BodyB1509

Caution

Severity: Caution - get it checked when you can

Vehicle control determines power system failure

25 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car

1What it means in plain English

A body system has a fault. Depending on the make, this range can include airbags and seat belts, windows, locks and climate control, and also charging, brake, oil or coolant sensors.

2Common causes

Wiring or connector fault
Faulty sensor or switch
Water or corrosion in a connector
Control module fault
Low battery voltage

3Can I drive?

Caution · drive with care

Do not assume this code is safe to drive. If it concerns the brakes, brake vacuum, charging/alternator, engine oil or coolant, have it diagnosed before driving. Airbags or seat belts may not work in a crash, and a brake or charging fault can leave the car unsafe or stranded. For convenience systems (windows, locks, climate), have it checked when convenient.

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 25

Brand	Code	Description	System
Ashok Leyland CV	B1509	No description available	Body
Mercedes-Benz	B1509	No description available	Body
BYD	B1509	Wrong installation of ECU Brand	Body
Chery	B1509	EEPROM Check Error Brand	Body
Daewoo	B1509	No description available	Body
DFFS	B1509	Vehicle control determines power system failure Brand	Body
DFFX	B1509	Wrong installation of ECU Brand	Body
Geely	B1509	Wrong installation of ECU Brand	Body
GM	B1509	No description available	Body
Great Wall	B1509	Wrong installation of ECU Brand	Body
Hafei	B1509	Wrong installation of ECU Brand	Body
Holden	B1509	Driver Door Lock Actuator Circuit Brand	Body
Honda	B1509	No description available	Body
Hyundai	B1509	No description available	Body
Land Rover	B1509	Digital Input Bank '2' Switch #1 Brand	Body
Mitsubishi	B1509	Wrong installation of ECU Brand	Body
Opel	B1509	No description available	Body
Peugeot	B1509	No description available	Body
Proton	B1509	Wrong installation of ECU Brand	Body
Saab	B1509	No description available	Body
Smart	B1509	No description available	Body
Sprinter	B1509	No description available	Body
Subaru	B1509	No description available	Body
Suzuki	B1509	Inside Air Temperature Sensor Circuit Low Brand	Body
Toyota	B1509	Vehicle control determines power system failure Brand	Body

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 B1509 and may be reported by some scan tools.

Brand	Code	Description	System
Mahindra	B150900	FL Door Handle Retract Switch Failed Brand	Body

6Related codes

Browse Bxxx codes or B150xx codes.