BodyB1818

Serious

Severity: Serious - have it checked soon

Engine oil level failure

16 brands affected · Description from Toyota data.

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

Safety: This code relates to engine oil pressure or oil level. Low oil pressure can destroy the engine within minutes.

1What it means in plain English

The engine oil level sensor has failed, so a genuine low-oil warning may not be shown.

2Common causes

Low engine oil level or an oil leak
Faulty oil level sensor
Damaged wiring or connector
Wrong oil or a contaminated sensor
Body control module fault

3Can I drive?

Serious · drive with care

Check the oil level before driving and have the sensor repaired promptly. Do not rely on the oil warning light; if the oil level is low or an oil-pressure warning appears, stop the engine as soon as it is safe.

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 16

Brand	Code	Description	System
Daewoo	B1818	No description available	Body
DFFS	B1818	Engine oil level failure Brand	Body
Ford	B1818	No description available	Body
GM	B1818	No description available	Body
Holden	B1818	No description available	Body
Honda	B1818	No description available	Body
Hyundai	B1818	No description available	Body
Maserati	B1818	Rear Passenger Door Ajar-Circuit Short to Battery or Open Brand	Body
Mazda	B1818	No description available	Body
Opel	B1818	No description available	Body
Peugeot	B1818	No description available	Body
Proton	B1818	No description available	Body
Saab	B1818	No description available	Body
MG (SAIC)	B1818	The U_ESCL Level assigns a Voltage above 25.98V Brand	Body
Subaru	B1818	No description available	Body
Toyota	B1818	Engine oil level 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.

5Related codes

Browse Bxxx codes or B181xx codes.