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TuningBot DTC Database · v4.37.15

P1786 Diagnostic Trouble Code (3 interpretations)

3 manufacturer-specific interpretations across 3 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:HondaHyundaiVAG

Honda

1 interpretation
P1786
AT - poor gear shift - V6 Honda · engine Data confidence 62%

The control module detected a fault associated with the AT - poor gear shift - V6 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Communication wire
  • ECM

Hyundai

1 interpretation
P1786
Inhibitor Switch Circuit High Hyundai · engine Data confidence 62%

The control module detected that the signal in the Inhibitor Switch circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Hyundai.

VAG

1 interpretation
P1786
Reversing Light Circuit Open VAG · engine Data confidence 62%

The control module detected an interruption (open circuit) in the Reversing Light circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Related and nearby codes

How to read P1786

P

Powertrain: engine, transmission and driveline systems.

1

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

786

Specific fault index within the subsystem.

Frequently asked questions about P1786

What does P1786 mean?

Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the AT - poor gear shift - V6 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.

Is P1786 generic or manufacturer-specific?

P1786 is a manufacturer-specific code. In this database it is documented for: Honda, Hyundai, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1786 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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