployment State 1 Loop Short to Battery
DTC B0015 02: Driver Pretensioner Deployment State 1 Loop Short to Ground
DTC B0015 08: Driver Pretensioner Deployment State 1 Loop Single Invalid
DTC B0015 0D: Driver Pretensioner Deployment State 1 Loop Resistance Above Threshold
DTC B0015 0E: Driver Pretensioner Deployment State 1 Loop Resistance Below Threshold

### Diagnostic Fault Information

Circuit | Short to Ground | High Resistance | Low Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | --- | ---
Seat Belt Pretensioner Driver High Control | B0015 02 | B0015 0D | B0015 0E | B0015 01 | B0015 08
Seat Belt Pretensioner Driver Low Control | B0015 02 | B0015 0D | B0015 0E | B0015 01 | B0015 08
Seat Belt Pretensioner - Passenger High Control | B0022 02 | B0022 0D | B0022 0E | B0022 01 | B0022 08
Seat Belt Pretensioner - Passenger Low Control | B0022 02 | B0022 0D | B0022 0E | B0022 01 | B0022 08

### 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 - driver. 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 - driver connector which will short together both seat belt pretensioner - driver 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 - driver high and/or low control circuit is shorted to voltage for 2 seconds.

#### B0015 02

The seat belt pretensioner - driver high and/or low control circuit is shorted to ground for 2 seconds.

#### B0015 08

The seat belt pretensioner - driver high and/or low control circuit is invalid during SDM initialization.

#### B0015 0D

The seat belt pretensioner - driver deployment loop resistance is more than 5.5 ohms for 2 seconds.

#### B0015 0E

The seat belt pretensioner - driver deployment loop resistance is less than 1.1 ohms for 2 seconds.

### Action Taken When the DTC Sets

• | The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.

• | The SDM will store a DTC, however if an event occurs the system will still attempt deployments.

### Conditions for Clearing the DTC

• | The condition for setting the DTC is no longer present.

• | A history DTC will clear after 100 fault-free ignition cycles.

### Reference Information

#### Schematic Reference

SIR Schematics

#### Connector End View Reference

Component Connector End Views

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

Control Module References for scan tool information

### Circuit/System Testing

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

• | Seat belt buckle pretensioner - driver

• | SDM module

• | Seat belt buckle pretensioner - driver wiring harness connector

• | SDM wiring harness connector

Important: The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the shoring-bars within the connector allowing the deployment circuit to operate properly.

1. Ignition OFF, disconnect the harness connector at the driver seat belt buckle pretensioner.
2. Ignition ON, verify that the scan tool Driver Pretensioner Circuit Resistance parameter is greater than 5.4 ohms at the control circuits.

⇒ | If less than the specified range, test the control circuits for a short to ground. If the circuits test normal, replace the SDM.

3. Connect a fused jumper wire in between the seat belt buckle pretensioner terminal 1 and terminal 2.
4. Ignition ON, verify that the scan tool Driver Pretensioner Circuit Resistance parameter is less than 1.2 ohms at the control circuits.

⇒ | If greater than the specified range, test the control circuits for a short to voltage or an open/high resistance. If the circuits test normal, replace the SDM.

5. If all circuits test normal, replace the driver seat belt buckle pretensioner.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Seat Belt Buckle Pretensioner Replacement.

• | Control Module References for SDM replacement, setup, and programming