PowertrainP1099

Caution

Severity: Caution - get it checked when you can

Generator coil W current sensor 3

20 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

Safety: This code relates to the charging system. The battery may go flat and the car may stall.

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

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module fault

3Can I drive?

Caution · drive with care

The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.

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 20

Brand	Code	Description	System
Ashok Leyland CV	P1099	No description available	Powertrain
BAIC Motor	P1099	Intake manifold temperature sensor signal low Brand	Powertrain
BYD	P1099	NO. 154 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1099	Intake Manifold Runner Control: Electrical Malfunction Brand	Powertrain
Daewoo	P1099	No description available	Powertrain
DFXK	P1099	Intake manifold temperature sensor signal implausibly low Brand	Powertrain
EOBD	P1099	Generator-Spule W Stromsensor 3 Brand	Powertrain
Geely	P1099	Intake Manifold Runner Control: Electrical Malfunction Brand	Powertrain
GM	P1099	No description available	Powertrain
Holden	P1099	No description available	Powertrain
Isuzu	P1099	No description available	Powertrain
Mahindra	P1099	No description available	Powertrain
Maserati	P1099	No description available	Powertrain
Mitsubishi	P1099	Generator coil W current sensor3 Brand	Powertrain
Opel	P1099	No description available	Powertrain
Peugeot	P1099	No description available	Powertrain
Porsche	P1099	Luftmasse 2 unplaus. niedrig Brand	Powertrain
Proton	P1099	Generator coil W current sensor3 Brand	Powertrain
Saab	P1099	No description available	Powertrain
Toyota	P1099	Generator coil W current sensor 3 Brand	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 3

These 7-character codes are manufacturer-specific variants of P1099 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P109900	Kraftstofftemperatursensor - Elektrischer Fehler Low Brand	Powertrain
Sprinter	P109900	Kraftstofftemperatursensor - Elektrischer Fehler Low Brand	Powertrain
Peugeot	P109909	No description available	Powertrain

6Related codes

Browse Pxxx codes or P109xx codes.