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Home >> Volvo >> 2013 >> XC90 Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 1 Of 13 >> ECM-1100: Outside Temperature Sensor. Signal Too High (B5254T2; B6294T; 2003-2004) >> Signal Too High >> Checking Components And Wiring

Checking Components And Wiring

Check the resistance of the outside temperature sensor.

Check the signal cable between control module terminal #B29 (#B39) and outside temperature sensor terminal #2. Check for a short-circuit to ground.

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #2 and the ground terminal must be approximately 5V. 

Remedy as necessary.

Other information: 

Fig 1: Identifying Connector Terminals
GLL104136Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS CORPORATION
Fig 3: Identifying Outside Temperature Sensor
GLL103188Courtesy of VOLVO CARS CORPORATION