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Standard: Battery Voltage (12.8 V or more)Содержание книги
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Oxygen Sensor [F] If the reading is incorrect, check the following. Battery Main Fuse 30 A Oxygen Sensor Heater Fuse 10 A If the reading is good, the power source voltage is normal, Inspect the Red/Black lead between the oxygen sensor connector and the ECU for continuity, using the following diagram. If the wiring is good, inspect the ECU for its ground, and power supply (see ECU Power Supply Inspection). If the ground and power supply are good, replace the ECU (see ECU Removal/Installation).
Oxygen Sensor Circuit 1. ECU 2. Oxygen Sensor 3. Water-proof Joint E 4. Water-proof Joint D 5. Oxygen Sensor Heater Fuse 10 A 6. Main Fuse 30 A 7. Battery 8. Frame Ground 9. Joint Connector
Oxygen Sensor Removal/Installation • Refer to the Oxygen Sensor Removal/Installation in the Electrical System chapter. Oxygen Sensor Inspection • Warm up the engine thoroughly until the radiator fan starts. • Turn the ignition switch OFF. • Remove: Left Lower Fairing (see Lower Fairing Removal in the Frame chapter) Engine Sprocket Cover (see Engine Sprocket Removal in the Final Drive chapter) • Connect a digital voltmeter [A] to the oxygen sensor con- nector [B] (main harness side), using the needle adapter set [C]. Special Tool - Needle Adapter Set: 57001-1457 Oxygen Sensor Output Voltage Connections to Oxygen Sensor Connector Meter (+) → BL/Y lead Meter (−) → BR/BK lead • Remove the air switching valve hose from the fitting. • Install the suitable plugs [A] on the fitting [B] and shut off the secondary air.
• Turn the ignition switch ON. • Start the engine, and let it idle. • Measure the output voltage of the sensor with the con- nector joined. Oxygen Sensor Output Voltage (with Plugs) Standard: 0.7 V or more • Next, remove the plugs from the fitting [A] with idling.
• Measure the output voltage of the sensor with the con- nector joined. Oxygen Sensor Output Voltage (without Plugs) Standard: 0.2 V or less If the reading is within range (with plugs: 0.7 V or more, without plugs: 0.2 V or less), the oxygen sensor is good. If the reading is without range, inspect the engine and fuel supply system. If the engine and fuel supply system good, replace the oxygen sensor (see Oxygen Sensor Removal/Installation in the Electrical System chapter). 1. ECU 2. Oxygen Sensor 3. Water-proof Joint E 4. Water-proof Joint D 5. Oxygen Sensor Heater Fuse 10 A 6. Main Fuse 30 A 7. Battery 8. Frame Ground 9. Joint Connector
Inspection Flow Chart
FI Indicator Light (LED) Inspection • Remove the meter unit (see Meter Unit Removal in the Electrical System chapter). • Using two auxiliary leads, supply battery power to the FI indicator light (LED) [A]. 12 V Battery [B] FI Indicator Light (LED) Check Connector: Meter Connector [C] (disconnected) Connection: W/BK Lead Terminal [10] of the Meter → Battery (+) Terminal BR/R Lead Terminal [6] of the Meter → Battery (–) Terminal Criterion: The light (LED) should light. If the light (LED) does not go on, replace the meter unit (see Meter Unit Removal/Installation in the Electrical Sys- tem chapter). 1. ECU 2. Water-proof Joint C 3. Ignition Switch 4. Meter Unit 5. Ignition Fuse 10 A 6. Main Fuse 30 A 7. Battery 8. Frame Ground 9. Joint Connector
ECU Removal • Remove: Seat (see Seat Removal in the Frame chapter) Grab Rails [A] (see Seat Cover Removal in the Frame chapter) Center Seat Cover [B] (see Seat Cover Removal in the Frame chapter) Seat Covers [C] (see Seat Cover Removal in the Frame chapter) Rear Fender Rear Bolts [D] • Pull down the rear fender rear [A].
• Remove the ECU bracket bolts [A]. • Take the ECU [B] out along with the harness. • Disconnect the ECU lead connectors.
ECU Installation • Fit [A] the bracket on the ECU as shown.
ECU Power Supply Inspection • Visually inspect the terminals [A] of the ECU connectors. If the connector is clogged with mud or dust, blow it off with compressed air. Replace the main harness if the terminals of the main harness connectors are cracked, bent, or otherwise dam- aged. Replace the ECU if the terminals of the ECU connectors are cracked, bent, or otherwise damaged.
• With the ECU connectors [A] connected, check the fol- lowing ground lead for continuity with the ignition switch OFF, using a tester and needle adapter set. Battery [B] Tester [C]
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