OMRG25204 oem uncert & tier 1.pdf - John Deere Industrial Engines

TroubleshootingEngine Wiring Diagram Legend (Standard Instrument Panel For North America)A1 — Speed Control UnitB1 — Magnetic Speed SensorB2 — Coolant Temperature SensorB3 — Oil Pressure SensorF1 — Starting Circuit Fuse (14 amp)F3 — Fuse (Early Models) 1G1 — BatteryG2 — AlternatorH1 — Coolant Temperature Indicator LampH2 — Oil Pressure Indicator LampH3 — Alternator Indicator LampK1 — Starter RelayM1 — Starter MotorP1 — Coolant Temperature GaugeP2 — Oil Pressure GaugeP3 — Crankcase Oil Level Switch/GaugeP4 — Tachometer 1P5 — Hourmeter (Early Models) 2P6 — AmmeterR1 — Resistor (48 ohm) 3S1 — Key SwitchS2 — Magnetic Safety Switch—North AmericanAuto Override Module—European (Saran)W1 — Ground on K1 Starter Relay Mounting StudY1 — Starter SolenoidY2 — Fuel Shut-off SolenoidBLK — BlackBLU — BlueBRN — BrownDK BLU — Dark BlueGRN — GreenORG — OrangePUR — PurpleRED — RedYEL — Yellow1P4 tachometer has a built-in hourmeter. On some earlier engines,a separate hourmeter (P5) and fuse (F3) were used.2P4 tachometer has a built-in hourmeter. On some engines, aseparate hourmeter (P5) and fuse (F3) are used.3Later harnesses have two parallel 100 ohm resistors for thealternator.DPSG,RG41165,126–19–19JUN00–1/150-3 110306PN=122