Component Inspection

P0343 Camshaft Position Sensor A Circuit High Input

Inspection/Repair - Component Inspection

Component Inspection

1. CMPS check
(1) Key "ON". (Don't disconnect sensors.)
(2) Select "vehicle scopemeter" in the menu, and connect channel A of scantool with terminal 2 of CMPS harness connector.
(3) Engine start. And check the signal waveforms.
A. Specification :




(4) Is the signal waveform within specifications?
YES
1) Substitute with a known-good ECM and check for proper operation. If the problem is corrected,replace ECM and then go to "Verification of Vehicle Repair" procedure.

CAUTION:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM.
Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others

NO
1) Substitute with a known-good CMPS and check for proper operation. If the problem is corrected,replace CMPS and then go to "Verification of Vehicle Repair" procedure.