Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P013700

Condition




The engine control module (ECM) assumes two initial values for probe voltage, 0 V and 5 V.
If probe preheating is active and if at least one fuel shut-off (accelerator pedal released for at least 3 seconds) has been made, the rear heated oxygen sensor (bank 1) maximum value must have exceeded 0.6 V and the minimum value must have been below 0.1 V.
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 (DTC) is stored and the engine control module (ECM) interprets it as a fault if these parameters are not achieved after approximately 5 minutes and both the accumulated and actual heated oxygen sensor preheating have reached certain parameters.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.

Substitute value
- Rear heated oxygen sensor (HO2S) control shut off.

Possible source
- The signal cable is short-circuited to ground.
- Open-circuit on the signal cable.
- Damaged rear heated oxygen sensor (HO2S).

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