Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




If there is an open-circuit or short-circuit to ground in the ignition coil primary winding circuit and engine speed (RPM) exceeds 1500 rpm, the control module interprets it as a fault and diagnostic trouble code (DTC) ECM-33X0 is stored.

Substitute value
None

Possible source

Signal too high:
- short-circuit to supply voltage in the signal cable

Signal too low:
- short-circuit to ground in the signal cable

Signal missing:
- open-circuit in the signal cable
- contact resistance in terminals.

Fault symptom[s]
- engine not firing on all cylinders
- malfunction indicator lamp (MIL) lit