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 Signal specification
- For 5-cylinder turbocharged engines and 6-cylinder engines 2001, see Component specifications .
- For 5-cylinder turbocharged engines and 6-cylinder engines 2002, see Component specifications .
- For 5 cylinder turbocharged engines and 6 cylinder engines 2003-, see Component specifications .
- For B5254T4 2004-, see Component specifications .
- For 5-cylinder normally aspirated engines 1999-, 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