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TuningBot DTC Database · v4.37.15

P0612 Fuel Injector Control Module Relay Control Circuit

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainFuelOBD2

What P0612 means

P0612
Fuel Injector Control Module Relay Control Circuit Generic · fuel Data confidence 90%

The control module detected improper operation of the Fuel Injector Control Module Relay Control circuit.

Symptoms

  • MIL illuminated
  • Possible rough running or misfire
  • Possible increased fuel consumption

Possible causes

  • Wiring
  • relay
  • fuel injector control module

Recommended checks

  • Read fuel trim / mixture adaptation values
  • Check injector circuits and compare cylinder balance
  • Check fuel pressure
  • Inspect for intake or exhaust leaks

Related and nearby codes

How to read P0612

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

612

Specific fault index within the subsystem.

Frequently asked questions about P0612

What does P0612 mean?

Fuel Injector Control Module Relay Control Circuit. The control module detected improper operation of the Fuel Injector Control Module Relay Control circuit.

Is P0612 generic or manufacturer-specific?

P0612 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0612 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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