Was bedeutet der Fehlercode ECM-P007400?

Diagnose und Fehlercodedefinition für ECM-P007400 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P007400 - Ambient Air Temperature Sensor Circuit Intermittent/Erratic. General Failure Information. No sub type information

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

6 Modelle

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–)

Modelle nach Baujahr und Motor anzeigen (8)

Was bedeutet der Fehlercode?

The code is intermittent, meaning the fault comes and goes rather than being present all the time. The engine control module measures outside temperature with the sensor in the left mirror, and the code is set when the signal is irregular or implausible.

Mögliche Ursachen

Contact resistance or oxidation in the connectors
The atmospheric pressure sensor is damaged
The outside temperature sensor is damaged

Was Sie tun können

1Read the fault status with a diagnostic tool. Fault found means the fault is present now, while No fault found means the fault is intermittent and not active at the moment
2Make sure the fuses are intact. Their location is given in the instruction manual
3With the ignition off, check the sensor connector in the left mirror for contact resistance and oxidation. Loose contacts often give irregular readings
4If you have a diagnostic tool, follow the outside temperature in live data for a while. A value that jumps without reason points to a poor contact or a moving wire
5Have a workshop check the sensor if the fault comes back

Symptome, die Sie bemerken können1

The outside temperature gauge shows the wrong value or does not work

Was der Fehler beeinflussen kann1

A calculated value is used

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.