Checking The Component And Wiring

Fig 1: Identifying Ignition In Off Position

GLL101046

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Connectors

GLL101072

Courtesy of VOLVO CARS CORPORATION

Ignition off.
Unplug the air 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
- For 5 cylinder turbocharged engines -2004, see SIGNAL DESCRIPTION
- For 5 cylinder turbocharged engines 2005-, see SIGNAL SPECIFICATION .
- see COMPONENT SPECIFICATIONS
- For B5xx4T, see TEMPERATURE AND PRESSURE SENSORS, REPLACING
- For B6xx4T, see TEMPERATURE AND PRESSURE SENSORS, REPLACING
- see CHECKING WIRING AND TERMINALS
Fig 3: Identifying 4-Bit Connector
Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS CORPORATION

Fig 5: Identifying Intake Air Temperature (IAT) Sensor
Courtesy of VOLVO CARS CORPORATION

Continue
Refer to VERIFICATION