C0628

DTC C0628
Circuit Description
The automatic level control (ALC) sensor is a potentiometer. The rear integration module (RIM) determines the height of the rear of the vehicle based on the voltage from the ALC sensor. The RIM raises or lowers the rear of the vehicle in order to keep the vehicle level.

DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0628 Left Rear Position Sensor Circuit High

Conditions for Running the DTC
The RIM detects a short to battery voltage on the reference or signal circuit.

Conditions for Setting the DTC
The leveling sensor input or feed circuit is found to be shorted to battery voltage for more than 10 seconds.

Action Taken When the DTC Sets
The automatic leveling control will be disabled.

Conditions for Clearing the MIL/DTC
When the RIM does not detect voltage out of the specified range in the signal or reference circuit during the diagnostic self test.

Diagnostic Aids
Refer to Testing for Intermittent Conditions and Poor Connections and Testing for Electrical Intermittents.

Test Description








The number below refers to the step number on the diagnostic table.
8. Make sure the good ground used is separate from the grounds used by the RIM.