Should only have to tap (not cut) into those 2 wires, then switch them to ground. Anyone tried this?



POWERTRAIN CONTROL MODULE C4 - BLACK 40 WAY CAV CIRCUIT FUNCTION
1 22WT CAN C BUS (+)
2 - -
3 20GY/YL (EXCEPT SRT) BACKUP LAMP SWITCH OUTPUT
4 20RD/BK (M/T) CLUTCH PEDAL POSITION SWITCH SIGNAL
5 18BR SENSOR GROUND
6 20BK SENSOR GROUND
7 20DG ACCELERATOR PEDAL POSITION SENSOR SIGNAL NO. 2
8 20GY ACCELERATOR PEDAL POSITION SENSOR SIGNAL NO. 1
9 - -
10 20BR/YL SENSOR GROUND
11 22DG CAN C BUS (-)
12 20DG/BK ENHANCED ACCIDENT REPORT DRIVER
13 - -
14 20BK (A/T) KICKDOWN SWITCH SIGNAL
15 20YL/BK OXYGEN SENSOR 1/2 SIGNAL
16 20YL/DG OXYGEN SENSOR 2/2 SIGNAL
17 20DG FUEL TANK PRESSURE SENSOR SIGNAL
18 20OR SENSOR GROUND
19 20YL/WT ACCELERATOR PEDAL POSITION SENSOR 5 VOLT SUPPLY
20 - -
21 - -
22 20GY OFF SIGNAL
23 20DG/RD ACCEL/SET SIGNAL
24 - -
25 20VT (A/T) FUSED IGNITION SWITCH OUTPUT
25 20VT (M/T) CLUTCH INTERLOCK SWITCH OUTPUT
26 20DG/BL ON SIGNAL
27 - -
28 20YL/DG DECEL/SET SIGNAL
29 22BL SCI TRANSMIT
30 20BL/RD RESUME SIGNAL
31 - -
32 20DG/YL SCI RECEIVE
33 - -
34 18GY/BL (SRT) CHARGE AIR COOLER CIRCULATION PUMP CONTROL
35 20PK/RD SENSOR GROUND
36 18BL/RD FUEL PUMP RELAY CONTROL
37 18BR/BL CHARCOAL CANISTER SHUTOFF VALVE CONTROL
38 20BR/VT AIR PUMP RELAY CONTROL
39 20GY RADIATOR FAN CONTROL
40 20BK/RD 5 VOLT SUPPLY

 

I just floor it and they come on....ask Gary scared the **** out of him when the car was on Jack stands....but I got the pump to turn on.....

 

floor it with the engine running or with the ignition on without the engine started?

 

My INBOX has another project to work the fans, but they are Pulse Width Modulated and a ground of open or 12v is not going to do it.

It needs a pulse train to drive the fan controller as I see it.

Woody

 

I originally thought that when i was looking at the wiring schematics but then noticed that this wire goes from the ecu to the other box and then to the "over engineered MB relay".



**** my first thought when i saw that huge box was I wonder if this can be yanked out and just a standard bosch relay wired in it's place lol

 

ITs not a relay, it a variable voltage speed controller. Starts out at 4 volts and goes up from there,Enjoy.

Woody ENJOY< its the weekend - parteee.