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

Diagnostic trouble code (DTC) ECM-38 or ECM-3A is stored if the ignition coil circuit short-circuited to ground / voltage or if there is open-circuit in the circuit that the control module has interpreted as a fault.

Substitute Value

Injectors 1 and 4 are disabled.

Injectors 2 and 3 are disabled.

Possible Source

Signal too high:

Short-circuit to supply voltage in the signal cable.
Faulty ignition coil.

Signal too low:

Short-circuit to ground in the signal cable.

Signal missing:

Open-circuit in the signal cable.
Faulty ignition coil.

Fault symptom[s]

Malfunction indicator lamp (MIL) lit.
Engine not firing on all cylinders.
The engine misfires.