Ignition "OFF".
Disconnect valve connector.
Measure resistance between terminals 1 and 2 of the valve connector(Component side).
Specification : Approx. 29~35Ω at 20℃(68℉)
Is resistance within the specification?
YES
▶ Go to next step as below.
NO
▶ Check valve for contamination, deterioration, or damage. Substitute with a known-good valve and check for proper operation. If the problem is corrected, replace valve and then go to "Verification of Vehicle Repair" procedure