Fault code lookup

PowertrainP1B37

Caution

Severity: Caution - get it checked when you can

GTOV three-phase power phase loss

12 brands affected · Description from BYD 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 12

BrandCodeDescriptionSystem
BYDP1B37GTOV three-phase power phase loss BrandPowertrain
CheryP1B37Temperature sensor fault BrandPowertrain
DaewooP1B37No description available Powertrain
EOBDP1B37Fout rempedaalsensor BrandPowertrain
GMP1B37No description available Powertrain
HoldenP1B37Battery Energy Control Module Hybrid/EV Battery Voltage Balance Processor 4 Performance BrandPowertrain
MitsubishiP1B37Break pedal stroke sensor fixed BrandPowertrain
OpelP1B37No description available Powertrain
PeugeotP1B37No description available Powertrain
ProtonP1B37Break pedal stroke sensor fixed BrandPowertrain
SaabP1B37No description available Powertrain
SuzukiP1B37Drive Motor 'A' Circuit DC Voltage Low 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.

5Related codes

Browse Pxxx codes or P1B3xx codes.

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