
Chassis Harness Wiring Guide
IGNITION / STARTER
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Black w/ Yellow — Starter Signal
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Black w/ Red — 12V Switched Power / Power to Switch Panel
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White — Constant 12V Power
⸻
TURN SIGNAL WIRING
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Light Green w/ Black — Power to Turn Signal Circuit
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Green w/ Black — Left Turn Signal
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Green w/ Yellow (2 Dots) — Right Turn Signal
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REAR SECTION
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Green w/ Black — Left Turn Signal
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Green w/ Yellow — Right Turn Signal
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Red w/ Blue (2 Dots) — Running Lights
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Red w/ Green — Brake Lights
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LIGHTING POWER
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Red w/ Blue (1 Dot) — 12V Power to Headlights
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Green w/ Red (1 Dot) — Constant Power
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FUEL SYSTEM
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Black w/ Yellow — Fuel Pump
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Green w/ Blue — Fuel Level Sender
CLUSTER WIRING
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White w/ Red → — Alternator Warning / Charge Light
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Yellow w/ Green → — Speed Sensor Signal to ECU
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Yellow w/ Blue → — Vehicle Speed Sensor (VSS) at Transmission
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Green w/ Blue → — Fuel Level Sending Unit
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Green → — 12V Ignition-Switched Power / Main Cluster Power
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Yellow w/ Red → — Tachometer Signal from ECU
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Red w/ Black →— Constant 12V Power for Clock
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Blue w/ Black → — Coolant Temperature Signal
CLUSTER GROUNDS
The following wires are Grounds:
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Black
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Yellow w/ Black
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Red w/ Orange
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Black
CLUSTER BACKLIGHTING
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Red w/ Blue (1 Dot) — Cluster Backlight Power / Active When Exterior Lights Are Turned On
FRONT HEADLIGHTS
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Red w/ Green — Power
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Red w/ Black — Power
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Pink — Ground
HEADLIGHT 12V POWER
Either of the following circuits can be used for 12V headlight power:
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Red w/ White — 12V
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Red w/ Blue — 12V
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POWER WINDOWS
Driver-Side Plug
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Black — Ground
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White w/ Black — Power to Windows
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Red w/ White — Connects to Red w/ White on Opposite Side
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Red w/ Black — Connects to Red w/ Black on Opposite Side
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Blue w/ White — Connects to Brown w/ White on Opposite Plug
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Blue w/ Yellow — Connects to Brown on Opposite Plug
DOME LIGHT
Center / Middle Section
● Red w/ Black — 12V Dome Light Power
S13 240SX
Analog / Non-Digital Cluster Wiring Guide
CLUSTER WIRING
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White w/ Red → — Alternator Warning / Charge Light
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Yellow w/ Green → — Speed Sensor Signal to ECU
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Yellow w/ Blue → — Vehicle Speed Sensor (VSS) at Transmission
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Green w/ Blue → — Fuel Level Sending Unit
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Green → Green — 12V Ignition-Switched Power / Main Power to Cluster
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Yellow w/ Red → — Tachometer Signal from ECU
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Red w/ Black →— Constant 12V Power for Clock
-
Blue w/ Black → — Coolant Temperature Signal
⸻
CLUSTER GROUNDS
The following wires are Grounds:
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Black
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Yellow w/ Black
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Red w/ Orange
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Black
⸻
CLUSTER BACKLIGHTING
Red w/ Blue (1 Dot) — Cluster Backlight Power / Active When Lights Are Turned On
S13 /S14 240SX

