2010 Cadillac Truck SRX FWD V6-3.0L Page 58

2010 Cadillac Truck SRX FWD V6-3.0L 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