Circuit Description
This diagnostic determines if the ABS system is capable of detecting a rough road situation. This DTC is a type D DTC.
Conditions for Setting the DTC
Test Conditions
| • | The vehicle speed is at least 1 mph. |
| • | The engine speed is no more than 5900 RPM. |
| • | The engine load is no more than 89.9%. |
| • | The DTC P0300 is set, and the DTC P0300 is requesting the MIL on. |
| • | The rough road indicator is not being sent by 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
Number(s) below refer to step numbers on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Was the On-Board Diagnostic (OBD) System Check performed? | Go to Antilock Brake System |
