Component Inspection

Component Inspection

1. Check Thermostat
(1) Check cooling system coolant level and fill if low.
(2) Check for a proper cooling system operation. Especially check that cooling and condenser fan working normally.
(3) Remove the thermostat and check the following items:
(1) Stuck or damaged
(2) Verify the temperature at which the valve is open : 80 - 84 °C (176 - 183.2 °F)
(4) Has a problem been found?
YES
- Substitute with a known - good Thermostat and check for proper operation. If the problem is corrected, replace Thermostat and go to "Verification of Vehicle Repair" proprocedure.
NO
- Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.

CAUTION:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others.