Diagnostic trouble code (DTC) information

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.