Circuit Description
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 PCM/ECM sends a delivered torque message via a pulse width modulated (PWM)
signal to the EBTCM confirming the delivered engine torque level for proper traction
control system operation. The EBTCM supplies the pull up voltage.
DTC Parameters
DTC C0244 will set if the following conditions exist:
| • | There is an interruption in the delivered torque circuit between the EBTCM
and PCM/ECM. |
| • | The EBTCM receives an out of range or no signal for 2 seconds continuously. |
| • | Ignition voltage is present and the EBTCM detects engine RPM
greater than 480. |
| • | When this DTC sets, the EBTCM will disable traction control. |
Diagnostic Aids
Inspect the wiring for:
| • | Improperly formed or damaged terminals |
| • | Poor terminal-to-wiring connections. |
| • | Physical damage to the wiring harness. |
Possible causes for DTC C0244 to set:
| • | Open in the delivered torque circuit |
| • | The delivered torque circuit shorted to ground or voltage |
| • | Communication frequency problem |
| • | Communication duty cycle problem |
| • | The delivered torque circuit has a wiring problem, terminal corrosion,
or poor connections |
| • | EBTCM not receiving information from PCM/ECM |
