Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 199

ICON™ Lamp Circuit


Fault Code: 199
PID: S122
SPN: 612
FMI: 4/4
LAMP: Yellow

Less than (+) 6 VDC (low voltage) detected at the ICON™ lamp circuit when high voltage was expected by the ECM.

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

ICON™ Lamp Circuit

Circuit Description

The ICON™ lamp circuit turns on the ICON™ lamp to indicate when the ICON™ system is active. In addition, ICON™ fault codes will be flashed out on this lamp.

Component Location

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

Shop Talk

This fault typically indicates a short circuit to ground or an open circuit. A short circuit to ground can cause the ICON™ lamp to remain on continuously, regardless if ICON™ is enabled or disabled. An open circuit can be caused by a burned-out bulb. This fault code can not be flashed out on the ICON™ lamp. It can be read using INSITE™
or flashing the diagnostic code on the red and yellow lamps.

Refer to Troubleshooting Fault Code t05-199.

Last Modified:  26-Oct-2010