Checking Wiring
-- Remove the Engine Control Module (ECM) -J623-. Refer to the Repair Information.
-- Using a multimeter, Check the Engine Coolant Temperature Sensor -G62- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector T60 terminals for a circuit fault, refer to the chart below.
| Engine Coolant Temperature (ECT) Sensor - G62- electrical harness connector terminals | Engine Control Module (ECM) -J623- electrical connector T60 terminals |
|---|---|
| 1 | 43 |
| 2 | 54 |
Specified values: 1.5 Ω Max.
If the specified value was Not obtained:
-- Check the wiring for an open, high resistance or short circuit.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring and sensor resistance is OK:
-- Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.