Damaged, chafed or corroded injector wiring or connector on Bank 1; Faulty fuel injector with a shorted or high-resistance coil; Poor power or earth supply to the engine control unit or injector circuit; Low or unstable battery or charging system voltage; Fault in the injector driver stage inside the engine control unit; Outdated control unit software where the manufacturer has issued a known fix.

P062D

Fuel Injector Driver Circuit Performance Bank 1.

Generic
Powertrain
Generic code
Medium severity

How this code is built

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

What it means

P062D is the generic code for a performance fault in the fuel injector driver circuit for Bank 1. The engine control unit monitors the injector driver circuitry, and it has seen behaviour that does not match what it commanded, or an internal driver check has failed. The code can point to the driver inside the control unit, the injector wiring, or the injectors themselves, depending on the engine and how the manufacturer set the monitor.

Symptoms

Engine warning light on
Rough idle or misfire on one or more cylinders
Hesitation or loss of power under load
Hard starting or long cranking
Poor fuel economy
Engine running in a reduced power mode

Possible causes

Damaged, chafed or corroded injector wiring or connector on Bank 1likely
Faulty fuel injector with a shorted or high-resistance coillikely
Poor power or earth supply to the engine control unit or injector circuitpossible
Low or unstable battery or charging system voltagepossible
Fault in the injector driver stage inside the engine control unitpossible
Outdated control unit software where the manufacturer has issued a known fixrare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting engine load, speed and voltage when the fault set, and look for related misfire or injector codes.
Check battery condition and charging voltage, as low voltage can upset injector driver monitoring.
Visually inspect the Bank 1 injector connectors and harness for chafing, heat damage, oil contamination, corrosion and pushed-back pins.
Check the engine control unit power and earth connections for voltage drop under load.
Measure the injector coil resistance on Bank 1 and compare it with the manufacturer's specification for that engine.
Check the injector driver signal with an oscilloscope or the live data to see whether the pulse looks correct and matches the command.
Swap injector connections or injectors between cylinders if the manufacturer allows, to see whether the fault follows the injector.
Check for any technical service bulletins or software updates for the engine, as the monitor and layout vary by model.

How to fix

Repair or replace damaged injector wiring and clean or renew faulty connectors.
Replace any injector that fails resistance or signal tests, following the manufacturer's procedure for coding or adaptation if needed.
Repair poor power or earth supplies to the control unit.
Restore the battery and charging system to good condition.
Repair or replace the engine control unit only after the wiring and injectors are proven good, and then code it as required.
Update the control unit software if a known fault in the calibration is confirmed.

Can I keep driving?

Medium severity

The car can usually be driven carefully for a short time, but get it checked soon. A failing injector driver can cause misfires, which may damage the catalytic converter, and the engine may stall or lose power without warning.

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