JCB P0117: Low Signal Circuit 1 of the Engine Coolant Temperature Sensor

The system detects a low signal in circuit 1 of the engine coolant temperature sensor, indicating a potential issue with the sensor's electrical connection or the associated wiring.

1. 1

   The wiring and connections of the engine coolant temperature sensor

2. 2

   The integrity of the signal circuit 1

1. 1

   Inspect the wiring and connections of the engine coolant temperature sensor

   Check for any damage, corrosion, or loose connections in the wiring and connectors.

2. 2

   Test the signal circuit 1

   Use a multimeter to verify the continuity and voltage in the signal circuit 1 as per the service manual.