Network, generic

U0682 Lost Communication With Throttle/Pedal Position Sensor/Switch E

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

Track E is usually the redundant second signal of the accelerator pedal, which the controller compares with track D before trusting any torque request. U0682 marks the loss of digital frames from that track. No manufacturer documents it publicly; GM and Ford wire pedal E analog, with Ford setting P2127/P2128 on voltage limits and P2138 when D and E disagree by more than 0.9 degrees. What matters to the driver is described in Ford's 2024 failure-mode table: with one track lost, demand is rate limited; with both gone, the engine ramps to a fixed high idle and ignores the pedal until the brake brings it back to idle. A digital pedal that sends both tracks in one SENT stream can therefore lose D and E together. CARB requires redundant pedal position data.

Likely causes

Signal or reference wire of track E damaged

Water or corrosion in the pedal connector

Pedal module electronics failed

Symptoms

Check engine light and powertrain warning
Delayed throttle response
Fixed elevated idle with no pedal response if both tracks fail

Repair estimate

DifficultyEasyDIY possible

Parts and labour€60–400

Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

throttle pedal sensor evehicle bus wiring

References: fordservicecontent.com, media.melexis.com, law.cornell.edu.