In-Line Connector - C125 5.0L & C184 2.5L - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 05-13-2007
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In-Line Connector - C125 5.0L & C184 2.5L

Anybody know what the "In-Line" connector goes to?

My Ranger has C184 which is a round plug. The Explorer came with C125, which is rectangular.

Here are the wire colors and pinouts:

C184 - Ranger 2.5L
321 (GY/WH)
57 (BK)
113 (YE/LB)
113 (YE/LB)
570 (BK/WH)
441 (RD/YE)

C125 - In-Line for 5.0L
57 (BK)
321 (GY/WH)
253 (DG/WH)
258 (WH/PK)
441 (RD/YE)
570 (BK/WH)
113 (YE/LB)
254 (DG/WH)
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Old 05-13-2007
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That stuff is for the A/C clutch, A/C sensors, engine sensors, starter circuit, etc. Why can't you just use the 5.0 main engine harness and the compatible 5.0 subharness and avoid the connector incompatibility?
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Old 05-14-2007
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Wow thanks for the information! The only reason I haven't spliced the compatible 5.0 harness over is because I wanted to know what I was cutting before I cut it, in case of future problems.

This connector is actually a separate sub-harness from the main engine harness (batt cables, starter stuff, etc.).

Where did you find that information, and how can I look up wire colors/pinouts to tell me what the circuit is used for?

Thank you so much, Bob!
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Old 05-14-2007
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You need to buy the Helms EVTM manuals for the year Ranger and the year Explorer engine you are using. Wise to double check everything you are connecting between the Explorer wiring and the Ranger wiring. Don't assume just because the plugs connect that all of the circuits are identical. Many/Most are, but not all. Each model year Ranger and each model year Explorer had differences within the model and between models. Contact Helm Inc. and get the proper manuals. Extremely helpfull during my swap and others. (www.helminc.com)

Also, I used the explorer battery harness in my swap. Made things much easier.
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Old 05-14-2007
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Absolutely ^^^ The Ford/Helm Wiring Manuals are essential for this kind of work. Here's some info to get you started:

C184 - 2000 Ranger 2.5L
321 (GY/WH) A/C compressor clutch
57 (BK) ground
113 (YE/LB) Starter relay to starter solenoid
113 (YE/LB) Starter relay to starter solenoid
570 (BK/WH) Ground for A/C cutoff pressure switch
441 (RD/YE) A/C cycling switch to A/C pressure cutoff switch

C125 - 2001 5.0L
57 (BK) ground
321 (GY/WH) A/C compressor clutch
253 (DG/WH) Oil pressure sending switch - pin 8
258 (WH/PK) Engine oil temp/low level switch (Not used for Ranger)
441 (RD/YE) A/C cycling switch to A/C pressure cutoff switch
570 (BK/WH) Ground for A/C cutoff pressure switch.
113 (YE/LB) Starter relay to starter solenoid
254 (DG/WH) Engine oil temp/low level switch (Not used for Ranger) - pin 11
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Old 05-14-2007
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Wow great information! You guys are so helpful! I'll contacting Helms right now. I never new there was another version of the EVTMs out there other than the ones on the Ford Tech. Service Publication.
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Old 05-14-2007
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Quote:
Originally Posted by Needforspeed3685
I never new there was another version of the EVTMs out there other than the ones on the Ford Tech. Service Publication.
If you are using one of those Ford service CD's, it might be the same info. They usually include the EVTM (AKA 'Wiring Diagrams' on later models).

Does your info have schematics, connector diagrams, pinouts, etc.?
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Old 05-16-2007
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I just realized I don't have pin 253 (DG/W). They are both oil pressure sending switches, so is it okay if I butt off this wire since it isn't used with the Ranger? What exactly did it do?

Also, can I use the white/pink wire (258) as a signal for an oil temp gauge from AutoMeter?
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