Circuit Description
The PCM monitors various parameters and will not allow traction control operation if any parameter falls below a specified value.
Conditions for Setting the DTC
The PCM detects a malfunction and then causes TCS shut down until the malfunction has been corrected
Action Taken When the DTC Sets
| • | A DTC C0240 is stored |
| • | The TCS is disabled |
| • | The TRAC OFF indicator is turned on |
| • | If the TCS is again allowed to function, the indicator will be turned off but the DTC will be stored |
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present and the scan tool clear DTC function is used |
| • | 100 ignition cycles have passed with no DTCs detected |
Diagnostic Aids
This code is primarily for information only. As an aid to the technician, if DTC C0240 is a history code, this indicates that there are no problems in the ABS/TCS system. If DTC C0240 is a current code, the PCM has detected a malfunction that would not allow traction control to function, or there may be a suspect PCM.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Diagnostic System Check performed? | -- | ||
2 |
Are any other DTCs set? | -- | Go to Diagnostic Trouble Code (DTC) List for the appropriate DTC table | |
3 | Is DTC C0240 set as a current code? | -- | ||
Did DTC C0240 set as a current DTC? | -- | |||
5 | Perform the Powertrain OBD System Check. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls 3.1 or Powertrain On Board Diagnostic (OBD) System Check in Engine Controls 3.8. Did the vehicle pass the OBD System Check? | -- | Go to Diagnostic Aids | Go to Powertrain Control Module Diagnosis in Engine Controls 3.1 or Powertrain Control Module Diagnosis in Engine Controls 3.8 |
