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The computer is specifically saying the circuit is not working correctly:
CIRCUIT DESCRIPTION
A battery positive is supplied to the evaporative emission (EVAP) canister vent solenoid valve. The control module grounds the EVAP canister vent solenoid valve control circuit to close the valve by means of an internal switch called a driver. The scan tool displays the commanded state of the EVAP canister vent solenoid valve as ON or OFF. The control module monitors the status of the driver. If the control module detects an incorrect voltage for the commanded state of the driver, this DTC sets.
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Soooo
The computer is able to tell by monitoring the voltage on the driver side of the ECM. The vent solenoid is constantly fed 12 volts on the red and white wire. The first thing that needs done, is to check for this 12 volts at the vent solenoid while the "Key on engine off". If you do have 12 volts, then there is another issue. You either have another bad solenoid or there is a "driver" issue. This could mean the ECM's INTERNAL "driver" that grounds this circuit is not functioning, OR, the WHITE control wire going to the solenoid has a open some where.
If you find out their is 12 volts being supplied at the solenoid, then really to test the driver/grounding of the solenoid, a Bi Direction Scan tool is needed to command solenoid open/close.
Just to re-iterate the previous summary I posted, this code is specifically that the ECM was unable to see a voltage when trying to command this circuit on. It has nothing to do with an evap leak or any other means of how the system tests itsself
I should also note, that really this red wire needs tested with a test light. Because , if the wire is damaged it still can potentially show 12 volts, but when a "draw" is placed on it the voltage could drop to 0. So using a test light, it could potentially rule out damaged but some what intact wiring "this is in severe cases".
So to simply what I said, It is best to test the red wire for 12volts and with a test light to make sure the test light, lights...
I don't get it. I cleared the code the day I updated this thread saying it was back......now it isn't an active code...I hope its not gonna mess with me, and throw a code here and there.
I don't get it. I cleared the code the day I updated this thread saying it was back......now it isn't an active code...I hope its not gonna mess with me, and throw a code here and there.
Could very well be intermittent,if it was indeed a mechanical oil pressure issue, it would of already returned.
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