• Register
Ask OBDII Question
Please write Make, Model and Year

Find local automotive repair shops in your area | Engine-Codes.com Local
Need A Repair Shop?
Find local automotive repair shops in your area.
Engine-Codes.com Local

28,730 questions

14,864 answers


18,222 users

Top Users

Reynaldo 6,859 Points
G37driver 3,517 Points
OBDIITech 2,611 Points
Carguy1 1,506 Points
OBDtech2 165 Points
corvette-78 127 Points
knowledge 1488 124 Points
Samat Bekov 117 Points
ptl 113 Points
sabtele 112 Points

have code c109e and c109d on 2010 f-150

Vehicle: 2010 ford f-150
asked Feb 12, 2013 by anonymous

1 Answer

C109E Vacuum sensor circuit fault

C109D Low vacuum condition.

Your best solution is to find 109d the low vacuum concern, the 109E is vacuum loss at the brake booster, this comes on due to low vacuum, Which is needed for ABS operation.Check your vacuum hoses for vacuum loss you also have vacuum port so you need to inspect that for vacuum loss also you need to check the brake booster including the brake booster check valve, you need a vacuum gauge to carryout the test, should read 15-22 In-Hg
answered Feb 12, 2013 by Reynaldo (6,859 points)

Related questions

1 answer
255 views asked Sep 4, 2013 by Jody Woodard
Home - About Engine-Codes - Privacy Policy - Terms and Conditions - Copyright 2010-2015 Engine-Codes.com

Engine-Codes.com - HelpForCars.net - Infinitihelp.com - Nissanhelp.com