2010 Cadillac CTS Sedan AWD V6-3.6L Page 155
The PPS detects a plausibility error.
B0081 71
The SDM has received invalid or no serial data from the PPS.
Action Taken When the DTC Sets
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
* The I/P module deployment loop will be disabled.
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 Aids
If either the SDM or PPS were replaced, verify that the correct part numbers were used for the vehicle application.
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)
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System Description
and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
Testing/Testing for Intermittent Conditions and Poor Connections)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
Important: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or
replacement of the affected component/connector:
* PPS module
* SDM
* PPS module harness connector
* SDM wiring harness connector
1. Ignition ON, verify no PPS DTCs are set.
瀚慖f any PPS DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic
Trouble Code (DTC) List - Vehicle).
2. Verify that DTC B0081 3A is not set.
瀚慖f DTC B0081 3A is set, verify that the correct PPS is installed. If the incorrect PPS is installed, replace with the correct part number.
3. Verify that DTC B0081 4B is not set.
瀚慖f DTC B0081 4B is set, refer to Passenger Presence System Preload Test (See: Restraints and Safety Systems/Air Bag
Systems/Description and Operation/Passenger Presence System Preload Test).
