B0045
DTC B0012-B0019, B0027, B0028, B0029, B0030, B0039, B0040, B0041, B0045, B0046, B0056-B0076, B0085-B0089, B0106-B0114, B0118-B0124, or B3850-B3854
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
* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Strategy Based Diagnosis
* Diagnostic Procedure Instructions
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 airbag 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.
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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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. Verification Tests
* Inflatable Restraint Instrument Panel Module Replacement
* Inflatable Restraint Side Impact Module Replacement - Front
* Inflatable Restraint Side Impact Module Wiring Harness Replacement
* Seat Belt Buckle Pretensioner Replacement
* Refer to Programming and Relearning.Programming and Relearning