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TuningBot DTC Database · v4.37.15

P1012 Toyota - Oil control valve/variable valve lift - LH bank - close malfunction

Manufacturer-specific interpretation for Toyota. All interpretations of P1012

P · PowertrainEngineOBD2

What P1012 means

P1012
Oil control valve/variable valve lift - LH bank - close malfunction Toyota · engine Data confidence 62%

The control module detected improper operation of the Oil control valve/variable valve lift - LH bank - close. This is the manufacturer-specific definition used by Toyota.

Possible causes

  • Wiring
  • oil control valve
  • variable valve lift oil pressure switch
  • ECM

Related and nearby codes

How to read P1012

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

012

Specific fault index within the subsystem.

Frequently asked questions about P1012

What does P1012 mean?

Oil control valve/variable valve lift - LH bank - close malfunction. The control module detected improper operation of the Oil control valve/variable valve lift - LH bank - close. This is the manufacturer-specific definition used by Toyota.

Is P1012 generic or manufacturer-specific?

P1012 is a manufacturer-specific code. In this database it is documented for: Toyota. The same number can mean something different on other brands.

Can TuningBot remove P1012 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

ECU tuningStage 1 dyno results for Toyota engines See the results →

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