Checking The Component And Wiring

Fig 1: Identifying Ignition In Off Position

GLL101046

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

GLL101072

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Unplug the engine temperature sensor connectors.
Check the connectors. Check for loose connections. Check for contact resistance. Check for oxidation.

Check the resistance of the sensor between #1 and #2 (to the sensor).

Remedy as necessary.

Other information
- See Connecting the breakout box
- See Component specifications
- See Temperature sensor engine coolant, replacing
- See Checking wiring and terminals
Fig 3: Identifying 2-Bit Connector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Engine Coolant Temperature (ECT) Sensor
Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Verification