P0567

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
The cruise Resume/Accel switch is an input to the fuel control portion of the PCM. These inputs allow the PCM to control and hold a requested speed. The Cruise Resume/Accel switch sends an ignition voltage to the PCM when the switch is closed (ON). This is a type D DTC.

CONDITIONS FOR SETTING THE DTC
^ The cruise switch is OFF.
^ The ignition voltage on the Resume switch signal circuit.
OR
^ The cruise switch is ON.
^ The resume switch is ON for longer than 25.5 seconds.

ACTION TAKEN WHEN THE DTC SETS
^ Will not turn on the Malfunction Indicator Lamp (MIL).
^ The PCM will disallow all cruise inputs.
^ TCC shift schedules may be affected.

CONDITIONS FOR CLEARING THE MIL/DTC
^ A History DTC will clear after forty consecutive warm-up cycles during which the diagnostic does not fail (the coolant temperature has risen 5°C (40°F) from the start up coolant temperature and the engine coolant temperature exceeds 71°C (160°F) during that same ignition cycle.
^ Use of a Scan tool will clear the DTC codes.

DIAGNOSTIC AIDS
Check for a resume/accel switch stuck in the engage position or the signal circuit shorted to the voltage.

TEST DESCRIPTION
The number(s) below refer to the Step number(s) on the Diagnostic Table.
2. This Step determines if the signal circuit is shorted to the voltage.
3. This Step determines if the PCM or the switch is at malfunctioning.