Fault code lookup

PowertrainP13B1

Caution

Severity: Caution - get it checked when you can

ISG circuit

10 brands affected · Description from Toyota 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 10

BrandCodeDescriptionSystem
BYDP13B1NO. 178 battery voltage sampling wire loop fault BrandPowertrain
DaewooP13B1No description available Powertrain
EOBDP13B1ISG piiri BrandPowertrain
GMP13B1No description available Powertrain
HoldenP13B1Engine Oil Pressure Control Solenoid Valve High Control Circuit Low Voltage BrandPowertrain
OpelP13B1No description available Powertrain
PeugeotP13B1No description available Powertrain
SaabP13B1No description available Powertrain
SuzukiP13B1ISG Circuit BrandPowertrain
ToyotaP13B1ISG circuit BrandPowertrain

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 1

These 7-character codes are manufacturer-specific variants of P13B1 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP13B100The output for on-board electrical system switchover has an electrical fault or an open circuit BrandPowertrain

6Related codes

Browse Pxxx codes or P13Bxx codes.

OpenDTC - independent fault code reference