Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3511 FMI 3 (CPC) Remote Accelerator Pedal Supply Voltage Circuit Failed High

Posted by PerDiezel Solutions on April 23, 2026

NOTE: This code sets when the common powertrain controller (CPC) detects the voltage on the sensor supply circuit is out of range.

DESCRIPTION:
Remote accelerator pedal supply voltage circuit failed high.

MONITORED PARAMETER:
Remote accelerator pedal voltage.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
Key on

EXECUTION FREQUENCY:
None

TYPICAL DURATION:
None

DASH LAMPS:
CEL

ENGINE REACTION:
Idle only

VERIFICATION:
1. Ignition Key
2. Cycle on

POSSIBLE CAUSES:
1. Remote accelerator pedal assembly.
2. Circuit fault.
3. Fault within the CPC.
4. Improper configuration of the CPC.

PROBABLE CAUSES:
Short to power on one of the following from the main 120-pin ECM connector:
1. Pin 29 – DOC outlet temperature sensor.
2. Pin 88 – DOC inlet temperature sensor, DOC outlet temperature sensor, DPF inlet temperature sensor, DPF outlet temperature sensor.

WARNING!