de20: Service Code 61: Attemp to Generate Code 51
| Steps | _Key Off, wait 10 seconds
_Disconnect vehicle harness from ECT sensor. Inspect for damaged pins, corrosion, loose wires, etc. Service as necessary. _Run Key On Engine Off Self-Test |
| Result | Is Code 51 present? |
| Direction | YES
Replace ECT sensor. Reconnect ECT sensor. Rerun Quick Test NO GO to Continue |
| Component | Engine Coolant Temperature Sensor |
| Description | The ECT sensor reports the engine coolant temperature to the EEC.
The ECT signal input is used by the EEC to: Modify ignition timing EGR flow Air to fuel ratio |
| Location | Threaded into between Fuel Injectors 2 and 3 |
| Wire Colors | Light Green with Yellow stripe
Black with White stripe |
| Image |  |