What does fault code ECM-P007284 mean?

Diagnostic fault code details for ECM-P007284 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P007284 - Ambient Air Temperature Sensor Circuit Low Input. Bus Signal / Message Failures. Signal below allowable range

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

3 models

S60 (2011–), S80 (2007–), V70 (2008–)

Show models by year and engine (9)

What does this fault code mean?

Although the code is named a bus or message fault, it concerns the outside temperature signal being below the sensor's allowed range. The engine control module compares the signal with the sensor's operating range and sets the code when it is too low.

Possible causes

The sensor is damaged
The signal lead has a short circuit to ground
There is an open circuit in the signal lead

What you can do

1Read the fault code with a diagnostic tool with the ignition in position II and note whether it is active or only stored
2Make sure the fuses are intact. Their location is on the fuse chart or in the instruction manual
3If you have a diagnostic tool, read the outside temperature in live data with the ignition on and see whether it is too low compared with the surroundings
4With the ignition off, check the sensor connector and connections for oxidation and loose contacts
5With a multimeter, check that the signal lead is not short-circuited to ground and has no open circuit. Have a workshop check the sensor if the fault remains

Symptoms you may notice2

The outside temperature gauge does not work
The outside temperature is displayed as too low

What the fault can affect1

A predefined value is used instead

General guidance for car owners. Diagnosis on the car can point to a different cause.