97 F350 abs light on

[tony]

I have a 97 F350 7.3psd 4x4 with a single ABS sensor on rear axle- Had fuel pump issues last week and after the repair the ABS light came on. I have never had this light on before. Any way of troubleshooting this! any help would be great!!!

[SCUFFY828]

have codes pulled , more and likely on that year model it will be rear speed sensor i rear end ,very inexpensive ,and easy to replace

[Deeno]

Originally Posted by scott whisenhunt

have codes pulled , more and likely on that year model it will be rear speed sensor i rear end ,very inexpensive ,and easy to replace

Will abs codes transmit through the OBDII port on our PSD's?

[tony]

I have tried to communicte with the abs system thru the obd2 connector but get no reading , says I have to use another adapter and jumper wire to a connector up under dash that I haven't found yet( think its tucked up on steer column somewhere) although they say it could be behind or under the glove box, haven't had a chance to do it yet. I have an older snap-on mt2500 and I think its capable of reading the codes ( updates to 2000), should get a chance to check it out this afternoon... Thanks for your replies!!!

[SCUFFY828]

if it wont communicate with scanner , if im not mistaken ,youll find a connector on right side under glove box ,single wire may or may not have another end connected to it ,one side wil be black wire with orange tracer and other will be a solid red wire ,if it has that setup it does have memory ,disconnect the two wires and ground the black/orange wire to dash somewhere and it will flash the code out ,if the black/orange wire is just hanging there without being connected to anything means it doesnt have memory but you stil ground it to something , the difference is that the light has to be on to diagnose system if doesnt have red wire if that makes since

[EODguyJake]

Originally Posted by scott whisenhunt

have codes pulled , more and likely on that year model it will be rear speed sensor i rear end ,very inexpensive ,and easy to replace

I agree...check that rear wheel speed sensor...it shouldn't cost more than 80-100 beans to replace, parts and labor.

[Deeno]

Originally Posted by scott whisenhunt

if it wont communicate with scanner , if im not mistaken ,youll find a connector on right side under glove box ,single wire may or may not have another end connected to it ,one side wil be black wire with orange tracer and other will be a solid red wire ,if it has that setup it does have memory ,disconnect the two wires and ground the black/orange wire to dash somewhere and it will flash the code out ,if the black/orange wire is just hanging there without being connected to anything means it doesnt have memory but you stil ground it to something , the difference is that the light has to be on to diagnose system if doesnt have red wire if that makes since

Thanks for the info Scott. My dads 87 F-250 was set up pretty much the same way, only the connector was more towards the center of the dash, up underneath.

[dirtbuilt]

old thread, I know... but I just read this thread because I was having an issue in my 97. I grounded the wire like everyone is saying and had a code 12 - or 12 flashes.

DTC 12 - Loss of hydraulic fluid during anti-lock stop (per ALLDATADIY.com). Autozone pimps this site, so I signed up

Does anyone have codes listed anywhere?

They go on to say that a number of things can cause this DTC code.
-Low fluid level
-Leaks
-fluid level switch
-stuck float
-failed diode in stoplamp circuit
-damaged abs module
-damaged ignition switch
-ground short in 512 (T/LG) or 531 (DG/Y)

It also says this - "Code 12 is generated when the anti-lock electronic control module detects that the brake fluid level in the brake master cylinder reservoir is low for one or more seconds during an anti-lock stop. It can also be generated by a short in the red brake warning lamp circuit."

Okkkk... so I need to tear the truck apart? Lovely.


HAS ANYONE HAD A CODE 12? WHAT WAS IT? M/C?

Thanks!