Diesel Data: Automotive Repair

Component Inspection





Engine Control
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control - Component Inspection

Component Inspection

1. Ignition "OFF".
2. Disconnect ECTS connector.
3. Measure resistance between terminals 1 and 3 of the sensor connector(Component side).
Specification









4. Is resistance within the specification?
YES
> Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
> Check ECTS for contamination, deterioration, or damage. Substitute with a known-good ECTS and check for proper operation. If the problem is corrected, replace ECTS and then go to "Verification of Vehicle Repair" procedure.