The following diagram and pinout reference should help you work out what does what. Handy if your making a field harness or installing a programmable ECU. I’ve numbered and colour coded the pins in figure 1 for easy matching against the pinout table below.
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Figure 1:
Pinout Table
| Pin | Wire | Description |
|---|---|---|
| 101 | W/B | Fuel Injector # 1 Drive Input |
| 102 | L/R | EGR & Canister Control Solenoid Valve |
| 103 | G/B | Fuel Injector # 3 Drive Input |
| 104 | ||
| 105 | R/Y | Unknown |
| 106 | ||
| 107 | B | Engine Ground |
| 108 | B | Engine Ground |
| 109 | R | ECU Power |
| 110 | Y/B | Fuel Injector # 2 Drive Input |
| 111 | ||
| 112 | L/B | Fuel Injector # 4 Drive Input |
| 113 | Y | VTC Solenoid Valve |
| 114 | ||
| 115 | B | Heated Oxygen Sensor Heater |
| 116 | B | Engine Ground |
| 1 | R/W | Power Transistor Coil Pack # 1 |
| 2 | R/Y | Power Transistor Coil Pack # 2 |
| 3 | ||
| 4 | SB | IACV-AAC Valve |
| 5 | ||
| 6 | ||
| 7 | L/B | Tachometer Signal Output |
| 8 | ||
| 9 | G/Y | A/C Relay (Triple Pressure Switch) |
| 10 | B | Engine Ground |
| 11 | R/G | Power Transistor Coil Pack # 3 |
| 12 | R/L | Power Transistor Coil Pack # 4 |
| 13 | ||
| 14 | ||
| 15 | ||
| 16 | R/B | ECU Relay (Self Shut-Off) |
| 17 | ||
| 18 | B/Y | Fuel Pump Relay |
| 19 | O/L | Cooling Fan Relay (Low) |
| 20 | B | Engine Ground |
| 21 | G/B | SCI RX (In) |
| 22 | G | SCI TX (Out) |
| 23 | W | Knock Sensor |
| 24 | ||
| 25 | O/B | Wastegate Valve Control Solenoid Valve |
| 26 | B | Mass Air Flow Sensor Ground |
| 27 | W | Mass Air Flow Sensor |
| 28 | L/O | Engine Coolant Temperature Sensor Input |
| 29 | W | Heated Oxygen Sensor |
| 30 | B | Engine Ground |
| 31 | G/W | SCI CLK |
| 32 | O | Malfunction Indicator Lamp |
| 33 | O/B | Cooling Fan Relay (High) |
| 34 | PU/W | Power Steering Oil Pressure Switch |
| 35 | W | Boost Pressure Sensor |
| 36 | B | Ground |
| 37 | ||
| 38 | W | Throttle Position Sensor |
| 39 | ||
| 40 | ||
| 41 | W | Camshaft Position Sensor (Reference Signal) |
| 42 | B | Camshaft Position Sensor (Position Signal) |
| 43 | O/L | Start Signal |
| 44 | G/O | Neutral Position Switch |
| 45 | B/R | Ignition Switch |
| 46 | R | Thermistor Control Amplifier |
| 47 | G/R | Check Connector |
| 48 | LG/R | Throttle Position Sensor Power Output (AVCC boost) |
| 49 | B/W | ECU Power |
| 50 | B | ECU Ground |
| 51 | W | Camshaft Position Sensor (Reference Signal) |
| 52 | B | Camshaft Position Sensor (Position Signal) |
| 53 | Y/G | Vehicle Speed Sensor |
| 54 | L/R | Load Signal |
| 55 | ||
| 56 | ||
| 57 | B/W | Unknown |
| 58 | R | Power Supply (Back-Up) |
| 59 | B/W | ECU Power |
| 60 | B | ECU Ground |
Links
Acknowledgements
The source for this information came from a spreadsheet I came across a while ago, I have checked the information here to the best of my ability against various sources on the internet. As a result I cannot guarantee that the information above is indisputable. The author of the original spreadsheet is unknown.
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