B1318 code in owner complaints

Code B1318 is named in 8 US owner complaints, 1 of them (13%) after a crash. Models: 5, model years 2000–2009.

There is little data for this code or its meaning is ambiguous, so this page is not indexed.

What the code means

This is a manufacturer-specific code: the meaning depends on the make and sometimes on the year.

How to read B1318: the letter B means body (including airbags and belts); the second digit 1 marks a manufacturer code whose meaning is set by the make; the last three characters 318 identify the specific fault.

ABS/ESC codes: wheel speed sensors, the ABS hydraulic unit and pump, brake booster, pressure and yaw sensors. A hit to a wheel or suspension often damages the wheel speed sensor or its wiring, so on a damaged car this code is a reason to inspect the hub, knuckle and control arms, not just swap the sensor.

Key figures

Complaints with this code: 8
after a crash: 1 (13%)
Models: 5
Model years: 2000–2009

Which models and years

Models whose owners name this code (5). Years link to the model year problems page.

Model	Years	Complaints
Ford Windstar	2000, 2003	4
Ford Expedition	2005	1
Ford Focus	2002	1
Mercury Mariner Hybrid	2008	1
Suzuki SX4	2009	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Service brakes 4
Electrical system 3
Air bags 1
Engine 1
Exterior lighting 1
Fuel/propulsion system 1
Suspension 1
Wheels 1

Complaints by model year

2000 1
2002 1
2003 3
2005 1
2008 1
2009 1

What to do if an auction car has this code

Inspect the wheel and suspension on the impact side: the wheel speed sensor is often damaged together with the hub or knuckle.
Check whether the ABS and ESC lights stay on after start-up.
After replacing sensors or the hydraulic unit, bleeding and scan tool adaptation may be required.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

I took my car to Advanced Auto Parts and had my engine light diagnosed. Engine codes that resulted were: B1318, B1881, C1947, B2438, B2434, P0457. The representative tested my battery and found that the voltage was slightly lower than it should be. My concern is for my safety as well as the safety of others.
Ford Focus 2002 · 2023-01
We placed our obd scanner on our vehicle and this is what we pulled. P0302, P0305, P0316, C1235, C1185, C1198, C1194, C1254, C1246, C1250, C1242, C1214, C1210, C1103, C1410, C1404, B1318. We were told by many "service departments" a while back that these codes were not important. They cleared the codes every time.
Ford Windstar 2003 · 2015-03
My abs light stays on and traction control engages on dry pavement when turning corner leaving the van idle until I let off gas. Brought in and was told these codes C1235,C1410,B1318. Also about possible recall.
Ford Windstar 2000 · 2014-07

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.