Pin Voltage Chart
ECM TERMINAL IDENTIFICATION & WIRE COLORS
| Wire Color | Terminal Number | Function/ Description | Voltage Value (DC Volts) (Unless Otherwise Specified) |
|---|---|---|---|
| Green | 1 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Yellow | 2 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Grn/Wht | 3 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Green | 4 | Cooling Fan (High Speed) | KOER - Fan Off - 11-14V |
| " | " | " | KOER - Fan On - 0V |
| Brown/ Yellow | 5 | Cooling Fan (Low Speed) | KOER - Fan Off - 11-14V |
| " | " | " | KOER - Fan On - 0V |
| Green/ Orange | 6 | Fuel Pump Control | Turn Ignition On - 1.9V For First 5 Seconds, 0V After First 5 Seconds KOER - 1.9-2.0V At Idle |
| Blk/Grn | 7 | Tachometer | KOER, About 1.5V At Idle |
| " | " | " | KOER, About 3.1V At 2000 RPM |
| Green/ Yellow | 8 | Canister Control Solenoid Valve | KOER, About .8V At Idle |
| " | " | " | KOER, 11-14 At 2000 RPM |
| Lt. Green/ White | 9 | A/C Relay | KOER - A/C On - 0.0V |
| " | " | " | KOER, A/C Off - 11.0- 14.0V |
| Yel/Wht | 11 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Grn/Blk | 12 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Yel/Blk | 13 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Green/Red | 14 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Yel/Red | 15 | Ignition Signal | KOER - 70mV At Idle |
| " | " | " | KOER - 0.14 At 2000 RPM |
| Gray/Red | 16 | ECCS Relay Self-Shut Off | Turn Ignition Off - 0-1.0V For First 2 Seconds, 11.0- 14.0V After First 2 Seconds |
| Pink/ Black | 18 | Fuel Pump Relay | Turn Ignition On - 1.9V For 5 Seconds, 11.0-14.0V After First 5 Seconds |
| " | " | " | KOER - .9v At Idle |
| Pink/ Blue | 19 | Fuel Pump Control | Turn Ignition On - 1.9V For 5 Seconds, 0V After First 5 Seconds |
| " | " | " | KOER - 1.9-2.0V At Idle |
| White | 23 | Knock Sensor | KOER - 2.5V At Idle |
| White | 24 | Knock Sensor | KOER - 2.5V At Idle |
| White | 27 | MAF Sensor | KOER, 1.0-1.4V At Idle |
| " | " | " | KOER - 1.4-1.9V At 2000 RPM |
| Green/ Yellow | 25 | Power Steering Pressure Switch | KOER - Wheels Turned - 0V |
| " | " | " | KOER, Wheels Straight - About 5V |
| Yellow/ Black | 28 | Coolant Temp. Sensor | KOER, 0-5.0V, Varies With Temperature |
| White | 29 | Right Side Oxygen Sensor Sig. | KOER, 0.2-1.0V |
| Red/Green | 36 | TCS Signal | KOEO, Manually Close Throttle - 0.0V |
| Purple/ White | 37 | Secondary Throttle Position Sensor | KOEO, Manually Close Throttle - 0.4V |
| White | 38 | Throttle Position Sensor | KOER - 0.4-4.0V, Varies With Throttle Angle |
| Orange/ Black | 39 | EGR Temperature Sensor | KOER - Less Than 4.5V At Idle |
| " | " | " | KOER - 0.0-1.0V W/ EGR Open |
| Orange/ Black | 40 | Power Steering Oil Pressure Sw. | KOER, Wheels Straight About 0V |
| " | " | " | KOER, Wheels Turned 11.0-14.0V |
| Green/Black | 41 | CKP Reference Signal | KOER - 0.8-1.0V |
| Green/ Yellow | 42 | CKP Position Signal | KOER - 2.4-2.7V |
| Green/ Black | 43 | Start Signal | KOEC - 11.0-14.0V |
| Blue/ Yellow | 44 | Transmission Neutral Signal | KOEO, 0V In Neutral Or Park |
| " | " | " | KOEO - 8.0-10.0V Except Neutral (Or Park) |
| Blk/Wht | 45 | Ignition Switch | Ignition Switch Off - 7-10V |
| " | " | " | Ignition Sw. On - .5-.7V |
| Red/Black | 46 | A/C Switch | KOER, A/C Sw. On .5-.7V |
| " | " | " | KOER, A/C Switch Off - 7.0-10.0V |
| White | 46 | Power Supply (Backup) | Ign. Switch Off - 11-14V |
| Red/White | 48 | Sensor Reference Voltage | KOEO - 5.0V |
| Black/ White | 49 | ECM Power Supply | KOEO - 11.0-14.0V |
| Green/Black | 51 | CKP Reference Signal | KOER - 0.8-1.0V |
| White | 52 | Sub-CKP Signal | KOER - About 10mV |
| Green | 54 | Closed Throttle Position Switch | KOER - Throttle Closed - 11.0-14.0V |
| " | " | " | KOER - Throttle Open - 0.0V |
| White | 55 | Left Side Oxygen Sensor Signal | KOER - .2-1.0V |
| Red/Yellow | 56 | Throttle Position Signal | KOEO - .3-3.3V, Varies W/ Throttle Opening |
| Yellow/ Black | 58 | Battery Voltage | Ignition Switch Off - 11.0-14.0V |
| Black/ White | 59 | Power Supply | KOER - 11.0-14.0V |
| Yellow | 101 | Injector No. 1 | KOER - 11.0-14.0V |
| Gray | 102 | EGRC-Solenoid Valve | KOER, About 0V At Idle |
| " | " | " | KOER - 11.0-14.0V At 2000 RPM |
| Blue/Black | 103 | Injector No. 7 | KOER - 11.0-14.0V |
| Orange/ Black | 104 | Valve Timing Cntrl Solenoid (VTCS) | KOER, 11.0-14.0V At Idle |
| " | " | " | KOER, 0.0V At Snap Throttle RPM |
| Gray | 105 | Injector No. 6 | KOER - 11.0-14.0V |
| Gray | 106 | Injector No. 6 | KOER - 11.0-14.0V |
| Gray | 110 | Injector No. 8 | KOER - 11.0-14.0V |
| Brown/ White | 111 | IACV-AAC | Increased Idle Speed Demand - 6.0-9.0V |
| Red/Black | 112 | Injector No. 3 | KOER - 11.0-14.0V |
| Black/ Green | 113 | Injector No. 4 | KOER - 11.0-14.0V |
| Red/ Yellow | 114 | Injector No. 5 | KOER - 11.0-14.0V |
| Red/Black | 115 | Oxygen Sensor Heater - KOEC - Key On Engine Cranking. | KOER, Less Than 2250 RPM - 0.0V |
| " | " - KOEO - Key On Engine Off. | " | KOER, Greater Than 2250 RPM - 11.0-14.0V |
| - KOER - Key On Engine Running. | |||