GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 Astra 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 DTC B0014-B0045

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 B0014 01: Driver Side Airbag Squib Circuit High Voltage

DTC B0014 02: Driver Side Airbag Squib Circuit Low Voltage

DTC B0014 04: Driver Side Airbag Squib Circuit Open

DTC B0014 0D: Driver Side Airbag Squib Circuit High Resistance

DTC B0014 0E: Driver Side Airbag Squib Circuit Low Resistance

DTC B0014 0F: Driver Side Airbag Squib Circuit Shorted With Other Squib Circuit

DTC B0015 01: Driver Pretensioner Circuit High Voltage

DTC B0015 02: Driver Pretensioner Circuit Low Voltage

DTC B0015 04: Driver Pretensioner Circuit Open

DTC B0015 0D: Driver Pretensioner Circuit High Resistance

DTC B0015 0E: Driver Pretensioner Circuit Low Resistance

DTC B0015 0F: Driver Pretensioner Circuit Shorted With Other Squib Circuit

DTC B0016 01: Driver Curtain Airbag Squib Circuit High Voltage

DTC B0016 02: Driver Curtain Airbag Squib Circuit Low Voltage

DTC B0016 04: Driver Curtain Airbag Squib Circuit Open

DTC B0016 0D: Driver Curtain Airbag Squib Circuit High Resistance

DTC B0016 0E: Driver Curtain Airbag Squib Circuit Low Resistance

DTC B0016 0F: Driver Curtain Airbag Squib Circuit Shorted With Other Squib Circuit

DTC B0019 01: Passenger Airbag Squib Circuit (Stage 1) High Voltage

DTC B0019 02: Passenger Airbag Squib Circuit (Stage 1) Low Voltage

DTC B0019 04: Passenger Airbag Squib Circuit (Stage 1) Open

DTC B0019 0D: Passenger Airbag Squib Circuit (Stage 1) High Resistance

DTC B0019 0E: Passenger Airbag Squib Circuit (Stage 1) Low Resistance

DTC B0019 0F: Passenger Airbag Squib Circuit (Stage 1) Shorted With Other Squib Circuit

DTC B0020 01: Passenger Airbag Squib Circuit (Stage 2) High Voltage

DTC B0020 02: Passenger Airbag Squib Circuit (Stage 2) Low Voltage

DTC B0020 04: Passenger Airbag Squib Circuit (Stage 2) Open

DTC B0020 0D: Passenger Airbag Squib Circuit (Stage 2) High Resistance

DTC B0020 0E: Passenger Airbag Squib Circuit (Stage 2) Low Resistance

DTC B0020 0F: Passenger Airbag Squib Circuit (Stage 2) Shorted With Other Squib Circuit

DTC B0021 01: Passenger Side Airbag Squib Circuit High Voltage

DTC B0021 02: Passenger Side Airbag Squib Circuit Low Voltage

DTC B0021 04: Passenger Side Airbag Squib Circuit Open

DTC B0021 0D: Passenger Side Airbag Squib Circuit High Resistance

DTC B0021 0E: Passenger Side Airbag Squib Circuit Low Resistance

DTC B0021 0F: Passenger Side Airbag Squib Circuit Shorted With Other Squib Circuit

DTC B0022 01: Passenger Pretensioner Circuit High Voltage

DTC B0022 02: Passenger Pretensioner Circuit Low Voltage

DTC B0022 04: Passenger Prentensioner Circuit Open

DTC B0022 0D: Passenger Pretensioner Circuit High Resistance

DTC B0022 0E: Passenger Pretensioner Circuit Low Resistance

DTC B0022 0F: Passenger Pretensioner Circuit Shorted With Other Squib Circuit

DTC B0023 01: Passenger Curtain Airbag Squib Circuit High Voltage

DTC B0023 02: Passenger Curtain Airbag Squib Circuit Low Voltage

DTC B0023 04: Passenger Curtain Airbag Squib Circuit Open

DTC B0023 0D: Passenger Curtain Airbag Squib Circuit High Resistance

DTC B0023 0E: Passenger Curtain Airbag Squib Circuit Low Resistance

DTC B0023 0F: Passenger Curtain Airbag Squib Circuit Shorted With Other Squib Circuit

Diagnostic Fault Information

Circuit

Short to Ground

Low Resistance

High Resistance

Open

Short to Voltage

Side Impact Module - Left - High Control

B0014 02

B0014 0E

B0014 0D

B0014 04

B0014 01

Side Impact Module - Left - Low Control

B0014 02

B0014 0E

B0014 0D

B0014 04

B0014 01

Seat Belt Pretensioner - Driver High Control

B0015 02

B0015 0E

B0015 0D

B0015 04

B0015 01

Seat Belt Pretensioner - Driver - Low Control

B0015 02

B0015 0E

B0015 0D

B0015 04

B0015 01

Roof Rail Module - Left - High Control

B0016 02

B0016 0E

B0016 0D

B0016 04

B0016 01

Roof Rail Module - Left - Low Control

B0016 02

B0016 0E

B0016 0D

B0016 04

B0016 01

IP Module - Stage 1 - High Control

B0019 02

B0019 0E

B0019 0D

B0019 04

B0019 01

IP Module - Stage 1 - Low Control

B0019 02

B0019 0E

B0019 0D

B0019 04

B0019 01

IP Module - Stage 2 - High Control

B0020 02

B0020 0E

B0020 0D

B0020 04

B0020 01

IP Module - Stage 2 - Low Control

B0020 02

B0020 0E

B0020 0D

B0020 04

B0020 01

Side Impact Module - Right - High Control

B0021 02

B0021 0E

B0021 0D

B0021 04

B0021 01

Side Impact Module - Right - Low Control

B0021 02

B0021 0E

B0021 0D

B0021 04

B0021 01

Seat Belt Pretensioner - Passenger - High Control

B0022 02

B0022 0E

B0022 0D

B0022 04

B0022 01

Seat Belt Pretensioner - Passenger - Low Control

B0022 02

B0022 0E

B0022 0D

B0022 04

B0022 01

Roof Rail Module - Right - High Control

B0023 02

B0023 0E

B0023 0D

B0023 04

B0023 01

Roof Rail Module - Right - Low Control

B0023 02

B0023 0E

B0023 0D

B0023 04

B0023 01

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 an inflatable restraint module. 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

Any of the following conditions must exist for 1 second:

B0014 01, B0015 01, B0016 01, B0019 01, B0020 01, B0021 01, B0022 01, B0023 01

The inflatable restraint module high and/or low circuit is shorted to voltage.

B0014 02, B0015 02, B0016 02, B0019 02, B0020 02, B0021 02, B0022 02, B0023 02

The inflatable restraint module high and/or low circuit is shorted to ground for 120 milliseconds.

B0014 04, B0015 04, B0016 04, B0019 04, B0020 04, B0021 04, B0022 04, B0023 04

The inflatable restraint module high and/or low circuit is open for 120 milliseconds.

B0014 0D, B0015 0D, B0016 0D, B0019 0D, B0020 0D, B0021 0D, B0022 0D, B0023 0D

The inflatable restraint module deployment loop resistance is greater than 3.9 ohms.

B0014 0E, B0015 0E, B0016 0E, B0019 0E, B0020 0E, B0021 0E, B0022 0E, B0023 0E

The inflatable restraint module deployment loop resistance is less than 1.6 ohms.

B0014 0F, B0015 0F, B0016 0F, B0019 0F, B0020 0F, B0021 0F, B0022 0F, B0023 0F

An inflatable restraint module deployment loop high or low control circuit is shorted to another deployment loop high or low control circuit.

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 system will still attempt deployments.

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

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

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

Scan Tool Reference

Control Module References for scan tool information

Diagnostic Aids

Deployment loop DTCs, B0012 - B0045 with a symptom of 0F, are to be tested for a short between the one deployment loop high or low control circuits to the other deployment loop high or low control circuits. If the condition is found, make the appropriate repair.

Circuit/System Testing

Important: Refer to SIR Service Precautions.

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

   • Pretensioner
   • Inflatable restraint module
   • SDM module
   • Inflatable restraint module wiring harness connector
   • SDM wiring harness connector

    Important: The connector and 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 shorting-bars within the module connector allowing the deployment circuit to operate properly.

  1. Verify that the appropriate inflatable restraint module connector and the connector position assurance (CPA) are engaged.
    2. ⇒If the above condition is not found, make the appropriate repair.
  2. Ignition OFF, disconnect the appropriate inflatable restraint module harness connector.
  3. Ignition ON, verify the appropriate scan tool Squib Circuit Resistance parameter is infinite resistance.
    4. ⇒If less than the specified value, test for a short between the high control circuit and low control circuit or for a short to ground. If the circuits test normal replace the SDM.
  4. Ignition OFF, at the appropriate inflatable restraint module harness connector, connect a fused jumper wire between high control circuit terminal and the low control circuit terminal listed below:
    5. • I/P module stage 1 terminal 1 X1 and terminal 2 X1
    • I/P module stage 2 terminal 1 X2 and terminal 2 X2
    • Left roof rail module terminal 1 X2 and terminal 2 X2
    • Right roof rail module terminal 1 X2 and terminal 2 X2
    • Left side impact module terminal 1 and terminal 2
    • Right side impact module terminal 1 and terminal 2
    • Left seatbelt pretensioner terminal 1 and terminal 2
    • Right seatbelt pretensioner terminal 1 and terminal 2
  5. Ignition ON, verify the appropriate Squib Circuit Resistance parameter is less than 1.6 ohms.
    6. ⇒If greater than the specified range, test the appropriate high control circuit and low control circuit for an open/high resistance. If the circuits test normal, replace the SDM.
  6. Ignition OFF, remove the fused jumper wire.
  7. Disconnect the harness connector at the SDM.
  8. Ignition ON, test for less than 1 volt between the appropriate high control circuit terminal listed below and ground:
    9. • I/P module stage 1 high control circuit at the SDM terminal 15 X1
    • I/P module stage 2 high control circuit at the SDM terminal 18 X1
    • Left roof rail module high control circuit at the SDM terminal 21 X2
    • Right roof rail module high control circuit at the SDM terminal 17 X2
    • Left side impact module high control circuit at the SDM terminal 28 X2
    • Right side impact module high control circuit at the SDM terminal 24 X2
    • Left seatbelt pretensioner high control circuit at the SDM terminal 25 X2
    • Right seatbelt pretensioner high control circuit at the SDM terminal 20 X2
    ⇒If greater than the specified range, test the high control circuit for a short to voltage.
  9. Test for less than 1 volt between the appropriate low control circuit terminal listed below and ground:
    10. • I/P module stage 1 low control circuit at the SDM terminal 16 X1
    • I/P module stage 2 low control circuit at the SDM terminal 17 X1
    • Left roof rail module low control circuit at the SDM terminal 22 X2
    • Right roof rail module low control circuit at the SDM terminal 18 X2
    • Left side impact module low control circuit at the SDM terminal 27 X2
    • Right side impact module low control circuit at the SDM terminal 23 X2
    • Left seatbelt pretensioner low control circuit at the SDM terminal 26 X2
    • Right seatbelt pretensioner low control circuit at the SDM terminal 19 X2
    ⇒If greater than the specified range, test the low control circuit for a short to voltage.
  10. Ignition OFF, test for infinite resistance between the appropriate high control circuit terminal listed below and ground:
    11. • I/P module stage 1 high control circuit at the SDM terminal 15 X1
    • I/P module stage 2 high control circuit at the SDM terminal 18 X1
    • Left roof rail module high control circuit at the SDM terminal 21 X2
    • Right roof rail module high control circuit at the SDM terminal 17 X2
    • Left side impact module high control circuit at the SDM terminal 28 X2
    • Right side impact module high control circuit at the SDM terminal 24 X2
    • Left seatbelt pretensioner high control circuit at the SDM terminal 25 X2
    • Right seatbelt pretensioner high control circuit at the SDM terminal 20 X2
    ⇒If less than the specified value, test the high control circuit for a short to ground.
  11. Test for infinite resistance between the appropriate low control circuit terminal listed below and ground:
    12. • I/P module stage 1 low control circuit at the SDM terminal 16 X1
    • I/P module stage 2 low control circuit at the SDM terminal 17 X1
    • Left roof rail module low control circuit at the SDM terminal 22 X2
    • Right roof rail module low control circuit at the SDM terminal 18 X2
    • Left side impact module low control circuit at the SDM terminal 27 X2
    • Right side impact module low control circuit at the SDM terminal 23 X2
    • Left seatbelt pretensioner low control circuit at the SDM terminal 26 X2
    • Right seatbelt pretensioner low control circuit at the SDM terminal 19 X2
    ⇒If greater than the specified range, test the low control circuit for a short to ground.
  12. If all circuits test normal, replace the appropriate inflator restraint module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Instrument Panel Inflatable Restraint Module Replacement
    •  Roof Side Rail Inflatable Restraint Module Replacement
    •  Seat Belt Retractor Pretensioner Replacement - Front
    •  SIR/SRS Wiring Repairs
    •  Control Module References for SDM replacement, setup, and programming