Error codes P1494, P1495, P0500 (bad PCM?)
Chrysler Town and Country 2001 80K 3.8L
I originally posted a note (that I have closed) about the automatic shutdown relay yesterday.
Last week I got an OBD code of 1494 (leak detection pump). Just replaced that part but that didn't allow me to reset the engine light. Then I started to run into other problems.
When the ignition is turned off and then wait a couple hours, the Automatic Shutdown Relay (ASD) is still warm. Eventually the battery gets drained (24 hours) unless the engine is started before that happens. Before the battery is drained, if you remove one of the battery cables, the ASD clicks numerous times.
The engine light is still on as well and it is now spitting out two error codes: P1495 (auxilliary emissions problem) and P0500 (vehicle speed sensor). As I was taking the van to the auto parts place to get an OBD reading, I noticed that the speedometer is no longer working. Worked yesterday. A lookup on the P1495 says that there may be an issue with the solenoid control circuit. I would believe that if it wasn't for the speedometer crapping out.
Could I possibly be dealing with a faulty PCM?