Possible Causes:
- Internal short circuit in the coolant temperature sensor wiring harness.
- Faulty coolant temperature sensor.
Related Contents:
2025 JCB ServiceMaster 4 v25.1.0 Free Download for Win 10 Win11
JCB Diagnostic tool
Diagnosis:
- Disconnect the coolant temperature sensor and MECU. Use a multimeter to check connectivity between circuit numbers 4303B and 4069. Refer to the provided photograph for reference.
- Measure the resistance between the coolant temperature sensor…
