Evaporator Temperature Sensor / Switch: Testing and Inspection
Evaporator SensorINSPECTION
On- the vehicle inspection
PREPARATION TOOL:
SUBARU SELECT MONITOR III KIT
Circuit tester
Thermometer
1. Prepare the vehicle.
NOTE: Check that the ambient temperature is 25 - 40°C (77 - 104°F) and humidity is 30% - 80%.
- Place the vehicle in the enclosed space such as maintenance room or in the shade and windless condition.
- Open all windows.
2. Set the vehicle to the following conditions.
3. Using the Subaru Select Monitor, check [[Evaporator Temperature]].
NOTE: For detailed procedures, refer to "PC application help for Subaru Select Monitor".
1. Idle the engine for 15 minutes, and then compare the air flow outlet temperature with [[Evaporator Temperature]].
NOTE: Obtain the air flow outlet temperature by measuring the average temperature of center grille assembly and side grille assembly.
2. Do the air flow outlet temperature and [[Evaporator Temperature]] differ by 3°C (5.4°F) or more?
- Yes -> Go to step 4).
- No -> Evaporator sensor is normal.
4. Perform the inspection of evaporator sensor.
1. Disconnect the evaporator sensor connector.
2. Is the resistance between evaporator sensor terminals within the specification?
- Yes -> Evaporator sensor is normal.
- No -> Replace the evaporator sensor.