MANUAL TRANSMISSION ELECTRICAL

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MANUAL TRANSMISSIONELECTRICAL
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OBJECTIVES

• Diagnose electrical problems by logic and symptom
  description.
• Perform troubleshooting procedures using meters,
  test lights, and jumper wires.
• Repair electrical wiring.
• Replace electrical connectors.

Page 369 Lab
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OBJECTIVES

• Locate, test,adjust, and replace electrical
  switches on a transmission.
• Locate, test, and replace transmission related
  solenoids.
• Test, and replace electromagnetic clutches.
• Diagnose transmission -related electronic control
  circuits.

Page 369 Lab
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BASIC ELECTRICAL TERMS

• CIRCUIT
• VOLTAGE (Use Voltmeter)
• CURRENT (Use Ammeter)
• RESISTANCE (Use Ohmmeter)
• LOAD
• POWER SOURCE

Shop Manual - Page 369
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OHM GUYS
Ohms Law It takes 1 volt to push 1 amp through
1 ohm of resistance.
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TYPES OF CIRCUITS

• SERIES
• PARALLEL
• SERIES PARALLEL

Shop Manual - Page 255
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SIMPLE CIRCUIT

• Power source
• Conductors
• Load
• May include
• Circuit protection
• Circuit control

Class Manual - Page 209
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TYPES OF CIRCUIT FAILURES

• Opens Circuits
• Shorted Circuits
• Grounded Circuits
• Poor Connection (common to transmission problems)

Shop Manual - Page 372
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ELECTRICAL CONNECTIONS

• Many different electrical connections
• Must be clean and dry
• Must be secure and tight
• Oil and water will deteriorate connections
• Wiring condition must be in good shape

Shop Manual - Page 372
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PROTECTION DEVICES

• Fuses
• Cartridge
• Blade
• Ceramic
• Fusible Links
• Maxi-Fuses
• Circuit Breakers

Shop Manual - Page 383
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ELECTRICAL CONTROLS

• Switches
• Controlled by Driver of Car
• Mechanical Linkages
• Predetermined Condition (Programmed)
• Hydraulically Controlled High or Low Pressure
• Normally Open / Normally Closed
• Insulated side of circuit
• Ground side of circuit

Shop Manual - Page 385
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PRESSURE SWITCHES

• Normally Open Single Contact Switch
• Normally Open Dual Contact Switch
• Apply Air to Test
• Ohmmeter

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NEUTRAL SAFETY SWITCH

• Clutch Start Switch
• Electrical Operation and Circuit
• Prevents Starter from engaging in gear
• Backup Light Switch
• Testing and Adjusting
• Can use Voltmeter or Ohmmeter

Shop Manual - Page 385
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SPEED SENSORS

• Magnetic Pulse Generators
• Hall-effect switch
• Light Emitting Diode

Shop Manual - Page 389
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ELECTRICAL INPUTS

• Sensors
• Vary Electricity through circuit
• Potentiometers (variable resistors

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ELECTRICAL OUTPUTS

• Solenoids
• Change electrical energy into Mechanical energy
• Control Shifting
• Control Hydraulic Pressure

Shop Manual - Page 270
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ELECTRICAL OUTPUTS

• RELAYS
• Normally Open Relay
• Normally Closed Relay
• Single Contact
• Double Contact

Shop Manual - Page 257
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ELECTRONIC DEFAULTS

• Faulty sensor signal will cause transmission to
  go into default mode
• It will protect itself from destruction
• Testing for Electronic faults
• Scanners
• Jumper Wires
• Transmission Testers

Shop Manual - Page 54 and 283
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ADAPTIVE STRATEGY(Computer Relearn)

• Relearn after Repair (bat disconnected)
• Driveability Concerns
• Relearn Procedures

Shop Manual - Page 68-69
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CIRCUIT BOARD

• Install a WHITE wire between 55 60.
• Install a RED wire between 57 167.
• Install a WHITE wire between 168 169.
• Install a GREEN wire between 170 58.

RK
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AVAILABLE VOLTAGE

• Place black lead of voltmeter on terminal 58 and
  red lead on terminal 57.
• Black 58 - Red 167 Switch off
• Black 58 - Red 168 Switch off
• Black 58 - Red 169 Switch off
• Black 58 - Red 170 Switch off
• Record Readings

RK
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AVAILABLE VOLTAGE

• Place black lead of voltmeter on terminal 58 and
  red lead on terminal 57.
• Black 58 - Red 167 Switch on
• Black 58 - Red 168 Switch on
• Black 58 - Red 169 Switch on
• Black 58 - Red 170 Switch on
• Record Readings

RK
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See Ya Later Dudes!!