Powertrain, generic · Computer and auxiliary outputs

P062A Fuel Pump A Control Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P062A is a plausibility check of the fuel pump control circuit, not a plain short or open. On Ford's 2023 diesels (F-250 to F-550 and 3.0 L) the lift pump module reports its status as a duty cycle; outside 78–82 % – the expected 'good' signal – the code sets after 0.5 s. On the Alfa Romeo Giulia 2.0 turbo (2017) P062A was a false trigger fixed by reprogramming the engine module, without parts. GM and Ford petrol engines do not use P062A; Ford reports duty cycle deviations there under P025B and P064A. Depending on the cause the pump runs on a substitute value or pressure drops, with lack of power or long cranking. Circuit faults are P0627–P0629, fuel pressure itself P0087 and P0190 ff.

Likely causes

Pump driver module faulty or reporting an error status
Engine module software (false trigger)
Contact problems or resistance in signal or supply wires
Pump stiff or overloaded

Symptoms

  • Check engine light on
  • Lack of power or stumbling
  • Delayed start
  • Often no noticeable symptoms (software case)

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–600
Time0.5–2.5 h

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

Parts involved

fuel pump relayfuel pump driver modulefuel pumpengine control module

Related codes

P0627P0628P0629P064AP025BP0087

References: law.cornell.edu, fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov.