Whenever it rains the engine light comes on my Dodge Grand Caravan and sometimes the radiator fans continue to run after I turn off the engine. They (2 fans) will run until the battery is dead. It never happens when it is not raining. I swapped a couple of the relays around and the problem did not show up again. Yet a couple of days ago the engine lite came back on coming back to Dallas from East Texas in heavy rain. This time the radiator fans did not continue to spin and run down the battery when I turned the engine off, yet by the time I got home it was not raining. I took the Van to AutoZone and they read the computer code for me. They did not know what it means. In a previous post I was told it was the radiator relay under the aircleaner box but I cannot see any relays underneath there. All the relays appear to be beside the battery and a few under the dash, yet there is nothing labeled radiator fans in the bank of relays. Searching
- Does the "engine cooling fan relay" mount on the chassis and if so where is it located, can I see it without removing the air filter box.
- What does the code below indicate is wrong.
This is what the Autozone ticket says:
TroubleCode OBDII (Alpha) P code
P1491 Secondary Switch Solenoid Circuit Mulfunction Any ideas? Thanks in Advance...