Operation CHARM
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Mazda Truck
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1991
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Navajo 2WD V6-4.0L OHV
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Fuel Gauge
Fuel Gauge
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Testing and Inspection
Troubleshooting
Test A - Check Fuel Gauge Operation
A1 - Verify Complaint
A2 - Verify Cluster Performance
Test B - Check Voltage to Fuse Panel
B1 - Verify Power at Fuse Panel
B2 - Verify Power at Fuse Panel
Test C - Check Power Circuit to Cluster
C1 - Verify Power at Cluster
C2 - Verify Ground Circuitry at Cluster
Test D - Check Fuel With Gauge System Tester
D1 - Check Fuel Gauge (Empty)
D2 - RE-Check Fuel Gauge (Empty)
D3 - Check Printed Circuit Board
D4 - Check Anti-Slosh Module (Empty)
D5 - Check Fuel Gauge Sending Unit Wire
D6 - Check Fuel Sending Unit Ground
D7 - Check Fuel Gauge (Full)
D8 - Check Anti-Slosh Module (Full)
D9 - Fuel Sending Unit Diagnosis
Test E - Fuel Gauge
E1 - Tank Inspection
E2 - Test Box Check-Empty Stop
E3 - Test Box Check-Full Stop
E4 - Test Box Check-Float Rod Travel
E5 - Harness Connector Check-Empty Stop
E6 - Harness Connector Check-Full Stop
E7 - Inspect Fuel Sender
E8 - Pigtail Harness Check
Locations
Component Locations
Connector Locations
Diagrams
Diagram Information and Instructions
Abbreviations
Connector Diagram
Ground Points
Routing Diagram
Symbol Idenification
System Circuit Diagram
Wiring Color Code Information
Connector Views
Electrical Diagrams
