Code 23 RF Speed Sensor Continuity Fault
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 3,214
Likes: 101
From: Decatur, Alabama
Code 23 RF Speed Sensor Continuity Fault
Did the FSM trouble tree as best as I could. I had 1016 resistance in the internal sensor (good), pulled short wiring harness from wheel sensor to wheel well, ohm'd it...good. Check circuit 24 from ebcu wiring connector to tan wire at right front speed sensor no continuity, how in the h*ll do I trace that down? Also, I just today installed a new EBCU unit because the old one went bad, I am still not sure the new used one isnt bad. This is a pain, ever changed a ebcu? Not fun. I need knowledgeable help. PLEASE!
95 LT1
95 LT1
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 3,214
Likes: 101
From: Decatur, Alabama
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 3,214
Likes: 101
From: Decatur, Alabama
are you looking at 95 or 96 and VIN P NOT J FSM because they changed in 95. I am looking at mine still shows 22 hi 24 low at ebtcm connector. I have traced the wire with no obvious shorts or opens. When the book says does it show greater than 5 ohms, I have always either had continuity or not, dumb question but how do I measure ohms. I can measure voltage.
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Racer
Joined: Dec 2006
Posts: 499
Likes: 27
From: shapleigh maine
Just checked the pinout for the ebcm and it shows 22 and 24. Is 23 populated on your ebcm? As you probably know you want the tan and dark green wires. The pinout does not list a 23 but the wiring diagram does not show a 24. Not the first time there was a F.U. in service info.
Racer
Joined: Dec 2006
Posts: 499
Likes: 27
From: shapleigh maine
Sorry for the delay, I just drove home from work. Most open circuit failures for abs systems are sensors that go bad. Can you unplug the sensor and get an ohms reading of the sensor itself? Then compare it to the left front. They should be the same. As far as which one is right, Alldata says they edit out errors in the FSM, but who knows?
We will get through this.
We will get through this.