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P12B1

Reset fault (hardware reset fault / software reset fault / full reset fault)

P12B1 is described as “Reset fault (hardware reset fault / software reset fault / full reset fault)” in the Changan reference. Other reference families are shown below; select the scope relevant to your vehicle.

Manufacturer reference family

Changan: P12B1

en

Reset fault (hardware reset fault / software reset fault / full reset fault)

ru

TCU. Ошибка сброса - ошибки аппаратного сброса / программного сброса / полного сброса.

Reference namespace
changan
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Changan.

26 profiles assigned this reference family

2 more related profiles are listed in the vehicle directory.

Manufacturer reference family

ISUZU: P12B1

en

Variable intake manifold control valve feedback circuit voltage high

Reference namespace
isuzu
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: ISUZU.

1 profiles assigned this reference family

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope