Otc C0244 Pwm Delivered Torque Malfunction - GMC chevrolet camaro 2000 Service Manual

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Brakes
Antilock Brake System 5-199
DTC C0244 PWM Delivered Torque Malfunction
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519744
Circuit Description Diagnostic Aids
Traction Control is simultaneously controlled by the
EBCM.and the PCM. The PCM sends a
• It is very important that a thorough inspection of
the wiring and connectors be performed. Failure
DELIVERED TORQUE message via a Pulse Width
Modulated (PWM) signal to the EBCM confirming the
delivered torque level for proper Traction Control
system operation, The EBCM supplies the pull
up voltage.
Conditions for Setting the DTC
DTC C0244 can be set anytime when ignition voltage
is present. A malfunction exists if the PWM signal
is out of range or no signal is received for a period
of 2 seconds.
Action Taken When the DTC Sets
• A malfunction DTC is stored.
• The TCS is disabled.
• The TRAC OFF indicator is turned on. The
ABS remains functional.
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan
tool clear OTC function is used.
• 100 ignition cycles have passed with no DTC(s)
detected.
to carefully and fully inspect wiring and connectors
may result in misdiagnosis, causing part
replacement with reappearance of the malfunction.
• If an intermittent malfunction exists refer to
Checking Aftermarket Accessories in Wiring
Systems.
• Possible causes for OTC C0244 to set:
- Open in CKT 464.
- CKT 464 shorted to ground or voltage.
- Communication frequency problem.
- Communication duty cycle problem.
- CKT 464 has a wiring problem,
terminal corrosion, or poor connections.
- EBCM not receiving information from
the PCM.
Te$t Description
The numbers below refer to step numbers on the
diagnostic table.
4. This step checks for proper torque value in N-m.
6. This step checks for the presence of a pull-up
voltage from the EBCM.