Wiring question, 01 Explorer/98 Ranger 42 PIN

[Jbrown1238]

Here is the combination:

Vehicle: 1998 4cly, 5-speed, coil spring, 2wd Regular cab Ford Ranger.
Engine, PCM, and Harness: 2001 Mercury Mountaineer 5.0 V8.

Here is the planned combination:

5.0 V8, T-5 5 speed, PATS flashed/disabled.

Current status:

I have collected almost all of the necessary parts and I am currently sorting out questions and potential problem areas before the 1998 Ranger is removed from daily driver service. I have the EVTM’s for the 2001 Explorer/Mountaineer and the 1998 Ford Ranger. I have compared all of the circuits on the two 42 pin connectors and confirmed that all the circuits are identical with the following exceptions.

Example is from the 2001 Explorer 42 PIN connector.

PIN #13, Circuit #1215, TX signal
PIN #23, Circuit #343, Anti Theft indicator input
PIN #26, (Circuit #253 on the Ranger) empty and not used on the Explorer
PIN #27, Circuit #305, Message Center Switch input
PIN #28, Circuit #394 & #325, #394 is unknown, #325 is the Starter Relay Switch
PIN #32, Circuit #1216, RX Signal
PIN #38, Circuit #357 & #463, #357 is PCM to GEM, #463 is unknown

Here are the questions:

1. Since the PATS system will be disabled can most or all of these circuits be left alone as is? Will any of them need to be spliced in order for the vehicle to start or run properly?

2. After studying the EVTM I feel confident that PIN #13, #23, #32, #38 are all PATS circuits related to the PATS system and should not be of concern. Is this correct or do they have other functions?

3. I am not sure about PIN #27, #28, #38. Can anyone identify/explain these circuits?

4. I think PIN #28, circuit #325 (Starter Relay Switch) will need to be addressed in order for the vehicle to start. Any suggestions?

Thank you in advance for any help offered.

 

[V8 Level II]

Here is the combination:

Vehicle: 1998 4cly, 5-speed, coil spring, 2wd Regular cab Ford Ranger.
Engine, PCM, and Harness: 2001 Mercury Mountaineer 5.0 V8. PATS flashed/disabled.

This can be tricky without having access to the actual vehicle but I'll take a shot at it. Be sure to double check against the real harnesses and connectors.


42-pin:

PIN #13, Circuit #1215, TX signal PATS. Not needed when PATS is disabled.

PIN #23, Circuit #343, Anti Theft indicator input Not needed. Ex Circuit 343 is powered from PATS. 98 Ranger Circuit 343 is powered from the RAP Module (if equipped)

PIN #26, (Circuit #253 on the Ranger) empty and not used on the Explorer Dark green/white to the low oil pressure switch. My 98 Ranger and 2000 Explorer manuals show this as the same pin 26 on both vehicles. If the 2001 Ex documentation shows it differently, check for the DG/WH in the square 12 pin connector on the driver side.

PIN #27, Circuit #305, Message Center Switch input Fuel Flow Input from PCM to Message Center / Trip computer. Not needed without Message Center.

PIN #28, Circuit #394 & #325, #394 is unknown, #325 is the Starter Relay Switch Not needed. Not needed. Circuit 394 orange/black is for the Explorer's optional load leveling air suspension.

PIN #32, Circuit #1216, RX Signal PATS. Not needed when PATS is disabled..

PIN #38, Circuit #357 & #463, #357 is PCM to GEM, #463 is unknown Circuit 357 is throttle position; 463 is auto trans neutral position. Not sure but these may be used for the "Torque on Demand" transfer case of the 4x4 4.0 Ex. Neither should be needed for a 2WD Ranger or a 5.0 Explorer.

 

[Jbrown1238]

This can be tricky without having access to the actual vehicle but I'll take a shot at it. Be sure to double check against the real harnesses and connectors.


42-pin:

PIN #13, Circuit #1215, TX signal PATS. Not needed when PATS is disabled.

PIN #23, Circuit #343, Anti Theft indicator input Not needed. Ex Circuit 343 is powered from PATS. 98 Ranger Circuit 343 is powered from the RAP Module (if equipped)

PIN #26, (Circuit #253 on the Ranger) empty and not used on the Explorer Dark green/white to the low oil pressure switch. My 98 Ranger and 2000 Explorer manuals show this as the same pin 26 on both vehicles. If the 2001 Ex documentation shows it differently, check for the DG/WH in the square 12 pin connector on the driver side.

PIN #27, Circuit #305, Message Center Switch input Fuel Flow Input from PCM to Message Center / Trip computer. Not needed without Message Center.

PIN #28, Circuit #394 & #325, #394 is unknown, #325 is the Starter Relay Switch Not needed. Not needed. Circuit 394 orange/black is for the Explorer's optional load leveling air suspension.

PIN #32, Circuit #1216, RX Signal PATS. Not needed when PATS is disabled..

PIN #38, Circuit #357 & #463, #357 is PCM to GEM, #463 is unknown Circuit 357 is throttle position; 463 is auto trans neutral position. Not sure but these may be used for the "Torque on Demand" transfer case of the 4x4 4.0 Ex. Neither should be needed for a 2WD Ranger or a 5.0 Explorer.

I did see your reply to the same question on another forum. Once again, thank you very much for your feedback and help with this information.

Jeff