P062D

Fuel Injector Driver Circuit Performance Bank 1

P062D is a generic OBD-II powertrain diagnostic trouble code: Fuel Injector Driver Circuit Performance Bank 1. It is logged by the engine control unit when the fuel/inj monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.

Code
P062D
Group
Powertrain
System
Fuel/Inj
Severity
Warning (MIL on, possible limp mode)
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What P062D means

P062D indicates that the powertrain control module (PCM), or the electronic fuel injection (EFI) controller, has detected a performance problem with the fuel injector driver circuit for Bank 1 (the bank containing cylinder number one). The injector driver is an integral part of the PCM/EFI controller; the module controls injector timing and pulse width by applying a precisely timed ground pulse to each injector circuit.

The code sets when the PCM detects an inconsistency between the injection command it issues and the injection confirmation feedback for one or more injectors on that bank. Although the fault is reported against the module's driver circuit, it is most often provoked by an external condition, a faulty injector, or open, shorted, corroded or poorly connected injector wiring, rather than by the module itself. A failing PCM is possible but comparatively rare.

When present, the affected cylinders may fuel poorly or intermittently, causing rough running, misfires, reduced power and lower fuel economy. Because any fuel injection fault can lead to driveability problems and catalyst damage, P062D should be treated as serious and diagnosed without delay, starting with the external injectors and wiring before the internal driver is condemned.

Common causes

Most-frequently reported root causes when P062D is logged.

  • 1
    Faulty fuel injector on Bank 1 drawing abnormal current.
  • 2
    Open or shorted injector wiring harness on the affected bank.
  • 3
    Corroded, loose or poor electrical connection at an injector or the PCM connector.
  • 4
    Damaged, burnt or chafed wiring or connectors in the injector circuit.
  • 5
    External short or overload that has stressed the internal injector driver.
  • 6
    Corrupted PCM software or calibration affecting injector control.
  • 7
    Failed internal PCM/EFI injector driver (comparatively rare).

Symptoms drivers notice

MIL illuminated with P062D stored.
Rough idle or misfire on one or more Bank 1 cylinders.
Reduced engine power and poorer fuel economy.
Hard start or extended crank time.
Misfire-related codes such as P0300-series may appear alongside P062D.

How to diagnose P062D

A typical diagnostic flow when this code is present.

  1. 1
    Record all DTCs and freeze frame data with a scan tool before any repairs.
  2. 2
    Check for companion misfire or injector-circuit codes that point to a specific cylinder or external fault.
  3. 3
    Inspect the Bank 1 injector wiring and connectors for shorts, opens, corrosion or damaged insulation.
  4. 4
    Measure injector coil resistance on the suspect cylinders and compare to specification.
  5. 5
    Use a DVOM and, where possible, an oscilloscope to verify the injector control (ground) pulse from the PCM.
  6. 6
    Confirm PCM supply voltage and ground integrity under load.
  7. 7
    Only after external injectors and wiring test good, consider a PCM reflash and, if the fault persists, internal driver failure.

Related powertrain codes

Frequently asked questions

What does Bank 1 mean in P062D?

Bank 1 is the side of the engine that contains cylinder number one; the injector driver performance fault is reported for the injectors on that bank.

Can a bad injector cause P062D?

Yes. A faulty injector or its wiring is the most common cause, and a shorted injector can stress the internal driver, so always test injectors first.

Will a PCM reflash fix this code?

Only if the cause is a software or calibration issue. If the internal driver hardware has failed, reprogramming will not resolve it.

How is P062D different from P0200-series injector codes?

P0200-series codes flag the external injector or its wiring directly, while P062D reports a performance problem in the module's injector driver circuit for Bank 1.

Disabling P062D in software

RaceTune can permanently disable P062D — and any other OBD-II diagnostic trouble code — on every ECU family we support. The monitor is disabled inside the ECU itself, so the fault stops being logged: the warning light stays off and the engine never enters limp mode for this code. The change is tied to your exact software version.

Permanent
The monitor is disabled in the ECU itself — not just cleared. It cannot return.
Tailored to your file
Each patch is matched to your specific software version — never a one-size-fits-all file.
Reversible
The original file is always preserved. Reflash the stock to return the ECU to factory state.

ECU families we can disable P062D on

We hold the DaVinci A2L disable definitions for these families, so the exact P062D path and mask addresses are mapped. verified marks a confirmed disable definition. We support many more — upload your file and our identifier will match it automatically.

  • Bosch EDC17C56 verified
  • Bosch MD1CP002 verified

Software modifications affect emissions compliance and are not road-legal in many jurisdictions. RaceTune service files are intended for motorsport, off-road, and export use.

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