Replaced PSOM, ABS Light On
Thread Starter
|
Mountain Pass
Joined: Dec 2019
Posts: 220
Likes: 13
From: VA
Replaced PSOM, ABS Light On
I replaced my PSOM to fix my flashing OD light and limp mode issue. Now my ABS light comes on before it shifts into 2nd gear every time I drive. Could this be due to larger tires and the PSOM not being calibrated to the same calibration as the old PSOM, or is it something else? Pulled the OBD2 codes, and there’s nothing showing there. I don’t know how to do the test to make the ABS light flash. Any help is greatly appreciated.
Lead Driver
Joined: May 2009
Posts: 6,812
Likes: 706
From: Tobyhanma, PA
You should definitely calibrate for you tire size. This would not only eliminate it as a possibility but also correct your speedometer.
I'm not sure what all causes that light to come on with an auto. On my manual it comes on if there's an issue with the sensor on the diff, which also what reads the speed for the speedometer.
I'm not sure what all causes that light to come on with an auto. On my manual it comes on if there's an issue with the sensor on the diff, which also what reads the speed for the speedometer.
Thread Starter
|
Mountain Pass
Joined: Dec 2019
Posts: 220
Likes: 13
From: VA
You should definitely calibrate for you tire size. This would not only eliminate it as a possibility but also correct your speedometer.
I'm not sure what all causes that light to come on with an auto. On my manual it comes on if there's an issue with the sensor on the diff, which also what reads the speed for the speedometer.
I'm not sure what all causes that light to come on with an auto. On my manual it comes on if there's an issue with the sensor on the diff, which also what reads the speed for the speedometer.
Thread Starter
|
Mountain Pass
Joined: Dec 2019
Posts: 220
Likes: 13
From: VA
Solved
Problem solved. I had a loose flasher relay from when I pulled the dash to chase electrical gremlins. Thanks for the help! Asking about turn signals got me thinking about the relay on the fuse panel in the cab.
Thread
Thread Starter
Forum
Replies
Last Post
hookedondiesel
1997 - 2003 F150
2
Dec 16, 2013 06:11 AM
powerstroke-99
Brakes, Steering, Suspension, Tires, & Wheels
1
Jun 1, 2005 03:03 PM
