Electronic Control System ISM and QSM11 Engines – FAULT CODE 198

ICON™ Lamp


Overview

CODE REASON EFFECT
Fault Code: 198
PID: S122, 3
SPN: 612
FMI: 3
LAMP: Yellow
SRT: 

High voltage detected at the ICON™ lamp circuit when low voltage was expected by the ECM.

The ICON™ system will be disabled. Only mandatory shutdown will be enabled.

ICON™ Lamp Circuit
SMALL | MEDIUM | LARGE

Circuit Description

The ICON™ lamp circuit illuminates the ICON™ lamp to indicate when the ICON™ system is active. In addition, ICON™ fault codes will be flashed out on this lamp. The lamp circuit requires a specific flash timing (on/off timing). If the on/off voltage is incorrect, ICON™ will be disabled. The lamp circuit must be functional to enable ICON™.

Component Location

The ICON™ lamp is located in the vehicle cab on the dash panel.

Shop Talk

This fault indicates a short circuit to battery voltage. The ICON™
lamp will only flash out the active fault codes.

Refer to Troubleshooting Fault Code t05-198

Last Modified:  02-Sep-2010