Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P005100

Condition




The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) registers that the front heated oxygen sensor (HO2S) preheating circuit (bank 2) has a short-circuit to ground or if there is an open-circuit.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code can be diagnosed when the ignition is on.

Substitute value
- Fuel trim switched off.
- Front heated oxygen sensor (HO2S) preheating switched off.

Possible source
- Open-circuit in the power supply cable.
- Short-circuit to ground in the power cable.
- Damaged front heated oxygen sensor (HO2S).

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.