B0033
DTC B0014-B0045
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.
DTC Descriptors
DTC B0014 01
- Driver Seat Side Air Bag Deployment Loop Short to Battery
DTC B0014 02
- Driver Seat Side Air Bag Deployment Loop Short to Ground
DTC B0014 04
- Driver Seat Side Air Bag Deployment Loop Open Circuit
DTC B0014 0D
- Driver Seat Side Air Bag Deployment Loop Resistance Above Threshold
DTC B0014 0E
- Driver Seat Side Air Bag Deployment Loop Resistance Below Threshold
DTC B0015 01
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Battery
DTC B0015 02
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0015 04
- Driver Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0015 0D
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0015 0E
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0016 01
- Left Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0016 02
- Left Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0016 04
- Left Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0016 0D
- Left Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0016 0E
- Left Roof Rail Air Bag Deployment Loop Resistance Below Threshold
DTC B0019 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0019 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0019 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0019 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0019 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0020 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0020 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0020 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0020 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0020 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
DTC B0021 01
- Passenger Seat Side Air Bag Deployment Loop Short to Battery
DTC B0021 02
- Passenger Seat Side Air Bag Deployment Loop Short to Ground
DTC B0021 04
- Passenger Seat Side Air Bag Deployment Loop Open Circuit
DTC B0021 0D
- Passenger Seat Side Air Bag Deployment Loop Resistance Above Threshold
DTC B0021 0E
- Passenger Seat Side Air Bag Deployment Loop Resistance Below Threshold
DTC B0022 01
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Short to Battery
DTC B0022 02
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0022 04
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0022 0D
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0022 0E
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0023 01
- Right Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0023 02
- Right Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0023 04
- Right Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0023 0D
- Right Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0023 0E
- Right Roof Rail Air Bag Deployment Loop Resistance Below Threshold
Diagnostic Fault Information
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 air bag 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 prevent unwanted deployment of the inflator module during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 V.
Conditions for Setting the DTC
B0014 01, B0015 01, B0016 01, B0019 01, B0020 01, B0021 01, B0022 01, B0023 01
The air bag or seat belt retractor pretensioner high and/or low control circuit is shorted to voltage for 120 milliseconds.
B0014 02, B0015 02, B0016 02, B0019 02, B0020 02, B0021 02, B0022 02, B0023 02
The air bag or seat belt retractor pretensioner high and/or low control 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 air bag or seat belt retractor pretensioner high and/or low control circuit is open for 120 milliseconds.
B0014 0D, B0015 0D, B0016 0D, B0019 0D, B0020 0D, B0021 0D, B0022 0D, B0023 0D
The air bag or seat belt retractor pretensioner deployment loop resistance is greater than 3.9 ohms for 120 milliseconds.
B0014 0E, B0015 0E, B0016 0E, B0019 0E, B0020 0E, B0021 0E, B0022 0E, B0023 0E
The air bag or seat belt retractor pretensioner deployment loop resistance is less than 1.1 ohm for 120 milliseconds.
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 no longer exists.
* A history DTC will clear once 100 fault-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.
* This DTC usually indicates a poor connection or a wiring malfunction between the SDM and the deployment loop.
Reference Information
Schematic Reference
SIR Schematics [1][2]Air Bag Systems
Connector End View Reference
Component Connector End Views Connector End Views By Name
Description and Operation
SIR System Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Programming and Relearningfor scan tool information
Special Tools Required
J 38715-A Driver and Passenger SIR Load Tool
Circuit/System Verification
Note: Refer to SIR Service Precautions Service Precautions
Inspect all terminals for damage or corrosion when disconnecting connectors. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
* Seat belt retractor pretensioner
* Passenger instrument panel air bag
* Seat Side air bag
* Roof rail air bag
* SDM
* SDM wiring harness connector
* Seat belt retractor pretensioner connector
* Passenger instrument panel air bag wiring harness connector
* Seat Side Air Bag wiring harness connector
* Roof rail air bags wiring harness connector
Note: 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 shorting-bars within the connector allowing the deployment circuit to operate properly.
If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.
Observe the scan tool Deployment Loop Resistance parameters while moving the harness near each connector listed below. The reading should stay consistently between 1.7 and 4.2 ohm without any drop outs or spikes.
* Passenger instrument panel air bag
* Roof rail air bag
* Seat side air bag
* Seat belt retractor pretensioner
* Any inline harness
* SDM
If the reading is erratic while moving the harness, perform the following;
* Inspect each connector terminal for damage or corrosion and repair as necessary.
* Apply Nyogel lubricant 760G to each connector terminal.
* Insure each connector and CPA is correctly seated.
Circuit/System Testing
DTC B0014-B0018 or B0021-B0045
1. Ignition OFF, disconnect the scan tool and disconnect the harness connector at the appropriate air bag or seat belt retractor pretensioner.
2. With the appropriate load tool adaptor, connect special tool J 38715-A in place of the air bag or seat belt retractor pretensioner.
3. Wait for 120 seconds and then test for greater than 25 ohm between the control circuit terminals listed below.
* Left roof rail air bag terminals 1 and 2 (-E52) or terminals A and B (E52)
* Right roof rail air bag terminals 1 and 2 (-E52) or terminals A and B (E52)
* Driver seat side air bag terminal 1 and 2
* Passenger seat side air bag terminal 1 and 2
* Driver seat belt retractor pretensioner terminal 1 and 2
* Passenger seat belt retractor pretensioner terminal 1 and 2
• If less than the specified range, test for a short between the control circuits, check each connector and CPA to ensure that the shorting bars are lifted. If the circuits and shorting bars tests normal, replace the SDM.
4. Ignition ON, test for less than 11 V between the control circuit terminals listed below and ground:
* Roof rail air bag control circuit terminal 1 (-E52) or terminal A (E52)
* Roof rail air bag control circuit terminal 2 (-E52) or terminal B (E52)
* Seat side air bag control circuit terminal 1
* Seat side air bag control circuit terminal 2
* Retractor pretensioner control circuit terminal 1
* Retractor pretensioner control circuit terminal 2
• If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the SDM.
5. Ignition OFF, test for greater than 25 ohm between the control circuit terminals listed below and ground:
* Roof rail air bag control circuit terminal 1 (-E52) or terminal A (E52)
* Roof rail air bag control circuit terminal 2 (-E52) or terminal B (E52)
* Seat side air bag control circuit terminal 1
* Seat side air bag control circuit terminal 2
* Retractor pretensioner control circuit terminal 1
* Retractor pretensioner control circuit terminal 2
• If less than the specified range, test the control circuit for a short to ground. If the circuit tests normal, replace the SDM.
6. Install a 3 A fused jumper wire between the control circuit terminals listed below.
* Left roof rail air bag terminal 1 and 2 (-E52) or terminals A and B (E52)
* Right roof rail air bag terminal 1 and 2 (-E52) or terminals A and B (E52)
* Driver seat side air bag terminal 1 and 2
* Passenger seat side air bag terminal 1 and 2
* Driver seat belt retractor pretensioner terminal 1 and 2
* Passenger seat belt retractor pretensioner terminal 1 and 2
7. Verify the scan tool Deployment Loop Resistance parameter is less than 2 ohm.
• If greater than the specified range, test both control circuits terminals for an open/high resistance. If the circuits test normal, replace the SDM.
8. If all circuits test normal, replace the roof rail air bag, seat side air bag, or seat belt pretensioner.
DTC B0019-B0020
1. Ignition OFF, disconnect harness connector X200.
2. Disconnect the scan tool.
3. Wait for 120 seconds and then test for greater than 25 ohm between the appropriate control circuit terminals listed below on the SDM side of the connector:
* Passenger instrument panel air bag stage 1 X200 terminal A1 and A2
* Passenger instrument panel air bag stage 2 X200 terminal B1 and B2
• If less than the specified range, test for a short between the control circuits, check each connector and CPA to ensure that the shorting bars are lifted. If the circuits and shorting bars tests normal, replace the SDM.
4. Ignition ON, test for less than 11 V between the control circuit terminals listed below and ground on the SDM side of the connector:
* X200 control circuit terminal A1
* X200 control circuit terminal A2
* X200 control circuit terminal B1
* X200 control circuit terminal B2
• If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the SDM.
5. Ignition OFF, test for greater than 25 ohm between the control circuit terminals listed below and ground on the SDM side of the connector:
* X200 control circuit terminal A1
* X200 control circuit terminal A2
* X200 control circuit terminal B1
* X200 control circuit terminal B2
• If less than the specified range, test the control circuit for a short to ground. If the circuit tests normal, replace the SDM.
6. Install a 3 A fused jumper wire between the control circuit terminals listed below.
* Passenger instrument panel airbag stage 1 X200 terminal A1 and A2
* Passenger instrument panel airbag stage 2 X200 terminal B1 and B2
7. Verify the scan tool Deployment Loop Resistance parameter is less than 2 ohm.
• If greater than the specified range, test both control circuits terminals for an open/high resistance. If the circuits test normal, replace the SDM.
8. Ignition OFF, reconnect harness connector X200.
9. Disconnect the passenger instrument panel air bag harness connector.
10. With the appropriate load tool adaptor, connect special tool J 38715-A in place of the air bag.
11. Ignition ON, test for less than 11 V between the control circuit terminals listed below and ground:
* Passenger instrument panel air bag control circuit terminal A1
* Passenger instrument panel air bag control circuit terminal A2
* Passenger instrument panel air bag control circuit terminal B1
* Passenger instrument panel air bag control circuit terminal B2
• If greater than the specified range, test the control circuit for a short to voltage.
12. Ignition OFF, test for greater than 25 ohm between the control circuit terminals listed below and ground:
* Passenger instrument panel air bag control circuit terminal A1
* Passenger instrument panel air bag control circuit terminal A2
* Passenger instrument panel air bag control circuit terminal B1
* Passenger instrument panel air bag control circuit terminal B2
• If less than the specified range, test the control circuit for a short to ground.
13. Ignition OFF, test for less than 5 ohm between the control circuit terminals listed below:
* X200 control circuit terminal A1 and passenger instrument panel air bag harness connector control circuit terminal A1
* X200 control circuit terminal A2 and passenger instrument panel air bag harness connector control circuit terminal A2
* X200 control circuit terminal B1 and passenger instrument panel air bag harness connector control circuit terminal B1
* X200 control circuit terminal B2 and passenger instrument panel air bag harness connector control circuit terminal B2
• If greater than the specified range, test the control circuit for an open/high resistance.
14. If all circuits test normal, replace the passenger instrument panel air bag.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* SIR/SRS Wiring Repairs SIR/SRS Wiring Repairs
* Instrument Panel Inflatable Restraint Module Replacement Instrument Panel Inflatable Restraint Module Replacement
* Steering Wheel Inflatable Restraint Module Replacement Steering Wheel Inflatable Restraint Module Replacement
* Steering Wheel Inflatable Restraint Module Coil Replacement Removal and Replacement
* Inflatable Restraint Side Impact Sensor Replacement Inflatable Restraint Side Impact Sensor Replacement
* Roof Side Rail Inflatable Restraint Module Replacement
* Seat Belt Retractor Pretensioner Replacement - Front Removal and Replacement
* Control Module References Programming and Relearningfor SDM replacement, setup, and programming