GM Service Manual Online
For 1990-2009 cars only

No Start IPC Inop ABS Traction Stability Telltales Illuminate - keywords communication gmlan high lan no speed

Subject:No start, IPC Inop, ABS, Traction, Stability Telltales Illuminate - keywords communication gmlan high lan no speed

Models:2008 Buick Lucerne and Cadillac DTS



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A customer may comment they experience one or more of the following concerns, and one or more of the following DTC may be stored in the vehicle.

    • SERVICE STABILITRAK, SERVICE SUSPENSION SYS, SERVICE TRACTION CONTROL may be displayed on the Driver Information Center (DIC).
    • The engine will not crank over / start.
    • Instrument Panel Cluster (IPC) gauges are inoperative.

C0035

Left Front Wheel Speed Sensor Circuit

C0040

Right Front Wheel Speed Sensor Circuit

C0045

Left Rear Wheel Speed Sensor Circuit

C0050

Right Rear Wheel Speed Sensor Circuit

C0186

Lateral Accelerometer Circuit

C0196

Yaw Rate Circuit

C0242

Engine Control Module (ECM) Indicated TCS Malfunction

C0450

Steering Assist Control Actuator Circuit

C0710

Steering Position Signal

C0899

Device Voltage Low

C0900

Device Voltage High

U0073

High Speed Communication Bus

U0100

Lost Communication With Engine/Powertrain Control Module (ECM/PCM)

U0101

Lost Communication With Transmission Control Module (TCM)

U0104

Lost Communication With Cruise Control Module

U0121

Lost Communication With Electronic Brake Control Module (EBCM)

U0122

Lost Communication With Vehicle Dynamics Control Module

U0132

Lost Communication With Ride Level Control Module

U0140

Lost Communication With Body Control Module (BCM)

U1814

Powertrain High Speed Communication Enable Circuit

U2099

High Speed Communication Enable Circuit

The cause may be the engine wire harness is chaffing on the transaxle case (1) near the EBCM.


Object Number: 2132083  Size: SH

Recommendation/Instructions:

Inspect the engine wire harness. Repair the wiring as needed using procedures found in Diagnostic Information and Procedures- Wiring Repairs.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.