HIGHFIVEBETA
07-12-2011, 06:55 PM
Ok. So i'm trying to figure out the wiring mess in my s14. I found a missing fuse to begin with. I'm using the s14 SR ac compressor. My lines are custom so they fit my compressor. I found the compressor was wired to the plug on the SR engine harness which I already researched was a no no. I plan on using the SR plug to splice on the appropriate wire which is the one from the engine room harness (which is how the system is supposed to be connected on usdm 240). My only issue is wiring the appropriate wires on the ecu side. With my additional research I found this on freshalloy:
STEP 2 WIRING
This was the simplest part , on the s14 the plug for the compressor is not on the engine harness as for the SR, the s14 has the plug on the driverside fender well , this comes from the main harness that goes by the driverside fender. Well since your using your original compressor you will find that it plugs right in just as it did before. However when you push the a/c button on the dashboard nothing happens. you will notice that all of the other controls work except for the a/c button. you might also notcie if you jump the relay in the fuse box that the clutch will engage and compressor will turno on, but we want it to work like stock with the button on the dasboard. So here is what you do
***** this is the big secret that the wiring people wont tell you ****
on the f3 conector (big white plug under dashboard near passenger foot well , you know the one you have to splice into to make your engine swap work) you need to splice together the following cables pin 16 yellow/ black to pin 43 or 46 (cant remeber now im at work) black/pink. and what do you know voila it works, push the a/c button a/c turns on, pust it again it turns off. 2 friggin wires, it was staring me in the face for like a week before i tried it , it seemed to easy, thats it just sauder those two wires togerther and ti will work like stock.
And then I find this:
F3/M63
1 (Black/Red)- F1/F18/F19/F20/F21/F31/F33 - Ignition Switch
2 (Black)- F14/F15 - [AT Models Only] AT Control Unit Ground
3 (Blue/Red)- F1 - Rear Defroster Sensor Signal from defroster to ECU
4 (Pink)- F9 - Windshield Wiper Amp
5 (Light Green)- F7 - Windshield Wiper Motor
6 (Light Green/Black)- F7 - Windshield Wiper Motor
7 (Light Greed/Red)- F7 - Windshield Wiper Motor
8 (Brown)- F9 - Windshield Wiper Amp
9 (Red)- F1/F2 - Battery power for ECCS Relay
10 (Brown)- F11/F17/F23 - Fused Power For IACV/Rear O2 Sensor/EGR/EVAP
11 [not used]
12 (Red)- F1 - Consult Connector Signal
13 (Yellow)- F14/F15 - Consult Connector Ground
14 (Green)- F1/F5 - ABS/ECU Consult Connector
15 (Green/White)- F1/F5 - ABS/ECU Consult Connector
16 (Yellow/Green)- F1 - VSP (Speedo Signal from Cluster to ECU)
17 (Orange/Blue)- F1 - Cooling Fan Relay 1 Trigger (Ground)
18 (Yellow/Red)- F1/F5 - Tach Signal from Cluster to ECU/ABS Module
19 (Blue/Yellow)- F9 - Windshield Wiper Amp
20 (Yellow)- F27 - Engine Temp from (gauge Cluster) Engine Temp Sensor
21 (Blue/White)- F1/F6/[F23] - AC Ambient Switch Signal (Ground)
22 (Orange)- F1 - Check Engine Light (MIL/CEL) from ECU (Ground switch)
23 (Blue/White)- F8 - Cruise Control Actuator
24 (Blue)- F8 - Cruise Control Actuator
25 -[not used]
26 (Black/Yellow)- F23 - IACV Regulator
27 (Black/Pink)- F1 - Fuel Pump Relay Trigger (ground)
28 -[not used]
29 -[not used]
30 -[not used]
31 (Purple/White)- F1 - Power Steering Oil Pressure Switch
32 (Yellow/Black)- F1 - AC/Defroster Switch
33 (Yellow/Blue)- F1 - [MT Models Only] 5th Position Switch Signal (Ground)
34 (Orange)- F1 - Ignition Start Switch from dash to ECU
35 [not used]
36 [not used]
37 (Orange/Blue)- F1 - (AC) PAIR
38 (Green/Black)- F1/F5 - ABS/ECU Consult Connector
39 (Green/Orange)- F25 - [AT Models Only] Throttle Position Switch Fused Ignition Power
40 (Green/Orange)- F1 - [MT Models Only] Neutral Position Switch Signal
41 (Blue/Green)- F1 - Cooling Fan Relay 2 Trigger (Ground)
42 (Purple)- F9 - [SE Models Only] Windshield Wiper Amp
43 (Black/Pink)- F1 - AC Relay Trigger from ECU (Ground)/Triple Pressure Switch
44 (Blue/Red)- F23 - IACV Solenoid Signal
45 (Orange/Black)- F1 - AC Triple Pressure Switch Signal (Ground)
46 (Orange/Blue)- F1 - AC/Thermo Control Amp
47 (Green/Yellow)- F8 - Cruise Control Actuator
48 (Blue/Black)- F8 - Cruise Control Actuator
Check out my highlighting. Now i'm assuming this guy was off?
On top of that i'm looking at pin 43 (supposed to be black/pink) and pin 32 (supposed to be yellow/black). I have my f3 harness right in front of me. pin 43 is a nothing in the connector and pin 32 has nothing in it either....
im mind boggled... any ideas on what to do from here?
STEP 2 WIRING
This was the simplest part , on the s14 the plug for the compressor is not on the engine harness as for the SR, the s14 has the plug on the driverside fender well , this comes from the main harness that goes by the driverside fender. Well since your using your original compressor you will find that it plugs right in just as it did before. However when you push the a/c button on the dashboard nothing happens. you will notice that all of the other controls work except for the a/c button. you might also notcie if you jump the relay in the fuse box that the clutch will engage and compressor will turno on, but we want it to work like stock with the button on the dasboard. So here is what you do
***** this is the big secret that the wiring people wont tell you ****
on the f3 conector (big white plug under dashboard near passenger foot well , you know the one you have to splice into to make your engine swap work) you need to splice together the following cables pin 16 yellow/ black to pin 43 or 46 (cant remeber now im at work) black/pink. and what do you know voila it works, push the a/c button a/c turns on, pust it again it turns off. 2 friggin wires, it was staring me in the face for like a week before i tried it , it seemed to easy, thats it just sauder those two wires togerther and ti will work like stock.
And then I find this:
F3/M63
1 (Black/Red)- F1/F18/F19/F20/F21/F31/F33 - Ignition Switch
2 (Black)- F14/F15 - [AT Models Only] AT Control Unit Ground
3 (Blue/Red)- F1 - Rear Defroster Sensor Signal from defroster to ECU
4 (Pink)- F9 - Windshield Wiper Amp
5 (Light Green)- F7 - Windshield Wiper Motor
6 (Light Green/Black)- F7 - Windshield Wiper Motor
7 (Light Greed/Red)- F7 - Windshield Wiper Motor
8 (Brown)- F9 - Windshield Wiper Amp
9 (Red)- F1/F2 - Battery power for ECCS Relay
10 (Brown)- F11/F17/F23 - Fused Power For IACV/Rear O2 Sensor/EGR/EVAP
11 [not used]
12 (Red)- F1 - Consult Connector Signal
13 (Yellow)- F14/F15 - Consult Connector Ground
14 (Green)- F1/F5 - ABS/ECU Consult Connector
15 (Green/White)- F1/F5 - ABS/ECU Consult Connector
16 (Yellow/Green)- F1 - VSP (Speedo Signal from Cluster to ECU)
17 (Orange/Blue)- F1 - Cooling Fan Relay 1 Trigger (Ground)
18 (Yellow/Red)- F1/F5 - Tach Signal from Cluster to ECU/ABS Module
19 (Blue/Yellow)- F9 - Windshield Wiper Amp
20 (Yellow)- F27 - Engine Temp from (gauge Cluster) Engine Temp Sensor
21 (Blue/White)- F1/F6/[F23] - AC Ambient Switch Signal (Ground)
22 (Orange)- F1 - Check Engine Light (MIL/CEL) from ECU (Ground switch)
23 (Blue/White)- F8 - Cruise Control Actuator
24 (Blue)- F8 - Cruise Control Actuator
25 -[not used]
26 (Black/Yellow)- F23 - IACV Regulator
27 (Black/Pink)- F1 - Fuel Pump Relay Trigger (ground)
28 -[not used]
29 -[not used]
30 -[not used]
31 (Purple/White)- F1 - Power Steering Oil Pressure Switch
32 (Yellow/Black)- F1 - AC/Defroster Switch
33 (Yellow/Blue)- F1 - [MT Models Only] 5th Position Switch Signal (Ground)
34 (Orange)- F1 - Ignition Start Switch from dash to ECU
35 [not used]
36 [not used]
37 (Orange/Blue)- F1 - (AC) PAIR
38 (Green/Black)- F1/F5 - ABS/ECU Consult Connector
39 (Green/Orange)- F25 - [AT Models Only] Throttle Position Switch Fused Ignition Power
40 (Green/Orange)- F1 - [MT Models Only] Neutral Position Switch Signal
41 (Blue/Green)- F1 - Cooling Fan Relay 2 Trigger (Ground)
42 (Purple)- F9 - [SE Models Only] Windshield Wiper Amp
43 (Black/Pink)- F1 - AC Relay Trigger from ECU (Ground)/Triple Pressure Switch
44 (Blue/Red)- F23 - IACV Solenoid Signal
45 (Orange/Black)- F1 - AC Triple Pressure Switch Signal (Ground)
46 (Orange/Blue)- F1 - AC/Thermo Control Amp
47 (Green/Yellow)- F8 - Cruise Control Actuator
48 (Blue/Black)- F8 - Cruise Control Actuator
Check out my highlighting. Now i'm assuming this guy was off?
On top of that i'm looking at pin 43 (supposed to be black/pink) and pin 32 (supposed to be yellow/black). I have my f3 harness right in front of me. pin 43 is a nothing in the connector and pin 32 has nothing in it either....
im mind boggled... any ideas on what to do from here?