Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 528 (INDUSTRIAL)

Switched Output B Error


Fault Code: 528
PID: P093
SPN: 93
FMI: 2/2
LAMP: Yellow

Less than (+) 17.0 VDC detected at the switch output B signal pin of the 31-pin OEM connector.

No action taken by the electronic control module (ECM).

Switched Output B Circuit

Circuit Description

The solenoid driver will control engine and vehicle functions by closing or opening a switched solenoid output, based on 11 selected engine parameters. The solenoid output will control functions such as a fan clutch, intake grid heater, air cleaner restriction indicator, or an oil filter differential pressure indicator.

Component Location

The solenoid driver is an OEM device, and the location of the solenoid is dependent upon the OEM.

Refer to Troubleshooting Fault Code t05-528.

Last Modified:  26-Oct-2010