DTC P2420-85: Evaporative Emission Control System Switching Valve Control Circuit High - Signal above allowable range: Action
NOTE:
- If purge valve related DTCs are also set, perform the relevant corrective action(s) first.
- It is not possible to replicate the failure event as certain entry conditions must be satisfied (for more information, refer to DESCRIPTION AND OPERATION ). To verify the customer concern, perform routine Evaporative System Diagnostic Check and reread DTCs.
- Refer to the appropriate system wiring diagrams and check the diagnostic module tank leakage changeover valve circuit for short circuit to power