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MEFI 4 Output Tests |
ECM Pin # |
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General Warning #1 Output |
J1-21 |
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Buzzer Output |
J1-26 |
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RPM Controlled Output |
J1-8 |
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Oil Level Lamp |
J1-25 |
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Check Gauges Lamp |
J1-7 |
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Check Engine Lamp |
J1-9 |
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General Warning #2 Output |
J1-22 |
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Fuel Pump Output |
J1-23 |
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Power Balance Test |
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IAC Motor Reset |
MEFI 4A 10-Pin Diagnostic Connector
Remote Battery Posts
* Tech Tip - Title of tip *

Category: Electrical System
Subject: Remote Battery Posts
Details: Remote battery posts are required for the Diablo in the event of a jump start or trickle charging situation. Below are the parts which have been crafted for the Diablo. Working on the remaining parts to connect for proper power distribution.
Charging post bracket. This bracket would mount against the firewall or frame of the car.
Here''s the charging posts for the plate. Basically connect with 4 gauge wire and we''re set!
Steering Column Wiring
* Tech Tip - Title of tip *

Category: Electrical Wiring Harness
Subject: Steering Column Wiring Harness
Details: Below are the wiring color codes and pinouts for the steering column used in the Diablo.
| WIRE COLORS FOR : | COLOR | POLARITY | Extreme Diablo Steering Column |
| SECURITY | |||
| BATTERY | RED | + | IGNITION HARNESS |
| IGNITION | PINK | + | IGNITION HARNESS |
| STARTER 01 | YELLOW | + | IGNITION HARNESS |
| ALL DOOR TRIGGER | BLACK/BLU or WHITE | - | LEFT SIDE OF STEERING COLUMN |
| TRUNK TRIGGER | PINK/BLUE | - | LEFT SIDE OF STEERING COLUMN |
| REMOTE START | |||
| BATTERY | RED | + | IGNITION HARNESS |
| IGNITION | PINK | + | IGNITION HARNESS |
| IGNITION 02 | WHITE | + | IGNITION HARNESS |
| IGNITION 03 | + | ||
| ACCESSORY 1 | ORANGE | + | IGNITION HARNESS |
| STARTER 01 | YELLOW | + | IGNITION HARNESS |
| ANTI THEFT TYPE | RESISTOR BASED SYSTEM | ||
| KEY SENSE | LIGHT GREEN | - | AT SWITCH HARNESS |
| TACH | WHITE | - | |
| PARKING LIGHTS | BROWN | + | LIGHT SWITCH |
| DOOR LOCKS/ WINDOWS | |||
| POWER UNLOCK | WHITE | + | DRIVER KICK PANEL |
| POWER LOCK | BLUE | + | DRIVER KICK PANEL |
| CONVENIENCE | |||
| HEADLIGHTS | WHITE | + | STEERING COLUMN |
| LOW SPEED WIPERS | GRAY | + | WIPER SWITCH |
| AUDIO/MOBILE VIDEO | |||
| BATTERY | RED | + | IGNITION HARNESS |
| ACCESSORY 1 | ORANGE | + | IGNITION HARNESS |
| Connection for Remote Starter, Keyless Entry Wiring Information | ||
| Constant 12V+ | Red | Ignition Switch Harness |
| Starter | Yellow | Ignition Switch Harness |
| Ignition | Pink | Ignition Switch Harness |
| Ignition 2 | White | Must Use for Remote Start |
| Ignition 3 | Brown | Ignition Switch Harness |
| Accessory | Orange | Ignition Switch Harness (Heat/AC) |
| Tach | White | Coil |
| Brake Switch | White | Brake Switch |
| Trunk Release | Black/White (+) | Keyless Module in Trunk |
| Trunk Pin | Black (+) | Trunk LID Switch |
| Parking Lights | Brown (+) | Driver's Kick Panel Main Harness |
| Head Lamp | Blue (low) | Pink (High) Head Light Switch |
| Door Trigger | Light Green (-) L | Driver's Kick, Light Blue (-) R Passenger's Kick Isolate |
| Door Lock | Light Blue | Driver's Kick Reverse Polarity w/o Keyless |
| Door Unlock | White | Positive Trigger w/Keyless Entry |
| Horn Wire | Black (-) | Steering Column |
| Windows Up | LF=Dark Blue, RF=Light Blue, LR=Dark Green, RR=Light Green | |
| Windows Down | LF=Brown, RF=Tan, LR=Purple, RR=Purple | |
Rear Light Bar





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