Circuit Description
This diagnostic detects a serial data malfunction which could inhibit the transfer of the ABS rough road data to the VCM. This DTC is a type D DTC.
Conditions for Setting the DTC
Test Conditions
- The DTC P0300 is set, and the DTC P0300 is requesting the MIL ON.
- No rough road data is available from the EBCM.
Action Taken When the DTC Sets
The Malfunction Indicator Lamp (MIL) will not illuminate. The VCM stores a history DTC.
Conditions for Clearing the MIL/DTC
The VCM turns OFF the MIL after 3 consecutive driving trips without a fault condition present. A history DTC will clear if no fault conditions have been detected for 40 warm-up cycles (the coolant temperature has risen 22°C (40°F) from the start-up coolant temperature and the engine coolant temperature exceeds 71°C (160°F) during that same ignition cycle) or the scan tool clearing feature has been used.
Test Description
The number below refer to the step number on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Important: Before clearing the DTCs use the scan tool in order to record the Freeze Frame and the Failure Records for reference because the Clear Info function will lose the data. Was the On-Board Diagnostic (OBD) System Check performed? | -- | ||
Was a problem found? | -- | Go to Section 5E1 Antilock Brake System (ABS) | ||
3 | Repair the problem as necessary. Is the action complete? | -- | -- | |
4 |
Does the scan tool indicate that this diagnostic Ran and Passed? | -- | -- | |
5 | Using the scan tool, select Capture Info and Review Info. Are any additional DTCs displayed that have not been diagnosed? | -- | Go to the Applicable DTC Table | System OK |
