BodyB0938

Caution

Severity: Caution - get it checked when you can

Coolant level sensor circuit low

3 brands affected · Description from GM data.

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

Safety: This code relates to engine cooling or temperature. Overheating can damage the engine.

1What it means in plain English

The coolant level sensor circuit is reading low, so the coolant level may be low or the sensor may be faulty.

2Common causes

Low coolant level or a coolant leak
Faulty coolant level sensor
Damaged wiring or connector
Air pocket in the cooling system
Body control module fault

3Can I drive?

Caution · drive with care

Check the coolant level when the engine is cold. Have it diagnosed soon; if the temperature gauge climbs or the engine overheats, stop safely and let it cool.

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 3

Brand	Code	Description	System
Ford	B0938	No description available	Body
GM	B0938	Coolant level sensor circuit low Brand	Body
Saab	B0938	Coolant Level Sensor Circuit Low 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 B093xx codes.