Diagnostic trouble code (DTC) information

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Condition

Fig 1: Identifying Atmospheric Pressure Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) ECM-0A is stored If the atmospheric pressure sensor circuit is short-circuited to ground or voltage or if there is an open-circuit in the circuit.

Substitute Value

90 kPa (approximately 1000 meters above sea-level)
No leak diagnostic.

Possible Source

Signal too high:

Short-circuit to supply voltage in the signal cable
Faulty atmospheric pressure sensor.

Signal too low:

Short-circuit to ground in signal cable
Open-circuit in the signal cable
Faulty atmospheric pressure sensor.

Fault symptom[s]

Malfunction indicator lamp (MIL) lit.