2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 58
loops to check for proper circuit continuity and for shorts to ground or voltage.
A shorting bar used within the seat belt anchor pretensioner connector will short together both seat belt anchor pretensioner high and low control
circuits when the connector is disconnected, this will help to prevent unwanted deployment of the pretensioner during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 V.
Conditions for Setting the DTC
B001A 01, B001B 01
The seat belt anchor pretensioner control circuit is shorted to voltage for 120 milliseconds.
B001A 02, B001B 02
The seat belt anchor pretensioner control circuit is shorted to ground for 120 milliseconds.
B001A 04, B001B 04
The seat belt anchor pretensioner control circuit is open for 120 milliseconds.
B001A 0D, B001B 0D
The seat belt anchor pretensioner deployment loop resistance is more than 4.2 ohm for 120 milliseconds.
B001A 0E, B001B 0E
The seat belt anchor pretensioner deployment loop resistance is less than 1.7 ohm for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM requests the instrument cluster 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 malfunction-free ignition cycles have occurred.
Diagnostic Aid
Note: The following diagnostic aids apply for both current and history DTCs.
An incorrectly installed CPA or incorrectly seated connector can cause a shorting bar to short both control circuits together. Check the connectors
and CPAs if a DTC with symptom byte 02 or 0E is set, to ensure that the shorting bars are not causing the circuits to be shorted together. Shorting
bars locations are listed below:
* Inline connectors - on the seat belt anchor pretensioner side of the harness connector
* Harness side of the SDM connector
Terminal fretting, an incorrectly installed CPA, or incorrectly seated connector can cause an open/high resistance condition. Check the circuit
terminals for fretting, incorrectly installed CPAs, or incorrectly seated connectors if a DTC with symptom byte 04 or 0D is set.
If the seat belt anchor pretensioner has deployed under unexpected conditions and/or DTC with symptom byte 01 is set, check both control circuits
for a short to voltage.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System)
Electrical Information Reference
