DTC P2681-11: Engine Coolant Bypass Valve Circuit Short to Ground; DTC P2681-15: Engine Coolant Bypass Valve Circuit Short to Battery or Open [06/2018 - 08/2020]: Procedure
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- CHECK TERMINAL VOLTAGE (POWER SOURCE OF FLOW SHUTTING VALVE (FOR HEATER CONTROL))
*a Front view of wire harness connector
(to Water By-pass Hose Assembly)- Disconnect the water by-pass hose assembly connector.
- Turn the power switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition C69-2 - Body ground Power switch on (IG) 11 to 14 V Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - FLOW SHUTTING VALVE (FOR HEATER CONTROL))
Result:
OK
See step 2
- INSPECT WATER BY-PASS HOSE ASSEMBLY
- Inspect the water by-pass hose assembly.
Refer to INSPECTION [06/2018 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE FLOW SHUTTING VALVE (FOR HEATER CONTROL) (WATER BY-PASS HOSE ASSEMBLY). Refer to REMOVAL [06/2018 - 08/2020]
Result:
OK
See step 3
- Inspect the water by-pass hose assembly.
- CHECK HARNESS AND CONNECTOR (FLOW SHUTTING VALVE (FOR HEATER CONTROL) - ECM)
- Disconnect the water by-pass hose assembly connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C69-1 - C88-42 (WSV1) Always Below 1 Ω C69-1 or C88-42 (WSV1) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [06/2018 - 08/2020]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR