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Accelerator Pedal or Lever Position Sensor Supply Voltage Circuit
– Voltage Above Normal or Shorted to High Source |
Overview
| CODE | REASON | EFFECT |
| Fault Code: 387 PID: S221 SPN: 1043 FMI: 3/3 LAMP: Amber SRT: |
Accelerator Pedal or Lever Position Sensor Supply Voltage Circuit – |
Automotive and marine applications: Engine will only idle. |
 Accelerator Pedal or Lever Position Sensor Supply Voltage Circuit
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Circuit Description
The electronic control module (ECM) supplies the accelerator pedal or lever position sensor with +5 volts.
Component Location
The accelerator pedal or lever assembly is located in the cab. For marine applications, the accelerator lever assembly is typically located in the engine compartment or helm.
Shop Talk
This fault is logged when the ECM senses more than +5.25 volts on the accelerator pedal or lever position +5 volt supply line. This can be caused by a short circuit to a voltage source in the OEM harness or a short circuit to an actuator signal circuit that is greater than +5 volts.
Refer to Troubleshooting Fault Code t05-387
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