For 1990-2009 cars only
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 Descriptor
DTC B1325 03: System Voltage Low VoltageDTC B1325 07: System Voltage High Voltage
Circuit/System Description
With the ignition in either the ACC or ON positions, the inflatable restraint sensing and diagnostic module (SDM) should receive a 12V power supply. DTC B1325 will set to indicate the B+ positive supplied to the SDM is below the threshold.
Conditions for Setting the DTCs
This DTC runs continuously once the following condition is met:
The supplied power to the SDM is between 9 - 16V.
Action Taken When the DTC Sets
A warning lamp will illuminate.
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The DTC can be cleared using a scan tool. |
Reference Information
Schematic Reference
Connector End View Reference
Scan Tool Reference
Circuit/System Testing
- Ignition OFF, wait for 30 seconds, and then disconnect the X1 harness connector at the SDM
- Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 22 X1 and ground.
- If all circuits test normal, replace the SDM
| ⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open high resistance. |
Repair Instructions
Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming
