2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 208

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 208

Except Tahoe/Yukon Hybrid (No Denali)

DTC B0081 (Except Tahoe/Yukon Hybrid (No Denali))

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using the diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B0081 0F

- Passenger Presence System Erratic (sets in the SDM)

DTC B0081 3A

- Passenger Presence System Incorrect Component Installed (sets in the SDM)

DTC B0081 4B

- Passenger Presence System Calibration Not Learned (sets in the passenger presence (PPS) module)

DTC B0081 5A

- Passenger Presence System Plausibility Failure (sets in PPS module)

DTC B0081 39

- Passenger Presence System Internal Electronic Failure (sets in SDM)

DTC B0081 71

- Passenger Presence System Invalid Serial Data Received (sets in SDM)

Circuit/System Description

When the ignition is turned ON, the passenger presence system (PPS) and the inflatable restraint sensing and diagnostic module (SDM) performs

tests to diagnose critical malfunctions. When the SDM has completed the power-up mode, the SDM will establish communication with the PPS

module. The SDM will also request the instrument panel cluster (IPC) to illuminate both of the PASSENGER AIR BAG ON/OFF indicators ON

for 5 seconds. If the SDM determines the correct PPS is installed and functioning normally, the SDM will illuminate the passenger air bags ON or

OFF indicator based on messages from the PPS. The SDM sends a message to the IPC to illuminate the appropriate PASSENGER AIR BAG

ON/OFF indicator.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

All of the following conditions must exist for 5 seconds:

B0081 0F

The SDM sets this DTC if there is a fault present in the PPS module.

B0081 3A

The SDM sets this DTC when the SDM has received a message from the PPS which indicates a mismatch between the SDM and PPS module.

There is either an incorrect SDM or PPS module installed on this vehicle.

B0081 4B

The PPS module sets this DTC when the PPS module has not learned the calibrations.

B0081 5A

The PPS module sets this code when the PPS module has lost communications with the SDM.