Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Outside Temperature Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) CI-0A is stored if the resistance in the outside temperature sensor wiring circuit exceeds 100 kohm for more than 80 ms.

Substitute Value 

None.

Possible Source 

• short-circuit to supply voltage in the signal cable
• open-circuit in the signal cable or in the ground lead
• defective outside temperature sensor.

Fault symptom[s] 

• too low engine coolant temperature (ECT) displayed.