Operation CHARM
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Isuzu Truck
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1998
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Amigo 2WD L4-2.2L
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Speedometer Head
Speedometer Head
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Testing and Inspection
Speedometer and Odometer Do Not Function
Speedometer Does Not Function (Odometer Is Normal)
Odometer Does Not Function (Speedometer Is Normal)
Speedometer Needle Fluctuates (May Be Wide Fluctuation)
Speedometer Needle Jumps Erratically
Inspection of Waveform By Oscilloscope
Diagrams
Diagram Information and Instructions
Circuit Identification for In-Line and Fuse Box Connectors
Cavity Numbering System
Circuit Schematics
Component Locations
Ground Distribution Schematics
Power Distribution Schematics
Symbols
Components
Connectors - "C"
Diodes
Fuses
Ground - "G"
Shielding
Splices
Switches
Terminals - "T"
Wire Color Abbreviations
Wires
Connector
Parts For Electrical Circuit
Reading the Circuit Diagram
Schematic Symbols
Abbreviations
Diagnostic Aids
Notes For Working on Electrical Items
Troubleshooting Precautions
Troubleshooting Test
Testing for A Short With Self-Powered Test Light or DVOM
Testing for A Short With a Short Circuit Locator (Short Finder)
Testing For a Short With a Test Light or DVOM
Testing For Continuity
Testing For Voltage
Testing For Voltage Drop
Electrical Diagrams
Testing and Inspection
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