Component Inspection

P0459 Evaporative Emission System Purge Control Valve Circuit High

Inspection/Repair - Component Inspection

Component Inspection

1. PCSV Check
(1) Key "OFF".
(2) Disconnect PCSV harness connector.
(3) Measure the resistance between terminal 1 and 2 of PCSV harness connector. (Component side)
A. Specification :









(4) Is the measured resistance within specification?
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 PCSV and check for proper operation. If the problem is corrected, replace PCSV and then go to "Verification of Vehicle Repair" procedure.