Inspect Fan Control Module
WARNING: This page is about a different variant/trim than selected.
NOTE:
- The fan control module cannot be removed as a single unit. If the fan control module is replaced, replace the cooling fan component.
- Connect the M-MDS to the DLC-2.
- Switch the main power ON (READY on) and warm up the engine.
- Using the M-MDS, display the PCM PID [FAN_RPM].
- Using the PCM simulation item [FAN_RPM], gradually increase the [FAN_RPM] value from 0% to the maximum value and visually verify that the cooling fan operation speed changes. (Refer to [SIMULATION INSPECTION
] in the appropriate troubleshooting information
) (Refer to [SIMULATION TABLE (PYUL)
] in the appropriate troubleshooting information
)NOTE:
- To start the cooling fan from the stopped condition, approx. 4 s are needed for start-up preparations before starting the cooling fan.
- Using the M-MDS, verify that the cooling fan does not operate at engine coolant temperatures less than 106°C {223°F} while measuring the value of coolant temperature sensor No. 1.
- Using the M-MDS, verify that the cooling fan operates at an engine coolant temperature of 106°C {223°F} or more while measuring the value of coolant temperature sensor No. 1.
- If normal operation cannot be verified in procedures 4, 5 and 6, inspect the input signals of the following part. Replace the cooling fan component if the following part is normal. (See COOLING FAN MOTOR REMOVAL/INSTALLATION [PYUL] ).
- Coolant temperature sensor No. 1 (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [PYUL] .)