Pinpoint Test D: 4WD Control Module Received No/Invalid Data From Pcm
NOTE:
Conduct Steps 1 through 7 outlined in Inspection and Verification prior to performing this test.
- D1 CHECK THE THROTTLE POSITION SENSOR
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: PID/DATA Monitor and Record.
- Monitor the throttle position (TP) sensor while pressing down and releasing the accelerator pedal.
- Does the throttle position agree with the accelerator pedal position?
Yes : The system is operating correctly at this time. CLEAR the DTCs. REPEAT the self-test.
No : REFER to the INTRODUCTION - GASOLINE article or INTRODUCTION -- HYBRID ESCAPE & HYBRID MARINER article for further diagnosis to the electronic engine controls.