VOLVO
ECM-P011221 - Intake Air Temperature Sensor 1 Circuit Low Input. General Signal Failures. Signal too low
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (6)
- Volvo S80 (2007–)2007–2009Nur Motor: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Nur Motor: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Alle Motoren außer: B6304T2
- Volvo XC70 (2008–)2008Alle Motoren außer: B6324S
- Volvo XC70 (2008–)2009Nur Motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Nur Motor: D5244T18, D5244T5
Was bedeutet der Fehlercode?
The control module keeps checking the reading from the temperature sensor built into the mass air flow sensor while the engine runs. If the signal is too low, the fault code is set.
Mögliche Ursachen
- Damaged air temperature sensor inside the mass air flow sensor
- Contact resistance or oxidation in the connector
Was Sie tun können
- 1Read the fault code status with the ignition on and check that the fault is not active when the test is finished. Clear the code and road test the vehicle
- 2Check that the connector to the mass air flow sensor is firmly seated and free from oxidation and contact resistance
- 3With the ignition on, use a multimeter to check that the connector receives supply voltage. It should match the battery voltage
- 4If the connector and wiring are in order and the fault remains, have a workshop check or replace the mass air flow sensor
Symptome, die Sie bemerken können1
- The engine has poor performance and lacks power
Was der Fehler beeinflussen kann2
- Engine torque may be limited
- The control module uses a calculated value for the air temperature
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.