Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 538

Autoshift Neutral Actuator


Overview

CODE REASON EFFECT
Fault Code: 538
PID: S045
SPN: 719
FMI: 11/11
LAMP: Yellow
SRT: 

Either low voltage detected on autoshift neutral gear actuator circuit when (+) 12 VDC are commanded or voltage detected when no voltage is commanded.

Top 2 neutral actuator will not function properly. Transmission will not shift properly.

Top 2 Shift Solenoid Circuit
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Circuit Description

The autoshift neutral actuator is an ECM-driven solenoid that controls a Top 2 transmission.

Component Location

The autoshift neutral actuator is located on the topside of the transmission toward the back. Use the OEM diagram for the specific location.

Refer to Troubleshooting Fault Code t05-538.

Last Modified:  26-Oct-2010