C1251

CIRCUIT DESCRIPTION
Voltage is applied to the normally open inlet valves whenever the main relay is energized.

An inlet valve closes when the EBCM/EBTCM supplies a ground path at the inlet valve control terminal.

The EBCM/EBTCM closes an inlet valve for short periods in order to maintain (hold) or reduce pressure at the RR wheel.

CONDITIONS FOR SETTING THE DTC
The DTC C1251 sets when the EBCM/EBTCM detects an open or short to ground in the RR inlet valve circuit.

ACTION TAKEN WITH THE DTC SETS
The following actions are taken when the DTC sets:
^ A malfunction DTC is stored
^ The ABS is disabled
^ The ANTILOCK indicator lamp is turned ON

CONDITIONS FOR CLEARING THE DTC
The DTC will clear under following conditions:
^ Conditions for the malfunction are no longer present. Use the scan tool clear DTCs function.
^ 100 ignition switch key cycles have passed without detecting any malfunctions

DIAGNOSTIC AIDS
Perform a thorough inspection of the wiring and the connectors.

Failure to carefully inspect wiring may result in a misdiagnosis. A misdiagnosis may result in replacing parts without repairing the malfunction.

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Part 2 Of 2:

DTC C1251 RR INLET VALVE CIRCUIT MALFUNCTION