VOLVO
AEM-6C53 - Alarm output P1. Signal too high. Permanent fault
System
Accessory Electronic Module (AEM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
What does this fault code mean?
The signal on the wire to alarm output P1 is too high while that output is activated, and the fault is still present. The alarm does not work at all. The cause is usually a short to supply voltage in the wire or a damaged alarm.
Possible causes
- Signal wire to alarm output P1 shorted to supply voltage
- Damaged alarm
What you can do
- 1Look for damage on the signal wire to alarm output P1
- 2Check the alarm connectors for oxidation and loose connections
- 3If the fault remains, have the alarm replaced by a workshop after checking the wire
Symptoms you may notice1
- The alarm does not work at all
General guidance for car owners. Diagnosis on the car can point to a different cause.