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Electronic Control System ISM and QSM11 Engines – FAULT CODE 541

ICON™ Starter Relay Input Circuit


Overview

CODE REASON EFFECT
Fault Code: 541
PID: S123
SPN: 615
FMI: 11/31
LAMP: Yellow
SRT: 

Incorrect voltage detected at the ICON™ starter relay input circuit by the ECM.

The ICON™ system will be disabled. Mandatory shutdown can still be enabled. Engine can be started normally.
ICON™ Starter Relay/Interlock Circuit
SMALL | MEDIUM | LARGE

Circuit Description

Incorrect voltage detected at the ICON™ starter relay circuit by the ECM.

Component Location

The ICON™ starter relay is located on the vehicle-side fire wall near the vehicle starter relay.

Shop Talk

This fault indicates a short circuit to battery/ground or an open ICON™ starter relay circuit. All interlock switches must be closed and the ICON™ lamp must be functional before the ICON™ system can be enabled for the engine to run while ICON™ is active. These circuits apply only when ICON™ is enabled.

Refer to Troubleshooting Fault Code t05-541

Last Modified:  02-Sep-2010
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