GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Corvette 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 DTC B0012-B0019, B0027-B0030, B0039-B0041, B0045, B0046, B0056-B0076, B0085-B0089, B0106-B0114, B0118-B0124, or B3850-B3854

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 B0012: Passenger Frontal Deployment Loop (Stage 2) Resistance Low

DTC B0013: Passenger Frontal Deployment Loop (Stage 2) Open

DTC B0014: Passenger Frontal Deployment Loop (Stage 2) Voltage Out of Range

DTC B0016: Passenger Frontal Deployment Loop (Stage 1) Resistance Low

DTC B0017: Passenger Frontal Deployment Loop (Stage 1) Open

DTC B0018: Passenger Frontal Deployment Loop (Stage 1) Voltage Out of Range

DTC B0028: Passenger Front Side Deployment Loop Resistance Low

DTC B0029: Passenger Front Side Deployment Loop Open

DTC B0030: Passenger Front Side Deployment Loop Voltage Out of Range

DTC B0040: Driver Front Side Deployment Loop Resistance Low

DTC B0041:  Driver Front Side Deployment Loop Open

DTC B0045: Driver Front Side Deployment Loop Voltage Out of Range

DTC B0057: Passenger Front Pretensioner Deployment Loop Resistance Low

DTC B0058: Passenger Front Pretensioner Deployment Loop Open

DTC B0059: Passenger Front Pretensioner Deployment Loop Voltage Out of Range

DTC B0064: Driver Front Pretensioner Deployment Loop Resistance Low

DTC B0065: Driver Front Pretensioner Deployment Loop Open

DTC B0066: Driver Front Pretensioner Deployment Loop Voltage Out of Range

Diagnostic Fault Information

Circuit

Short to Ground

High Resistance

Open

Short to Voltage

Low resistance

IP Module - Stage 2 - Low Control

B0014

B0014

B0013

B0014

B0012

IP Module - Stage 2 - High Control

B0014

B0014

B0013

B0014

B0012

IP Module - Stage 1 - Low Control

B0019

B0019

B0017

B0019

B0016

IP Module - Stage 1 - High Control

B0019

B0019

B0017

B0019

B0016

Side Impact Module - Passenger - Low Control

B0030

B0030

B0029

B0030

B0028

Side Impact Module - Passenger - High Control

B0030

B0030

B0029

B0030

B0028

Side Impact Module - Driver - Low

B0045

B0045

B0041

B0045

B0040

Side Impact Module - Driver - High

B0045

B0045

B0041

B0045

B0040

Seat Belt Pretensioner - Passenger - Low Control

B0059

B0059

B0058

B0059

B0057

Seat Belt Pretensioner - Passenger - High Control

B0059

B0059

B0058

B0059

B0057

Seat Belt Pretensioner - Driver - Low Control

B0066

B0066

B0065

B0066

B0064

Seat Belt Pretensioner - Driver - High Control

B0066

B0066

B0065

B0066

B0064

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

B0014, B0019, B0030, B0045, B0059, B0066

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

B0013, B0017, B0029, B0041, B0058, B0065

    • The airbag module stage 1 or stage 2 high circuit is less than 2.4 volts and the airbag module stage 1 or stage 2 deployment loop is more than 6 ohms for 500 milliseconds.
    • The airbag module stage 1 or stage 2 deployment loop resistance is more than 4.8 ohms for 500 milliseconds.

B0014, B0019, B0030, B0045, B0059, B0066

    • The airbag module stage 1 or stage 2 high and/or low circuits is short to ground or short to voltage for 500 milliseconds.
    • The airbag module stage 1 or stage 2 high circuit is less than 2.4 volts and the airbag module stage 1 or stage 2 deployment loop resistance is less than 6 ohms for 500 milliseconds.

B0014, B0019, B0030, B0045, B0059, B0066

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

B0012, B0016, B0028, B0040, B0057, B0064

The airbag module deployment loop resistance is less than 1.3 ohms for 500 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.
    • A history DTC will clear once 255 malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

SIR Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

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

Scan Tool Reference

    •  Scan Tool Data List
    •  Scan Tool Data Definitions

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 airbag module
   • The SDM module
   • The airbag wiring harness connector
   • The SDM wiring harness connector

  1. Ignition OFF, disconnect the harness connector at the applicable airbag module.
  2. With the applicable adaptor, connect special tool J 38715-A .
  3. Ignition ON, with a scan tool, verify DTC is set as current.
    4. ⇒If DTC is not set or is set as history, replace the applicable airbag module.
  4. Ignition OFF, disconnect special tool J 38715-A and the applicable adaptor.
  5. Ignition ON, test for less than 1 volt between the applicable HI circuit and ground.
    6. ⇒If not the specified range, test the circuit for a short to voltage.
  6. Test for less than 1 volt between the applicable LOW circuit and ground.
    7. ⇒If not the specified range, test the circuit for a short to voltage.
  7. Ignition OFF, test for infinite resistance between the applicable HI circuit and ground.
    8. ⇒If not the specified range, test the circuit for a short to ground.
  8. Test for infinite resistance between the applicable LOW circuit and ground.
    9. ⇒If not the specified range, test the circuit for a short to ground.
  9. Disconnect the harness connector at the SDM.
  10. Test for less then 1 ohm of resistance between the SDM connector and the airbag module connector HI circuit.
    11. ⇒If not the specified range, test the circuit for an open/high resistance.
  11. Test for less then 1 ohm of resistance between the SDM connector and the airbag module connector LOW circuit.
    12. ⇒If not 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 after completing the diagnostic procedure.

    •  Inflatable Restraint Instrument Panel Module Replacement
    •  Driver and Passenger Seat Side Inflatable Restraint Module Replacement
    •  Inflatable Restraint Side Impact Module Wiring Harness Replacement
    •  Seat Belt Buckle Pretensioner Replacement
    •  SIR/SRS Wiring Repairs
    •  Control Module References for SDM replacement, setup, and programming