Service Traction System Message Always On

Circuit Description
The SERVICE TRACTION SYSTEM message is controlled by the EBCM. The SERVICE TRACTION SYSTEM message is activated (turned On) whenever a traction control fault occurs. When the EBCM detects that a fault exists in the traction control system, it turns on the SERVICE TRACTION SYSTEM message by sending a Class 2 message to the IPC.

Diagnostic Aids
^ It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ Thoroughly inspect any circuitry that may be causing the complaint for the following conditions:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections
- Physical damage to the wiring harness
^ The following conditions may cause an intermittent malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation
^ If an intermittent malfunction exists refer to Testing for Intermittent and Poor Connections.