Fuller Advantage
TRSM0980 EN-US
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October 2022 - B

Transmission Harness

Special Instructions

None

Special Tools

  • Basic hand tools

Component Identification

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1. 38-way Transmission Electronic Control Unit (TECU) Connector 2. Gear Sensor Connector 3. Rail Sensor Connector 4. 4-way Diagnostic Connector 5. Input Shaft Speed Sensor Connector 6. 8-way Electronic Clutch Actuator (ECA) Connector 7. Range Solenoid Connector 8. Output Shaft Speed Sensor Connector 9. Engine Speed Sensor Connector 10. Main Shaft Speed Sensor 11. X-Y Shifter Connector 12. Terminating Resistor Connector

Transmission Harness Removal

Caution
The battery negative must be disconnected prior to disconnecting the 38-way Transmission Electronic Control Unit (TECU) Connector and 38-way Vehicle Harness Connector from the TECU.
Caution
Do not allow contamination into the TECU or connectors.

  1. Disconnect the following connectors:

    • Using a 5/32" hex wrench, unscrew and disconnect the Transmission Harness 38-way Connector and Vehicle Interface 38-way Connector.
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  2. Disconnect the following harness connectors:

    • Input Shaft Speed Sensor
    • Main Shaft Speed Sensor
    • Gear Select Sensor and Rail Select Sensor
    • Output Shaft Speed Sensor
    • Range Valve Solenoids
    • ECA Speed Sensor
    • 8-way ECA Connector
    • X-Y Shifter

Transmission Harness Installation

Caution
Do not allow contamination into the TECU connectors.
Caution
Do not over tighten cable ties.
Caution
You need to leave a service loop in the Transmission Harness.
Caution
Do not put sharp bends in the Transmission Harness.
Caution
The battery negative must be disconnected, while installing the 38-way Transmission Electronic Control Unit (TECU) Connector and 38-way Vehicle Harness Connector from the TECU..

  1. Reconnect the following harness connectors:

    • Gear Select and Rail Select Sensor
    • Main Shaft Speed Sensor
    • Input Shaft Speed Sensor
    • Output Shaft Speed Sensor
    • ECA Speed Sensor
    • 8-way ECA Connector
    • X-Y Shifter
    • Range Valve Solenoids

  2. Using a 5/32" hex wrench, reconnect the Transmission Harness 38-way Connector and tighten to 25 +/- 3 lb-in (2.82 +/- 0.33 N•m).

    Caution
    Do not exceed the torque on the Transmission Harness or Vehicle Harness Connector or bolt failure will occur.
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