DTC P14CE-12: EVAP System Switching Valve Control Circuit "B" High Circuit Short to Battery; DTC P14CE-14: EVAP System Switching Valve Control Circuit "B" Low Circuit Short to Ground or Open; DTC P2418-12: EVAP System Switching Valve Control Circuit High Circuit Short to Battery; DTC P2418-14: EVAP System Switching Valve Control Circuit Low Circuit Short to Ground or Open [11/2023 - ]: Procedure

1. Clear the DTC after recording the Freeze Frame Data and DTC.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P14CE-12, P14CE-14, P2418-12 or P2418-14 is output	A
   DTCs are not output	B

   HINT: 

   If any DTCs other than P14CE-12, P14CE-14, P2418-12 or P2418-14 are output, troubleshoot those DTCs first.

Result: 

B 

CHECK FOR INTERMITTENT PROBLEMS 

Refer to CHECK FOR INTERMITTENT PROBLEMS [12/2019 - ]

Result: 

A 

See step  3

1. Disconnect the ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A27-12 (CCA+) - A27-20 (CCA-)	20°C (68°F)	29 to 33 Ω
   A27-11 (CCB+) - A27-19 (CCB-)	20°C (68°F)	29 to 33 Ω
   A27-12 (CCA+) or A27-20 (CCA-) - Body ground and other terminals	Always	10 kΩ or higher
   A27-11 (CCB+) or A27-19 (CCB-) - Body ground and other terminals	Always	10 kΩ or higher

   HINT: 

   The standard values shown are fuel vapor-containment valve resistance values.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM 

Refer to REMOVAL [11/2023 - ]

Result: 

NG 

See step  4

Refer to PROCEDURE - Step 1

Result

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM) 

Result: 

NG 

REPLACE FUEL VAPOR-CONTAINMENT VALVE 

Refer to REMOVAL [12/2019 - ]