Fault code lookup

PowertrainP128D

Caution

Severity: Caution - get it checked when you can

2-2 NG: appears to be faulty

11 brands affected · Description from Honda data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. Control module fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 11

BrandCodeDescriptionSystem
DaewooP128DNo description available Powertrain
EOBDP128DVippearm oljetrykksensor A fastlåst høy BrandPowertrain
GMP128DNo description available Powertrain
HoldenP128DFuel Rail Temperature Sensor 2 Signal Message Counter Incorrect BrandPowertrain
HondaP128D2-2 NG: appears to be faulty BrandPowertrain
MahindraP128DNo description available Powertrain
MitsubishiP128DCell monitor IC2 Balancer drive BrandPowertrain
OpelP128DNo description available Powertrain
PeugeotP128DNo description available Powertrain
ProtonP128D2-2 NG: appears to be faulty BrandPowertrain
SaabP128DNo description available Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P128D and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP128D00The initialization of the control unit takes too long. BrandPowertrain
Mercedes-BenzP128D77The initialization of the control unit takes too long. Commanded Position Not Reachable. BrandPowertrain

6Related codes

Browse Pxxx codes or P128xx codes.

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