Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 466

Wastegate Actuator Number 1 Circuit


Overview

CODE REASON EFFECT
Fault Code: 466
PID: S032
SPN: 1188
FMI: 4/4
LAMP: Yellow
SRT: 

Less than (+) 6 VDC detected at the wastegate actuator number 1 circuit when on indicates an excessive current draw from the electronic control module (ECM) or faulty ECM output circuit.

Engine will run derated.

Wastegate Actuator Number 1 Circuit
SMALL | MEDIUM | LARGE

Circuit Description

The wastegate actuators are devices used by the ECM to control boost pressure.

Component Location

The wastegate controller is located on the air inlet horn. Actuator number 1 is the frontmost solenoid on the controller.

Shop Talk

  • Inspect the engine block to chassis ground wire to make sure it is securely fastened to a clean, dry surface.
  • Check the starter solenoid positive (+) terminal for a loose connector or accessory wiring with damaged insulation.
  • Low voltage can be caused by a short circuit to ground, a short circuit to another wire in the harness, or a shorted solenoid coil.
  • Inspect the wastegate actuator number 1 circuit for external wires that can be spliced into powering another device. Remove any extra wires that are found in the circuit.

Refer to Troubleshooting Fault Code t05-466.

Last Modified:  26-Oct-2010