P0807
DTC P0807
Circuit Description
The clutch pedal position (CPP) sensor is an input to the engine control module (ECM). The CPP sensor is a potentiometer type sensor with a 5-volt reference signal circuit, a low reference signal circuit, and a sensor signal circuit. The ECM supplies the 5-volt reference to the CPP sensor.
With the pedal released the CPP sensor signal should read above 4 volts. With the pedal fully depressed the CPP sensor signal should read below 1 volt.
When the ECM detects a continuous open or short to ground in either the CPP sensor signal circuit or the CPP sensor, DTC P0807 sets. DTC P0807 is a type A DTC.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0807 Clutch Position Sensor Circuit Low
Conditions for Running the DTC
^ Ignition voltage is greater than 9 volts.
^ Engine is not cranking.
Conditions for Setting the DTC
The ECM detects a CPP sensor signal voltage less than 0.01 volts for greater than 6 seconds.
Action Taken When the DTC Sets
^ The ECM illuminates the malfunction indicator lamp (MIL).
^ The ECM records the operating conditions when the Conditions for Setting the DTC are met. The ECM stores this information as Freeze Frame and Failure Records.
^ The ECM stores DTC P0807 in ECM history.
Conditions for Clearing the DTC
^ The ECM turns OFF the MIL during the third consecutive trip in which the diagnostic test runs and passes.
^ A scan tool can clear the MIL/DTC.
^ The ECM clears the DTC from ECM history if the vehicle completes 40 warm-up cycles without an emission related diagnostic fault occurring.
Diagnostic Aids
Use the J 35616 GM-approved Terminal Test Kit for any test that requires probing the ECM harness connector or any component connector. For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics
Test Description
The number below refers to the step number on the diagnostic table.
2. This step verifies that a condition exists in the CPP sensor.
