DTC P2681-11: Engine Coolant Bypass Valve Circuit Short to Ground; DTC P2681-15: Engine Coolant Bypass Valve Circuit Short to Battery or Open [12/2019 - 10/2022]: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK TERMINAL VOLTAGE (POWER SOURCE OF FLOW SHUTTING VALVE (FOR HEATER CONTROL))
*a Front view of wire harness connector
(to Flow Shutting Valve (for Heater Control) (Water By-pass Hose Assembly))- Disconnect the flow shutting valve (for heater control) (water by-pass hose assembly) connector.
- Turn the ignition switch to ON.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition C43-2 (+FSV) - Body ground Ignition switch ON 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 FLOW SHUTTING VALVE (FOR HEATER CONTROL) (WATER BY-PASS HOSE ASSEMBLY)
Refer to INSPECTION [12/2019 - ]
Result
Proceed to OK NG Result:
NG
REPLACE FLOW SHUTTING VALVE (FOR HEATER CONTROL) (WATER BY-PASS HOSE ASSEMBLY)
Refer to REMOVAL [12/2019 - 10/2022]
Result:
OK
See step 3
- CHECK HARNESS AND CONNECTOR (FLOW SHUTTING VALVE (FOR HEATER CONTROL) - ECM)
- Disconnect the flow shutting valve (for heater control) (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 C43-1 (-FSV) - C55-42 (WSV1) Always Below 1 Ω C43-1 (-FSV) or C55-42 (WSV1) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM
Refer to REMOVAL [12/2019 - 10/2022]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
