CHECKING WIRING
If the manufacturers test box is being used. Perform the following step.
Install the Test Box 105 PinVAG1598/31.
If the manufacturers test box is not being used. Perform the following step.
Remove the Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REPLACING .
Using a Multimeter --, check the Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector terminals to the Engine Control Module (ECM) -J623- electrical harness connector T121 terminals for an open circuit according to the wiring diagram.
| Engine Coolant Temperature (ECT) Sensor -G62- electrical harness connector terminals | Engine Control Module (ECM) -J623- electrical connector 121 terminals or test box socket |
|---|---|
| 1 | 93 |
| 2 | 108 |
Specified value: 1.5 ohms Max.
If the specification was not obtained
Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
Check the electrical harness connector for damage, corrosion, lose or broken terminals.
If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring
Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY
Perform a road test to verify repair.
If the DTC does not return
Repair complete, Generate readiness code. Refer to READINESS CODE DESCRIPTION .
End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK
Replace the Engine Control Module (ECM) -J623-. Refer to ENGINE CONTROL MODULE J623, REPLACING .
Assembly is performed in the reverse of the removal.