Diagnostic article Generic OBD-II
P2124: F-150 intermittent pedal faults and harness routing at the booster
Ford points to an incorrectly routed accelerator-pedal harness when specified F-150 throttle-response faults occur.
Read before applying this article
Documented application
Ford SSM 46829: 2015–2017 F-150 with intermittent throttle-pedal response loss, listed warning indicators or accelerator-pedal diagnostic entries.
The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.
P2124 can appear during the intermittent accelerator-pedal response condition described by Ford SSM 46829. The covered 2015–2017 F-150 may also show wrench, hill-descent, airbag, ABS or stability-control indicators. Ford identifies incorrect routing of the accelerator-pedal-position sensor harness behind the brake-booster-to-pedal bracket as a possible cause.
Routing and conductor damage are separate findings
The bulletin directs the workshop to determine whether the harness is trapped by the incorrect route. If it is, the specified procedure frees it and inspects for damaged circuits before restoring proper routing. Repositioning a harness without checking damage is not the same as completing that correction.
Conversely, a correctly routed harness sends the technician to normal diagnosis. The bulletin does not establish that every intermittent pedal code originates at this bracket. A matching P2124 and a sound route require more evidence rather than speculative pedal-sensor replacement.
Keep the intermittent context
Record when pedal response was lost, which warning indicators appeared together and whether the fault remained current afterward. The complete code group can help identify a shared harness event, whereas a single code screenshot omits that context. Do not deliberately provoke loss of throttle response during driving to collect more evidence.
Have a technician inspect the bracket and harness using the relevant Workshop Manual procedure. This article does not provide instructions for loosening braking-system hardware or bypassing pedal signals. The bulletin’s practical contribution is a specific physical cause to check before assuming an internal accelerator-pedal sensor fault, followed by normal diagnosis when the routing concern is absent.
Source and applicability
Ford SSM 46829: 2015–2017 F-150 with intermittent throttle-pedal response loss, listed warning indicators or accelerator-pedal diagnostic entries.
SSM 46829 — NHTSA manufacturer communication 10119677, physical PDF page 1.
Article source documents
Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.
Original code reference
Dictionary definition
Throttle/Pedal Position Sensor/Switch D Circuit Intermittent
This definition retains its original catalog scope. The article above is limited to its explicitly documented application.
Reference scope
Generic OBD-II definition.
A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.
Definition source
- DTC Database: pinned community code definitions
Source checked · MIT