B0015

DTC B0014-B0045

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides and overview of each diagnostic category.



DTC Descriptors
DTC B0015 01
- Driver Pretensioner Deployment Loop Stage 2 Short to Battery

DTC B0015 02
- Driver Pretensioner Deployment Loop Short to Ground

DTC B0015 04
- Driver Pretensioner Deployment Loop Open Circuit

DTC B0015 0D
- Driver Pretensioner Deployment Loop Resistance Above Threshold

DTC B0015 0E
- Driver Pretensioner Deployment Loop Resistance Below Threshold

DTC B0019 01
- Passenger Frontal Deployment Loop Stage 1 Short to Battery

DTC B0019 02
- Passenger Frontal Deployment Loop Stage 1 Short to Ground

DTC B0019 04
- Passenger Frontal Deployment Loop Stage 1 Open Circuit

DTC B0019 0D
- Passenger Frontal Deployment Loop Stage 1 Resistance Above Threshold

DTC B0019 0E
- Passenger Frontal Deployment Loop Stage 1 Resistance Below Threshold

DTC B0020 01
- Passenger Frontal Deployment Loop Stage 2 Short to Battery

DTC B0020 02
- Passenger Frontal Deployment Loop Stage 2 Short to Ground

DTC B0020 04
- Passenger Frontal Deployment Loop Stage 2 Open Circuit

DTC B0020 0D
- Passenger Frontal Deployment Loop Stage 2 Resistance Above Threshold

DTC B0020 0E
- Passenger Frontal Deployment Loop Stage 2 Resistance Below Threshold

DTC B0022 01
- Passenger Pretensioner Deployment Loop Short to Battery

DTC B0022 02
- Passenger Pretensioner Deployment Loop Short to Ground

DTC B0022 04
- Passenger Pretensioner Deployment Loop Open Circuit

DTC B0022 0D
- Passenger Pretensioner Deployment Loop Resistance Above Threshold

DTC B0022 0E
- Passenger Pretensioner Deployment Loop Resistance Below Threshold




Diagnostic Fault Information






Circuit/System Description

If a malfunction is detected, a DTC will be stored in non-volatile memory. 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 air bag module. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity, shorts to ground, and shorts voltage. There are 2 shorting bars used within the module connector which will short together both 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, B0019 01 Stage 1, B0020 01 Stage 2, B0022 01

The air bag module high and/or low circuit is short to voltage for 120 milliseconds.

B0015 02, B0019 02 Stage 1, B0020 02 Stage 2, B0022 02

The air bag module high and/or low circuit is short to ground for 120 milliseconds.

B0015 04, B0019 04 Stage 1, B0020 04 Stage 2, B0022 04

The air bag module high and/or low circuit is open for 120 milliseconds.

B0015 0D, B0019 0D Stage 1, B0020 0D Stage 2, B0022 0D

The air bag module deployment loop resistance is more than 3.9 ohms for 120 milliseconds.

B0015 0E, B0019 0E Stage 1, B0020 0E Stage 2, B0022 0E

The air bag module 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 SDM will store a DTC, if event occurs system will still attempt deployments.



Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.



Diagnostic Aids

When a harness connector is disconnected, the high control and low control circuits are shorted together by the integral shorting bar. This should be taken into account when testing for faults on these circuits.


Reference Information
Schematic Reference

SIR Schematics ([1][2]Air Bag Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

SIR System Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information
Special Tools

J 38715-A Driver and Passenger SIR Load Tool


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:


* The pretensioner

* The air bag module

* The SDM module

* The air bag wiring harness connector

* The SDM wiring harness connector



1. Ignition OFF, disconnect the harness connector at the applicable air bag module. Refer to the applicable air bag module replacement procedure.
2. Ignition ON, test for less than 1 volt between the applicable high control circuit terminal and ground.

* I/P Module - Stage 1 terminal 18
* I/P Module - Stage 2 terminal 13


• If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.

3. Test for less than 1 volt between the applicable low control circuit terminal and ground.

* I/P Module - Stage 1 terminal 19
* I/P Module - Stage 2 terminal 12


• If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.

4. Ignition OFF, test for infinite resistance between the applicable high control circuit terminal and ground.

* I/P Module - Stage 1 terminal 18
* I/P Module - Stage 2 terminal 13


• If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.

5. Test for infinite resistance between the applicable low control circuit terminal and ground.

* I/P Module - Stage 1 terminal 19
* I/P Module - Stage 2 terminal 12


• If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.

6. With the applicable adaptor, connect in place of the air bag module.
7. Ignition ON, verify the DTC is set as current.

• If DTC is not set or is set as history, replace the applicable air bag module.

8. Ignition OFF, disconnect and the applicable adaptor.
9. Disconnect the harness connector at the SDM.
10. Test for less then 1 ohm between the following high control circuit terminals.

* I/P Module - Stage 1 terminal 18
* I/P Module - Stage 2 terminal 13


• If not within the specified range, test the circuit for an open/high resistance.

11. Test for less then 1 ohm between the following low control circuit terminals.

* I/P Module - Stage 1 terminal 19
* I/P Module - Stage 2 terminal 12


• If not within the specified range, test the circuit for an open/high resistance.

12. If all circuits test normal, replace the SDM.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Inflatable Restraint Instrument Panel Module Replacement (Solstice) (Service and Repair)Inflatable Restraint Instrument Panel Module Replacement (Sky) (Service and Repair)
* Seat Belt Retractor Pretensioner Replacement - Front (Removal and Replacement)
* SIR/SRS Wiring Repairs (Component Tests and General Diagnostics)
* Control Module References (Programming and Relearning) for SDM replacement, setup, and programming