Traction Control System Off Indicator Always On - GMC chevrolet camaro 2000 Service Manual

Brakes Antilock Brake System 5-213
Traction Control System Off Indicator Always On
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Ground
Distribution
Schematics
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Circuit Description
The TCS OFF Indicator is controlled by the EBCM by
sending class 2 messages to the Instrument Panel
Cluster (IPC). It is turned on when the EBCM sets a
OTC that turns on the TCS OFF indicator. It is
also turned on or off when the Control Switch is
pressed. The Electronic Brake Control Module (EBCM)
supplies 12 volts to the Traction Control Switch,
1
when the TCS switch is depressed the EBCM sees
the voltage go low, and that the TCS switch state has
changed. When the EBCM receives that a switch
state has changed it turns on or off the Traction
Control and sends amessage to the IPC to turn on or
off the TCS OFF indicator depending on its
previous state. ·
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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