PRE-RELEASE
DTC B1001
| DTC B1001 |
| 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 B1001 00
Configuration of options
DTC B1001 33
Option configuration - memory error
DTC B1001 45
Option configuration - variant not programmed
DTC B1001 4B
Option configuration - calibration not learned
| Circuit/System Description |
The inflatable restraint sensing and diagnostic module (SDM) stores a primary data key, which is a 4-digit number. When the ignition is turned ON, the SDM compares this information to the information stored in the body control module (BCM) via serial data communication. If there is a mismatch between the information stored in the SDM and BCM, DTC B1001 will set.
| Conditions for Running the DTC |
System voltage is between 9-16 V.
| Conditions for Setting the DTC |
The 4-digit Primary Data Key stored in the SDM does not match the 4 digits stored in the BCM.
| Action Taken When the DTC Sets |
| • |
The SDM requests the instrument cluster to illuminate the AIR BAG indicator.
|
|
| • |
The SDM disables all deployments.
|
|
| Conditions for Clearing the DTC |
The last 4-digit Primary Data Key in the SDM matches the last 4 digits stored in the BCM.
| Diagnostic Aids |
This DTC is an indication that an incorrect SDM is installed in the vehicle, or that the SDM and/or the BCM was replaced without reprogramming the BCM with the new information.
| Reference Information |
Schematic Reference
SIR Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
SIR System Description and Operation
Electrical Information Reference
| • |
Circuit Testing
|
|
| • |
Testing for Intermittent Conditions and Poor Connections
|
|
| • |
Wiring Repairs
|
|
| • |
Connector Repairs
|
|
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| Note | ||
|
Turn the ignition on after performing the setting procedure for the SDM primary keys in BCM. This allows BCM to read the SDM primary key's new value. |
| 1. |
Verify the diagnostic tool parameter for SDM Primary Key Status is Valid in BCM.
|
|
| 2. |
If the parameter for SDM's primary key status is invalid
Perform setting of SDM, see Inflatable restraint sensing and diagnostic module, programming and configuration . |
|
| 3. |
If the parameter for SDM's primary key status is valid
|
|
| 4. |
All OK.
|
|
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the repair.
| • |
SIR/SRS Wiring Repairs
|
|
| • |
Control Module References
for SDM replacement, programming and setup
|
|
