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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 2 Of 11 >> ECM-1100: Outside Temperature Sensor. Signal Too High. Permanent Fault (B6284T; 1999-2001) >> Signal too high. Permanent fault >> Checking component and wiring
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Checking component and wiring

Check outside temperature sensor resistance.

Check signal cable between control module #B29 (#B39) and outside temperature sensor #1 for a short-circuit to ground according to Short-circuit to ground, permanent faults

HINT: With the ignition on and outside temperature sensor connector disconnected the voltage between #1 and ground terminal should be approximately 5 V. 

Remedy as necessary.

Other information: 

Fig 1: Identifying Outside Temperature Sensor Connector Terminals
GLL104136Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Outside Temperature Sensor
GLL103188Courtesy of VOLVO CARS OF NORTH AMERICA.