DESCRIPTION
The flow shutting valve (for heater control) used for the variable cooling system is a magnet type valve that is closed when the engine is warming up to prevent coolant from flowing through the heater passage which reduces engine warm up time.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P268111 | Engine Coolant Bypass Valve Circuit Short to Ground | All of the following conditions are met (1 trip detection logic).
|
| Does not come on | DTC stored | SAE Code: P2682 |
P268115 | Engine Coolant Bypass Valve Circuit Short to Battery or Open | All of the following conditions are met (1 trip detection logic).
|
| Does not come on | DTC stored | SAE Code: P2683 |
DTC No. | Data List |
---|---|
P268111 P268115 | Coolant Temperature |
Coolant Water Route Switching Valve |
MONITOR DESCRIPTION
If the power switch is on (IG) or the engine is running and the current operating state and target operating state of the flow shutting valve (for heater control) do not match, the ECM determines that there is an open or short in the flow shutting valve (for heater control) circuit and stores a DTC.
CONFIRMATION DRIVING PATTERN
HINT:
Make sure to perform this procedure when the engine coolant temperature is between 5 and 40°C (41 and 104°F) and the difference between the engine coolant temperature and intake air temperature is within 10°C (18°F) or less.
HINT:
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
Click here
HINT:
Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1. | 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) |
(a) Disconnect the water by-pass hose assembly connector.
(b) Turn the power switch on (IG).
(c) 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 |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - FLOW SHUTTING VALVE (FOR HEATER CONTROL)) |
|
2. | INSPECT WATER BY-PASS HOSE ASSEMBLY |
(a) Inspect the water by-pass hose assembly.
Click here
NG | REPLACE FLOW SHUTTING VALVE (FOR HEATER CONTROL) (WATER BY-PASS HOSE ASSEMBLY) |
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3. | CHECK HARNESS AND CONNECTOR (FLOW SHUTTING VALVE (FOR HEATER CONTROL) - ECM) |
(a) Disconnect the water by-pass hose assembly connector.
(b) Disconnect the ECM connector.
(c) 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 |
OK | REPLACE ECM |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |