Engine Control Module Warning Internal Hardware Failure - Bad Intelligent Device or C... Page 1 of 3
FAULT CODE 343
Engine Control Module Warning Internal Hardware Failure - Bad Intelligent Device or Component
Overview
CODE | REASON | EFFECT |
Fault Code: 343 | Engine Control Module Warning Internal Hardware Failure - Bad Intelligent Device | Possible none on performance, or |
PID: | or Component. Internal ECM error. | severe derate. |
SPN: 629 | ||
FMI: 12/12 | ||
LAMP: Amber | ||
SRT: |
Engine Control Module Warning Internal Hardware Failure - Bad Intelligent Device or C... Page 3 of 3
Circuit Description
The engine control module (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. Use the following procedure for a detailed component location view. Refer to Procedure 100-002 in Section E.
Shop Talk
This is a fault that can only be caused by an internal ECM problem. Repairs are not possible for the ECM. Refer to Troubleshooting Fault Code t05-343.
Last Modified: 15-Jan-2013
Copyright © 2000-2010 Cummins Inc. All rights reserved.
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