1997 Dodge Caravan code 31

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Code 31:

For 1987 and later models only, except L-body
Description: Purge canister/EGR solenoid circuit is open or shorted

Possible Causes
Bad connection or wiring - Check the wiring and connections between the logic module and the solenoid. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.
Bad solenoid - The solenoid is located in the right, front fender next to one to three other solenoids. See the Understanding Solenoids page for information about how to test and repair solenoids.

Diagnostic Method
Trigger Parameters
- Near 0V or near 12V not detected when the solenoid is turned on or off, respectively
Results If Component Fails
Fault code 31 is stored.