Chevrolet Silverado / GMC Sierra. Manual - part 662
SIR Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
SIR System Description and Operation
Electrical Information Reference
Circuit Testing
Connector Repairs
Testing for Intermittent Conditions and Poor Connections
Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
1. Ignition ON, verify no PPS DTCs are set in the PPS or SDM.
If any PPS DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
2. Verify DTC B1000, B1001, or U0170 is not set as current.
IMPORTANT:
A DTC B0081 set in history may not clear until the PPS
module enters the sleep mode.
When removing connectors inspect for damage,
corrosion or poor connection. Damage or corrosion in
the following requires repair or replacement of the
affected component/connector.
The PPS module
The SDM module
The PPS module harness connector
The SDM wiring harness connector
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
If any of the DTCs are set as current, refer to Diagnostic Trouble Code (DTC) List -
Vehicle .
3. Verify DTC B0081 3A is not set as current.
If DTC B0081 3A is set as current, replace the PPS with the correct part number.
4. Verify DTC B0081 39 is not set as current.
If DTC B0081 39 is set as current, replace the PPS.
5. Verfiy DTC B0081 71 or B0081 0F is not set.
If DTC B0081 71 or B0081 0F is set, clear the DTCs. No other repairs are necessary.
Clearing DTC B0081
1. To enter the sleep mode, remove the scan tool, turn the ignition OFF, and open and close
the driver door.
2. Ignition OFF and all doors closed, wait 30 seconds.
3. With a scan tool, clear DTC B0081. The DTC should clear.
Repair Procedures
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
SIR/SRS Wiring Repairs
Control Module References for PPS replacement, setup, and programming
DTC B0083-B0088
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 Descriptors
DTC B0083 00
Electronic Front End Sensor 1 No Additional Information (Left)
DTC B0083 0F
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Electronic Front End Sensor 1 Erratic (Left)
DTC B0083 39
Electronic Front End Sensor 1 Internal Electronic Failure (Left)
DTC B0083 3A
Electronic Front End Sensor 1 Incorrect Component Installed (Left)
DTC B0083 71
Electronic Front End Sensor 1 Invalid Serial Data Received (Left)
DTC B0084 00
Electronic Front End Sensor 2 No Additional Information (Right)
DTC B0084 0F
Electronic Front End Sensor 2 Erratic (Right)
DTC B0084 39
Electronic Front End Sensor 2 Internal Electronic Failure (Right)
DTC B0084 3A
Electronic Front End Sensor 2 Incorrect Component Installed (Right)
DTC B0084 71
Electronic Front End Sensor 2 Invalid Serial Data Received (Right)
DTC B0085 00
LF Side Impact Sensor No Additional Information
DTC B0085 0F
LF Side Impact Sensor Erratic
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
DTC B0085 39
LF Side Impact Sensor Internal Electronic Failure
DTC B0085 3A
LF Side Impact Sensor Incorrect Component Installed
DTC B0085 71
LF Side Impact Sensor Invalid Serial Data Received
DTC B0086 00
RF Side Impact Sensor No Additional Information
DTC B0086 0F
RF Side Impact Sensor Erratic
DTC B0086 39
RF Side Impact Sensor Internal Electronic Failure
DTC B0086 3A
RF Side Impact Sensor Incorrect Component Installed
DTC B0086 71
RF Side Impact Sensor Invalid Serial Data Received
DTC B0087 00
LR Side Impact Sensor No Additional Information
DTC B0087 0F
LR Side Impact Sensor Erratic
DTC B0087 39
2008 Chevrolet Silverado 1500
2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado