Monitor Scantool Data
1.

Ignition "OFF" & Engine "OFF".

2.

Install Scantool and Engine "ON".

3.

Monitor Engine Coolant Temperature Sensor on Current data.

Fig 1) Signal decreases with increasing sensor temperature and increases with decreasing sensor temperature

4. Is Current data displayed correctly ?

YES

▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to "W/Harness Inspection" procedure.

Яндекс.Метрика