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CM850 Electronic Control System – FAULT CODE 111

Engine Control Module – Critical Internal Failure


Overview

CODE REASON EFFECT
Fault Code: 111
PID: S254
SPN: 629
FMI: 12/12
LAMP: Red
SRT: 

Engine Control Module – critical internal failure. Error internal to the ECM related to memory hardware failures or internal ECM voltage supply circuits.

Engine may not start.
ECM Microprocessor
SMALL | MEDIUM | LARGE

Circuit Description

The ECM is a computer that is responsible for engine control, diagnostics, and user features.

Component Location

The ECM is located on the fuel system side of the engine. It is attached at the cylinder head between cylinders 2 and 3. Refer to Procedure 100–002 in Section E for a detailed component location view.

Shop Talk

This fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM.

Refer to Troubleshooting Fault Code t05-111

Last Modified:  08-Jul-2010
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