Diagnostic trouble code (DTC) information

Condition 

If an injector circuit is short-circuited to ground / voltage or if there is an open-circuit in the circuit the control module interprets it as a fault and a diagnostic trouble code (DTC) is stored for the injector.

Substitute Value 

Fuel trim disabled.

Possible Source 

Signal too high: 

• Short-circuit to supply voltage in the signal cable
• Faulty injector.

Signal too low: 

• Short-circuit to ground in the signal cable.

Signal missing: 

• Open-circuit in the signal cable
• Faulty injector.

Fault symptom[s] 

• Engine not firing on all cylinders
• Engine does not start
• Malfunction indicator lamp (MIL) lit.