Operation CHARM
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Toyota Truck
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1994
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4 Runner 2WD L4-144.4 2366cc 2.4L SOHC (22R-E)
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Repair and Diagnosis
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Powertrain Management
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Sensors and Switches - Powertrain Management
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Sensors and Switches - Computers and Control Systems
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Oxygen Sensor
Oxygen Sensor
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Description and Operation
Testing and Inspection
Main Heated Oxygen Sensor
Sub Oxygen Sensor
Locations
Service and Repair
Heated Oxygen Sensor
Sub Heated Oxygen Sensor (California Only)
Diagrams
Diagram Information and Instructions
Abbreviation Identification
Symbol Identification
Wire Color Code Identification
Diagnostic Aids
Continuity and Resistance Check
Damage Precautions
Electrical Precautions
Electronic Component Handling
Electronic Component Replacement
Battery Precautions
Electrical Connections and Circuits
Electrostatic Discharge
Proper Tools and Testing Procedures
Finding Short Circuits
Voltage Check
Wire Repair Procedures
Circuit Protection Devices
Typical Electrical Repair
Splicing Copper Wire Using Splice Clips
Splicing Copper Wire Using Crimp and Seal Splice Sleeves
Splicing Twisted/Shielded Cable
Repairing Connectors
Terminal Repair
Electrical Diagrams
Specifications
Electrical Specifications
Mechanical Specifications
Technical Service Bulletins
