C0241
PWM DELIVERED TORQUE REDUCTION MALFUNCTION
Traction control is simultaneously controlled by the electronic brake and traction control module (EBTCM) and the powertrain control module (PCM) engine control module (ECM). The EBTCM sends a requested torque message via a pulse width modulated (PWM) signal to the PCM/ECM requesting a desired engine torque level for proper traction control system operation. The EBTCM supplies the pull up voltage.
CODE PARAMETERS
DTC C0241 will set if:
^ There is an interruption in the requested torque circuit between the EBTCM and PCM/ECM.
^ A defective requested torque signal is detected by the PCM/ECM, PWM signal outside the normal range (95% - 97%) is sent back to the EBTCM via the delivered torque circuit.
^ The EBTCM receives an out of range signal for 30 milliseconds continuously.
^ Ignition voltage is present and the EBTCM detects engine RPM greater than 480.
^ When this trouble code set the EBTCM will disable traction control.
DIAGNOSTIC AIDS
^ It is very important to thoroughly inspect wiring components and connectors. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ Inspect any circuitry that may be causing the complaint for the following conditions:
- Backed out terminals
- Improper mating
- Broken connector locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections.
- Physical damage to the wiring harness.
^ Possible causes for DTC C0241 to set:
- Open in the requested torque circuit
- Requested torque circuit shorted to ground or voltage
- Communication problem
- Requested torque circuit has a wiring problem, terminal corrosion, or poor connections
- PCM/ECM not receiving information from EBTCM