I'm planning on using a 2003 2.3L Duratec in a 1961 Rambler American. The initial plan is to use the Ranger wiring harness and transfer the engine, harness, and five speed auto to the older car. While removing the harness I've discovered that this thing could have been packaged MUCH better!! I'm going to be deleting the anti-lock brakes, PATS, and some other things. I've already talked to a company that will reprogram the ECU to delete those. All I really need is engine and transmission control.

I ordered a wiring diagram and have looked through a 2003 Ranger Service manual. One thing I can't find mention of is some sort of controller on the right kick panel, near the roll-over safety switch. Any idea what that is?

I don't expect to get a lot of answers, but it's worth a try! This is in a single cab, plain-Jane truck. It has AC, PS, PB, and an AM/FM radio, but that's about all.

 

We are just about finishing up with a similar project. We put a 2.3 2007 Ranger engine in a 1935 car. The 2.3 was also from a base truck. The only other control box we saw on the truck was the air bag controller. We did not use that and we did not have to make any changes to the wiring or ECU to delete it. We only had PATS, evap sensor and rear O2 sensor turned off in the ECU. We are using the manual 5 speed transmission from the 2007 Ranger, so no transmission control required.

 

Driver_WT, I'd like to know how you did it then! The other controller is the GEM (General Electronic Module). It's on the right kick panel. Maybe they cleaned the wiring up in later models? What I have is a big messy bundle, so I wouldn't doubt it! I thought I'd be able to just pull the Ranger harness and lay it in the Rambler as I did a late 90s Jeep harness in another Rambler (4.0L w/AW4 auto trans), but it's just too much!

 

The 2007 Ranger 2.3 ECU has 3 connectors which match up with the three connectors on the engine harness - so we used the ECU and connected it to the three connectors on the engine harness.

There are two large connectors on left side of the engine which are part of the engine wiring harness (C110 and C133 maybe - I am not near my project or the Ranger Wiring Diagram book). Some of the wires in these connectors go to the fuel pump relay, clutch position switch, etc. So we ran wires from those two connectors to the other components such as fuel pump. These two connectors are part of the engine harness and connect the other components to the ECU.

We are using a GPS speedo plus electric gauges with their own sensors for oil pressure, coolant temp, voltage and fuel tank level.

We did not use the Battery Junction Box, instead, we made up our own relay panel with individual relays for the fuel pump, electric radiator fan, starter relay, etc. We wired the starter up via the ignition switch and wired in the clutch safety switch.

So we have the ECU, engine harness, the two large connectors on the left side in the engine compartment under the steering shaft, and the relay panel that we made up. The engine wiring harness also had wires going to the O2 sensors and the VSS.

We spent many hours with the Ranger Wiring Diagram manual trying to understand what had to be wired up and how it would be wired up, especially since we were not using the Battery Junction box.

 

Yeah, sounds like Ford changed nearly all the wiring between 2003 and 2007. Oh well, I only paid $500 for the wrecked 2003 Ranger, so I can't complain too much! I have a Ford factory wiring diagram coming. Was supposed to be here yesterday from FedEx (two day delivery from Bishko), but FedEx has no idea where it's at today! So much for working on the harness this weekend... unless by some chance it comes today!
Snowing out though.. in mid South Carolina! Supposed to get 3-6", I doubt FedEx will even run today,,, if they even know where the package is!

 

I purchased the 2003 Ford wiring diagram book. Pin-out for C-110, the main engine connector, worked out great. Then I started looking for the under hood to inside cab connector, C-144. Couldn't find it in the connector diagrams. This made me suspicious -- did I have a real early 2003 with 2002 connector and it was changed for 2003, or did I have a very late 2003 with a changed for 2004 connector? Hmmm... let's check the VIN!

Turns out I have a 2006, not a 2003!! It was advertised as a 2003 for sale for parts (hit in side hard, then rolled at least once down a ditch bank), so I never thought to check ant further. Stupid mistake!

Anyway, I chickened out on modifying the wiring harness myself. I think I could do it, now that I have the correct info, but I have to send the ECM for reprogramming anyway. So I'm saving myself time by spending $300-400 to have Mars "stand-alone" the harness. I called and spoke to "John" about it. They don't normally do standard 2.3L harnesses, just Eco-Boost, but he saw no reason they shouldn't be able to. I'm sending the under hood harness, PCM, detailed letter of what I'm doing, and threw in the pin-outs of the two connectors and the Ford circuit number list I made from the 2003 wiring diagram as well.

Photos of the Ranger when I picked it up




And where the engine is going...

 

This is the circuit number list I made. Didn't see how to post it as a file. Ford Circuit Numbers - circa 2000+

derived from 2003 Ranger wiring diagrams



Number – Function



1 – Horn feed

2 – Right front turn light feed

3 – Left front turn light feed

4 – Alternator regulator “S” terminal

5 – Right rear turn light feed

6 – Horn relay, control



8 – +12V, switch in RUN position

9 – Left rear turn light feed

10 – +12V at all times (fused)

11 – Tachometer signal

12 – +12V w/high beams on

13 – +12V w/low beams on

14 – +12V, exterior lamps

15 – +12V w/headlights on

16 – +12V, switch in START and RUN position, fused



19 – +12V w/headlights on



29 – fuel gauge sending unit (fuel pump module)



31 – Oil pressure sending unit

32 – +12V, switch in START position

33 – +12V, switch in START position

34 – +12V, switch in START and RUN position, fused

35 – Alternator regulator, “F” terminal on Alt.

36 – +12V at all times (not fused) to Alternator

37 – +12V at all times (fused)

38 – 914 – SCP buss, POSITIVE

39 – Engine coolant temp sender, input

40 – Cigar lighter feed



44 – Turn signal flasher, to switch



49 – Trailer GROUND

50 – Trailer brakes



52 – Left rear signal light feed

53 – Interior light relay, switched power, output

54 – +12V at all times (fused)



55 – Cargo light output

56 – Wiper hi/low relay, switched power, high

57 – GROUND







Number – Function



58 – Wiper hi/low relay, switched power, low

59 – Heated exterior mirror



63 – +12 V, switch in RUN or ACC position, fused

64 – Right rear signal light feed







70 – ISO buss



74 – Heated oxygen sensor, input



85 – Seat belt buckle switch, input



89 – Signal return, O2 sensor, 2.3L/3.0L



91 – Canister vent



94 – Heated O2 sensor, input

95 – Ignition coil

96 – Ignition coil

97 – Ignition coil, V6



106 – Low fuel light

107 – PCM programming signal



113 – Starter motor relay



117 – Door lock, output

118 – Door unlock, output

119 – Door lock, control



120 – Door unlock, control



126 – Courtesy light switch



128 – Brake fluid level



131 – Cigar lighter light feed



134 – PCM intermediate shaft speed sensor (auto trans)



136 – Trans output shaft speed (OSS) sensor, PCM

137 – +12V, switch in RUN and ACC position, fused



140 – +12V, in reverse



151 – Cruise control speed switch, input



158 – key warning switch, input



162 – Park brake switch

163 – Driver door unlock relay, switched power



169 – Radio subwoofer POSITIVE

170 – Window safety relay, switched output



172 – Radio subwoofer NEGATIVE



176 – Subwoofer POSITIVE



179 – Subwoofer NEGATIVE



181 – +12V at all times (fused)



191 – EVAP canister purge valve (PCM)



195 – +12V at all times (fused)

196 – +12V at all times (fused)



199 – Digital auto trans range sensor, TR3A

199 – Clutch pedal position switch, to PCM



203 – Cruise control set indicator



206 – Trailer tow connector GROUND



224 – PCM to trans OD cancel switch



228 – Engine cooling fan relay, switched output



237 – Transmission shift solenoid A

238 – Fuel pump relay, switched power, output



253 – Oil pressure sending unit



260 – Blower motor relay, control

261 – Blower motor, to switch, high



264 – Idle air control (IAC) valve, control



276 – +12V, switch in RUN position, fused



282 – Camshaft position sensor, input



297 – +12 V, switch in RUN or ACC position, fused

298 – +12V, switch in RUN position, fused



306 – Brake pedal position switch, input

307 – Deactivator switch, input



310 – Knock sensor

311 – Knock sensor, (4.0L @ PCM)



313 – Right front window switch feed, UP

314 – Right front window switch feed, DOWN

315 – Transmission shift solenoid B



321 – A/C clutch relay, switched output



325 – Starter relay control



329 – +12V, switch in START position, fused

(switched power to starter solenoid)

330 – Power steering pressure switch, input, 2.3L

331 – A/C clutch relay, control



333 – Window motor feed, UP

334 – Window motor feed, DOWN



335 – EGR stepper motor, A1, 2.3L

336 – EGR stepper motor, A2, 2.3L

337 – EGR stepper motor, B1, 2.3L

338 – EGR stepper motor, B2, 2.3L



343 – Anti-theft indicator, input



347 – A/C clutch relay, switched output

348 – A/C demand signal

349 – Crankshaft position sensor (CPS) NEGATIVE

(POSITIVE at PCM)

350 – Crankshaft position sensor (CPS) POSITIVE

(NEGATIVE at PCM)



351 – reference voltage (+5V?)

352 – EGR differential pressure switch, input 4.0L



354 – Engine coolant temp sensor, input

355 – Throttle position sensor (TPS) input



358 – MAP sensor, to PCM, 2.3L

359 – Signal return (PCM), 4.0L O2 sensor

(359 – Blend door actuator POSITIVE)

360 – EGR vacuum regulator control, 4.0L

361 – +12V, switch in START and RUN position, fused



364 – +12V, switch in RUN position, fused



371 – Blower motor relay, switched output



374 – Trailer tow connector, output



378 – +12V at all times, not fused



383 – Emergency flasher feed



385 – +12V at all times, fused



387 – Oxygen sensor heater

388 – Oxygen sensor heater

389 – Oxygen sensor heater



392 – Heated O2 sensor, input



396 – Fuel sender logic GROUND



398 – GROUND



400 – Accessory relay, switched power, output



435 – Signal return (4WD)



441 – A/C pressure switch



460 – +12 at all times, fused



463 – Neutral safety switch, input

464 – Engine coolant temp sender, input, 2.3L

465 – 4WD control module, to 4WD switch



474 – Fog lamp relay, control



477 – Fog lamp relay, output, to fog lamps

478 – Fog lamp relay, output to lamps



480 – Torque converter clutch solenoid



483 – +12 at all times, fused

484 – Headlight switch, on input



511 – Brake pedal position switch, stop lamps

512 – Brake indicator, control



514 – Wheel speed sensor, right front POSITIVE



516 – Wheel speed sensor, right front NEGATIVE

519 – Wheel speed sensor, left rear NEGATIVE

521 – Wheel speed sensor, left front POSITIVE

522 – Wheel speed sensor, left front NEGATIVE

523 – Wheel speed sensor, right rear POSITIVE

534 – +12V at all times, fused



540 – Right/left mirror movement

541 – Up/down mirror movement



543 – Right/left mirror movement

544 – Up/down mirror movement



546 – +12V, switch in START and RUN position, fused



554 – +12V at all times (fused)

555 – Fuel injector 1, control

556 – Fuel injector 2, control

557 – Fuel injector 3, control

558 – Fuel injector 4, control

559 – Fuel injector 5, control, V6

560 – Fuel injector 6, control, V6



569 – Brake pedal position switch, to stop lights

570 – GROUND



584 – +12V, switch in START and RUN position, fused



603 – Anti-lock brake indicator, control



607 – Passenger air bag, feed, monitor

608 – Air bag indicator, control



614 – Driver air bag, feed, monitor

615 – Driver air bag, return

616 – Passenger air bag, return



627 – Door ajar indicator, control



632 – +12V, high beams on



640 – +12V, switch in START and RUN position, fused



645 – +12V at all times (fused)

646 – Wiper run/park relay, control

646 – Wiper high/low relay, control



649 – Air bag dedicated GROUND



653 – Electronic thermostat, to PCM, 2.3L



658 – Malfunction Indicator Light (MIL)



660 – Blend door actuator NEGATIVE



671 – Wiper run/park relay, switched output



676 – Cruise control deactivator switch GROUND



679 – Vehicle speed sensor (VSS)

680 – Wiper/washer delay input



684 – Wiper/washer input



686 – Washer motor relay, control

687 – +12V, switch in RUN position (fused)



693 – +12V at all times (fused)

694 – Audio GROUND





704 – +12V at all times (fused)

705 – Battery saver relay, switched power



743 – Intake air temp sensor (IAT), input



752 – Blower switch speed control, to resistor



754 – Blower switch speed control, to resistor



760 – Door ajar, right rear

761 – Door ajar, right front

762 – Motor position 1 (4WD)

763 – Motor position 2 (4WD)

764 – Motor position 3 (4WD)

765 – Door ajar, left front



770 – Motor position 4 (4WD)

771 – Motor position 5 (4WD)



773 – Blend door actuator, wiper



777 – 4WD control module, to T-case

778 – 4WD control module, to T-case



783 – 4WD indicator, high

784 – 4WD indicator, low

785 – +12V at all times (fused), 4.0L



787 – Fuel pump, power



791 – Fuel tank pressure transducer sensor



797 – +12V at all times (fused)



800 – Left rear speaker POSITIVE

801 – Left rear speaker NEGATIVE

802 – Right rear speaker POSITIVE

803 – Right rear speaker NEGATIVE

804 – Left front speaker POSITIVE

805 – Right front speaker POSITIVE



810 – Brake pedal position switch, input

811 – Right front speaker NEGATIVE



813 – Left front speaker NEGATIVE



815 – Radio right front speaker NEGATIVE

816 – Radio right front speaker POSITIVE



819 – Radio left front speaker NEGATIVE

820 – Radio left front speaker POSITIVE



828 – +12V at all times (fused) subwoofer

829 – Radio remote



848 – Cruise control GROUND



871 – Seat belt indicator, control



904 – Gen/Alt light

903 – Window motor feed, DOWN (dr side front)



911 – Trans control indicator light



914 – SCP buss, POSITIVE

915 – SCP buss, NEGATIVE



923 – Transmission fluid temp sensor, input

924 – Transmission shift solenoid D

925 – Trans electronic pressure control solenoid

926 – Fuel pump relay, control



931 – +12V at all times (fused)

932 – High beam lamp, feed



941 – Windshield washer pump, feed



945 – Mirror motor feed



956 – +12V at all times (fused)



962 – Trailer tow relay, switched output



967 – Mass airflow sensor, output

968 - Mass airflow sensor, signal return

969 – Mass airflow sensor GROUND

970 – Turbine shaft speed sensor (trans)

971 – Transmission shift solenoid C



977 – Brake indicator, control



991 – Master window adjust switch feed, DOWN

992 – Master window adjust switch feed, UP



995 – Window motor feed, DOWN

996 – Window motor feed, UP



999 – GEM/central security module light

1000 – +12V, switch in START position, fused

1001 – +12V, switch in START position, fused

1002 – +12V, switch in RUN or ACC position, fused

1003 – +12V, switch in RUN position, fused



1005 – Battery saver relay, output



1007 – One-touch window relay output (to GEM)



1008 – Interior light relay, control



1013 – GEM/central security module light, signal



1017 – Check gas cap indicator light



1043 – Trailer tow relay feed, fused



1049 – +12V at all times (fused)



1055 – Left headlight low beam, fused

1056 – Right headlight low beam, fused



1079 – Driver seat belt retractor pretensioner, feed

1080 – Driver seat belt retractor pretensioner, return

1081 – Passenger seat belt retractor pretensioner, feed

1082 – Passenger seat belt retractor pretensioner, return

1083 – Tone driver, input



1093 – +12V, switch in START position, neutral or park



1101 – +12V at all times (fused)

1102 – Cylinder head temperature sensor



1107 – Swirl control monitor, 2.3L



1112 – Passenger air bag deactivation switch, input

1113 – Passenger air bag deactivation switch, light, control



1143 – Digital transmission range sensor, TR4

1144 – Digital transmission range sensor, TR1

1145 – Digital transmission range sensor, TR2



1050 – +12V at all times (fused)



1059 – +12V at all times (fused)



1079 – Driver seat belt retractor pretensioner, feed

1080 – Driver seat belt retractor pretensioner, return

1081 – Passenger seat belt retractor pretensioner, feed

1082 – Passenger seat belt retractor pretensioner, return



1215 – TX signal

1216 – RX signal



1273 – Knock sensor, 2.3L/3.0L @ PCM

1276 – Swirl control solenoid valve, to PCM, 2.3L



2037 – Battery cable POSITIVE



2057 – Battery cable NEGATIVE



3702 – Engine cooling fan relay control