Worn or failing fuel pump unable to deliver the commanded pressure or flow; Wiring faults in the pump control circuit, such as high resistance, chafing, short or open circuit; Corroded, loose or heat-damaged connectors or pins at the pump, control module or relay; Faulty fuel pump control module or driver, on vehicles that use a separate module; Low or unstable supply voltage from a weak battery, poor earth or charging fault; Blocked fuel filter or restricted fuel line, causing the pump to work outside its expected range; Fault within the engine control unit itself.

P062A

Fuel Pump A Control Circuit Range/Performance.

Generic
Powertrain
Generic code
High severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
6: AreaComputer and output circuits
2A: FaultThe specific fault in that area

What it means

P062A is the generic code for a range or performance fault in the fuel pump 'A' control circuit. The engine control unit commands the fuel pump, or its driver or control module, and the feedback or resulting pump behaviour does not match what it expects. The exact monitoring method varies by manufacturer and engine, so the details depend on the model.

Symptoms

Engine cranks but is slow to start or fails to start
Loss of power or hesitation under load
Engine stalling or cutting out intermittently
Rough running or misfire caused by fuel starvation
Engine warning light on, possibly with limp mode

Possible causes

Worn or failing fuel pump unable to deliver the commanded pressure or flowlikely
Wiring faults in the pump control circuit, such as high resistance, chafing, short or open circuitlikely
Corroded, loose or heat-damaged connectors or pins at the pump, control module or relaylikely
Faulty fuel pump control module or driver, on vehicles that use a separate modulepossible
Low or unstable supply voltage from a weak battery, poor earth or charging faultpossible
Blocked fuel filter or restricted fuel line, causing the pump to work outside its expected rangepossible
Fault within the engine control unit itselfrare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting engine speed, load, fuel pressure and battery voltage at the time of the fault
Check the battery condition and charging voltage, and look for any other voltage-related codes
Inspect the fuel pump relay, fuse, wiring and connectors for damage, corrosion, water ingress or heat marks
Check the pump and control module power and earth feeds for voltage drop under load
Using the manufacturer's procedure, monitor the commanded and actual fuel pressure on a live data display and compare them
Check the control signal from the engine control unit to the pump or module with a scope or multimeter, following the model-specific wiring diagram
Check fuel pump current draw and compare it with the manufacturer's specification, and inspect the fuel filter where one is serviceable
Check for relevant technical service bulletins or software updates for the specific model and engine

How to fix

Repair or replace damaged wiring, and clean or renew faulty connectors and terminals
Replace the fuel pump if its current draw or pressure output is out of specification
Replace the fuel pump control module if it is confirmed faulty, and carry out any adaptation the manufacturer requires
Restore proper power and earth supply by repairing poor earths or replacing the faulty relay or fuse
Renew a clogged fuel filter or repair restricted lines, then clear the code and road test to confirm it does not return

Can I keep driving?

High severity

Avoid driving until the fault is found, as the engine may stall or lose power without warning, which is unsafe in traffic. Fuel starvation under load can also stress the engine and fuel system.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.