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Visit my Facebook page for a lot of New Pictures & Harness Guides  - E-Mail: brendan@lt1swap.com

Wires highlighed in BLUE are wires needing power.  Pink wires get key 12v+, orange gets 12v+ battery.

 

 

 

 

 

 

 

 

 

C2 - Underhood Fuseblock 1999  
Pin Wire Color Circuit No. Function
A1 -- -- Not Used
A2 -- -- Not Used
A3 DK BLU 604 Air Conditioning Refrigerant High Pressure Cut-Out Switch
A4 -- -- Not Used
A5 -- -- Not Used
A6 -- -- Not Used
A7 GRY 120 Fuel Pump Motor Feed (Diesel)
A8 -- -- Not Used
A9 LT GRN 24 Back-Up Lamp Feed
A10 -- -- Not Used
A11 -- -- Not Used
A12 -- -- Not Used
B1 -- -- Not Used
B2 -- -- Not Used
B3 DK GRN 59 Air Conditioning Compressor Clutch Solenoid Feed
B4 -- -- Not Used
B5 LT BLU 203 Air Conditioning refrigerant High Pressure Cut-Out Switch
B6 PNK 239 Fused Ignition Positive Voltage - EVAP Emissions Canister Purge Valve
B7 DK GRN/WHT 465 Fuel Pump Relay Feed - PCM provides 12v+ to turn on FP Relay
B8 ORN 440 Fused BATTERY Feed - PCM
B9 -- -- Not Used
B10 -- -- Not Used
B11 -- -- Not Used
B12 -- -- Not Used
C1 -- -- Not Used
C2 -- -- Not Used
C3 -- -- Not Used
C4 PNK 239 Fused Ignition Positive Voltage - Mass Airflow Sensor
C5 -- -- Not Used
C6 -- -- Not Used
C7 -- -- Not Used
C8 -- -- Not Used
C9 -- -- Not Used
C10 PNK 1039 Fused Ignition Positive Voltage - Injectors 1,3
C11 PNK 439 Fused Ignition Positive Voltage - PCM
C12 PNK 1239 Fused Ignition Positive Voltage - Injectors 2,4
D1 BLK/WHT 1695 Four Wheel Drive Front Wheel Lock Telltale Feed
D2 -- -- Not Used
D3 DK GRN/WHT 459 Air Conditioning Compressor Control Relay Output - Coil
D4 -- -- Not Used
D5 -- -- Not Used
D6 -- -- Not Used
D7 -- -- Not Used
D8 PNK 539 Fused Ignition Positive Voltage - Heated Oxygen Sensors, (Both Front Sensors)
D9 -- -- Not Used
D10 PNK 1039 Fused Ignition Positive Voltage - Injectors 5,7
D11 PPL 6 Starter Solenoid Feed
D12 BLK 550 Ground
E1 BLK/WHT 1695 Four Wheel Drive Front Wheel Lock Telltale Feed
E2 PNK 1020 Fused Ignition Positive Voltage - Transmission, PCM
E3 LT GRN 275 Transmission Mounted Neutral Safety Switch Output - PARK
E4 -- -- Not Used
E5 -- -- Not Used
E6 PNK 1239 Fused Ignition Positive Voltage - Coils 2,4,6,8
E7 PNK 1239 Fused Ignition Positive Voltage - Injectors 6,8
E8 PNK 1539 Fused Ignition Positive Voltage - Heated Oxygen Sensors, (Both Rear Sensors)
E9 -- -- Not Used
E10 -- -- Not Used
E11 -- -- Not Used
E12 PNK 1039 Fused Ignition Positive Voltage - Coils 1,3,5,7
F1 -- -- Not Used
F2 PNK 1020 Fused Ignition Feed - PCM, Transmission Solenoids
F3 LT GRN/BLK 584 Fused Brake Transmission Shift Interlock Feed
F4 -- -- Not Used
F5 -- -- Not Used
F6 BLK/WHT 451 Engine Control Module Ground
F7 BLK 550 Ground
F8 -- -- Not Used
F9 PNK 839 Fused Ignition Positive Voltage
F10 PPL/WHT 1035 Starter Relay Feed - Coil
F11 YEL 1737 Transmission Mounted Neutral Safety Switch Output - Park/Neutral (Auto Trans)
F11 PPL/WHT 1035 Starter Relay Feed - Coil (Manual Trans)
F12 -- -- Not Used
C100 - Inline Harness Connector End View
Pin Wire Color Circuit No. Function
A LT BLU/BLK 396 Cruise Control Signal - Engaged (Gas)
       
B GRY 48 Clutch Switch Signal - Clutch Anticipate (Gas)
       
C PNK 1020 Fused RUN/CRANK Feed - Powers Transmission, PCM, Use 10A Fuse.
D DK GRN/WHT 817 Vehicle Speed Signal - 4000 Pulse Per Mile Signal
E PPL 420 Brake Pedal Switch Output - 12v+ with brakes NOT applied
F -- -- Not Used
G BRN/WHT 419 Check Engine Indicator Lamp Output - PCM Grounds to turn on Light
H DK GRN 1049 Serial Data Signal (Class 2) - OBD2 Port Pin 2
J TAN/WHT 331 Oil Pressure Sensor Signal
K WHT 121 Tachometer Signal - Tach signal, 4 cylinder signal
L -- -- Not Used
       
M YEL 710 Serial Data Signal (Class 2)
N BRN 241 Fused Ignition 3 Feed (Gas) - Front Axle Actuator Switch
P DK GRN 1614 Air Inlet Valve Motor Feed
R LT GRN/BLK 584 Fused Automatic Transmission Shift Lock Feed
S -- -- Not Used
C152 - Inline Harness Connector End View - NOTHING NEEDED ON THIS PLUG
Pin Wire Color Circuit No. Function
A BLK/WHT 1695 Four Wheel Drive Front Wheel Lock Telltale Feed
B -- -- Not Used
C GRY 474 Reference Voltage Feed - 5 Volt
D DK GRN 890 Fuel Tank Pressure Sensor Signal
E YEL/BLK 1827 Vehicle Speed Signal (VSS) - used for antilock brakes, not needed
F WHT 1310 Canister Vent Valve Solenoid Output
G ORN/BLK 510 Sensor Return (Fuel Level)
H -- -- Not Used
J BLK 470 Sensor Return
K PPL 1589 Fuel Gauge Sensor Signal
L -- -- Not Used
M -- -- Not Used
C153 - Inline Harness Connector End View
Pin Wire Color Circuit No. Function
A GRY/BLK 1694 S4WD Switch Signal - Low
B BLK/WHT 1695 S4WD Front Axle Lock TT (Except ATC )
C BRN 241 Fused Ignition Feed (S4WD)