Diagnostic trouble code (DTC) information

Condition 

Diagnostic trouble code (DTC) ECM-7F is stored if the malfunction indicator lamp (MIL) circuit is short-circuited to ground / voltage or if there is an open-circuit in the circuit the control module has interpreted as a fault.

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
• Damaged MIL lamp.

Fault symptom[s] 

• None.