Cummins ISB CM850 (2003-06) Fault Code: 131 PID: 91 SPN: 91 FMI: 3 Accelerator Pedal or Lever Position Sensor Circuit – Shorted High. High voltage detected at accelerator pedal or lever position circuit.
Cummins ISB CM850 (2003-06) Fault Code: 131 PID: 91 SPN: 91 FMI: 3 Accelerator Pedal or Lever Position Sensor Circuit – Shorted High. High voltage detected at accelerator pedal or lever position circuit.
If troubleshooting an intermittent accelerator problem:
The accelerator pedal or lever position sensor signal voltage can be monitored with the INSITE? electronic service tool, while flexing the harness to locate the intermittent connection.
Possible causes:
1)Accelerator pedal or lever position signal circuit shorted to battery or +5 VDC supply
2)Open accelerator pedal or lever return circuit in the harness or connections
3)Accelerator supply shorted to battery
4)Failed accelerator pedal or lever position sensor.
NOTE: The three wires in the accelerator position sensor circuit must be twisted together.
Possible repairs:
1)Replace the accelerator pedal or lever.
2)Replace the accelerator pedal or lever.
3)Replace the ECM.
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