ABS, VSS, and EVAP problems

[1badfox]

Hey guys I recently picked up a clean 00 ranger that has been 5.0 swapped. I'm a perfectionist so naturally I'd like to get the truck in perfect mechanical condition before I add any aftermarket parts.

Here's what I know. 2000 ranger 2wd, 99 explorer 5.0 2wd donor vehicle. It runs and drives great but I've got a few CEL's I'm trying to correct. The biggest ones being the ABS system and VSS codes. The EVAP code should be an easy fix so I'm not to worried about that one.

Here are the codes that a present.
C1155 left front speed sensor(VSS)
C1145 right front speed sensor(VSS)
C1230 rear speed sensor(VSS)
P0500 speed sensor A- VSS is not reading

C1095 hydraulic pump motor(ABS MODULE)
P078 transmission range sensor A
P0453 EVAP sensor high input switch- probably FTP needs replaced
P1000-not worried about this one
P1729 4x4 low trans fault?? I DON'T HAVE 4x4 so WTF?

So now for the questions. How do I get rid of the C1095 code? Someone removed the abs pump/ lines from the explorer abs assembly and plugged in the electronics only. In photo below.

Next question. Are the explorer front speed sensors something g that I can install on my 00 ranger? To possibly correct those codes?

And why would I have a p1729 4x4 trans fault? Both the ranger and explorer were 2wd.

 

[Earl43P]

It's pretty clear that the PCM came out of a 4wd Explorer.

The 4wd / 4WABS versions (Rangers and Explorers) of this vintage used the 4WABS Module to "condition" the rear axle VSS raw signal for use by the speedo/cruise/PCM.

Your VSS wiring must still be intact (VSS to GEM) if your speedometer is working. So, there is no need for the 4WABS module in your rig except to satisfy the PCM, which isn't practical.

I'd say find a correct PCM that supports 2wd V8, maybe a Crown Vic or Mustang?

I don't recall ever seeing a 2wd Explorer V8.


If you want the majority of the 2000 Ranger EVTM (electrical schematics), send me a PM (click on my username) and include your E-Mail address.


Welcome to The Ranger Station!

 

[1badfox]

Thank you very much for your reply. I'm having a hard time locating the information I need. Have searched for hours on end. The previous owner who actually did the 5.0 swap assured me that the explorer was a 2wd and that was the only parts used for the swap. Ill PM you my email address for those schematics. They may provide very useful tryi g to diagnose my problems.

 

[1badfox]

I will remove the PCM this afternoon and confirm weather or not it is for 2 or 4wd.

 

[Teddyzee]

For clarity, the 5.0 Explorer was available in both AWD and 2WD. I would doubt the ECU was different between them.

 

[1badfox]

Ok new plan of attack. Who can I get to remove the front wheel speed function, EVAP function, and ABS functions from my explorer EEC?

 

[RangerSVT]

The problem isn't in the ECU, it isn't the deciding factor in 2 or 4wd, the gem is. The Speedo system is different between the two trucks. The ranger goes from the vss in the rear axle, to the pcm, and sends a corrected signal from readings from the abs pump to the instrument cluster. The explorer goes from vss in rear axle to abs module to pcm, sending adjusted signal after abs module receives input from the G force transducer to the instrument cluster. The abs pump/module is different and needs to be used from the explorer, along with the transducer that's mounted on the frame below the door. For more info, read my sport Trac build thread, first post...

SVT

 

[1badfox]

The problem isn't in the ECU, it isn't the deciding factor in 2 or 4wd, the gem is. The Speedo system is different between the two trucks. The ranger goes from the vss in the rear axle, to the pcm, and sends a corrected signal from readings from the abs pump to the instrument cluster. The explorer goes from vss in rear axle to abs module to pcm, sending adjusted signal after abs module receives input from the G force transducer to the instrument cluster. The abs pump/module is different and needs to be used from the explorer, along with the transducer that's mounted on the frame below the door. For more info, read my sport Trac build thread, first post...

SVT

Thank you! Great read and very informative. Now question. My speedo is working(most of the time) so that would be an indicator the transducer is in place, correct? I'm using the explorer speedo. The guy who did the swap removed the explorer ABS pump but left the explorer ABS electronics installed and plugged in.(reference photos posted above) am I going to have to install a pump and get the ABS system functional? What a ****ing headache... Exactly why I stick with mustangs. I can build a 1600hp mustang but can't diag a 5.0 ranger.....

 

[RangerSVT]

The abs pump is not as important as the electronics. Truth be told, my abs pump is installed, but only the electronics are hooked up, my hardlines are bypassing the pump ( I don't like abs, while it is better to use this system, I use my truck offroad and don't need the brakes releasing just cause the abs is sensing a wheel locking up). Rangers don't have a transducer, only explorers. The Speedo/instrument cluster is no different from the ranger/explorer. In the connectors for the instrument cluster are two different locations for tach operation. No ground in both locations signals 4 cylinder use. A ground in one location signals 6, the other location signals 8...

SVT

 

[1badfox]

The abs pump is not as important as the electronics. Truth be told, my abs pump is installed, but only the electronics are hooked up, my hardlines are bypassing the pump ( I don't like abs, while it is better to use this system, I use my truck offroad and don't need the brakes releasing just cause the abs is sensing a wheel locking up). Rangers don't have a transducer, only explorers. The Speedo/instrument cluster is no different from the ranger/explorer. In the connectors for the instrument cluster are two different locations for tach operation. No ground in both locations signals 4 cylinder use. A ground in one location signals 6, the other location signals 8...

SVT

Ok so if I'm understanding this correctly from your thread and your replies here it appears the g force module has been spliced in correctly on my ranger. My speedometer works as it should(most of the time) but my cruise control is inoperable. The downshifts while braking are a bit harsh. I guess ill have to do some digging and see if that g force module was in fact installed.. Thank you for taking the time to assist me. Help is difficult to find with this swap.

 

[RangerSVT]

The Speedo/vss circuit system needs to operate correctly as the ECU adjusts shift points, torque converter lockup, as well as adjusting idle surge at the same time. You didn't mention, but if you have a manual trans, idle quality will suffer some as the ECU doesn't know if the trans is in gear or not since it doesn't see the trans, so a tune will be necessary. Of all the 01+ Ranger V8 swaps I've seen, I've only seen two or three that actually used the transducer...

SVT

 

[1badfox]

The Speedo/vss circuit system needs to operate correctly as the ECU adjusts shift points, torque converter lockup, as well as adjusting idle surge at the same time. You didn't mention, but if you have a manual trans, idle quality will suffer some as the ECU doesn't know if the trans is in gear or not since it doesn't see the trans, so a tune will be necessary. Of all the 01+ Ranger V8 swaps I've seen, I've only seen two or three that actually used the transducer...

SVT

Well I want this thing to run and operate like factory so ill go investigating and see if the transducer was installed or not. If not, ill do it and report back. Oh by the way, this is an auto trans. I'm not sure which one but its the one that was mated with the engine in the factory 99 explorer 2wd.

 

[Earl43P]

The problem isn't in the ECU, it isn't the deciding factor in 2 or 4wd, the gem is. The Speedo system is different between the two trucks. The ranger goes from the vss in the rear axle, to the pcm, and sends a corrected signal from readings from the abs pump to the instrument cluster. The explorer goes from vss in rear axle to abs module to pcm, sending adjusted signal after abs module receives input from the G force transducer to the instrument cluster. The abs pump/module is different and needs to be used from the explorer, along with the transducer that's mounted on the frame below the door. For more info, read my sport Trac build thread, first post...

SVT

Not so for 2000 Ranger RABS.
Refer to pages 42-2 and 59-1 in the EVTM that I sent you. GyBk wire.

RABS raw VSS signal goes to the GEM (and the RABS Module). The GEM conditions that signal and outputs to the speedo, Cruise and PCM on the GyBk wire.