S10/T10 Blazer 2WD V6-4.3L VIN X (2003)
Wiring Harness: Service and Repair
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid, TCC Solenoid, and Wiring Harness
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Tools Required
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J 28458 Seal Protector Retainer Installer
Removal Procedure
1. Raise and support the vehicle.
2. Remove the transmission oil pan and the filter.
3. Disconnect the transmission harness 20-way connector from the transmission internal harness pass-through connector. Depress both tabs on the
connector and pull straight up; do not pry the connector.
Important: Removal of the valve body is not necessary for the following procedure.
4. Remove the 1-2 accumulator assembly. Do not remove the spacer plate.
5. Disconnect the internal wiring harness electrical connectors from the following components:
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Transmission fluid pressure switch (1)
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1-2 shift control solenoid (2)
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2-3 shift control solenoid (3)
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Pressure control solenoid (4)
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TCC PWM solenoid (5)
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3-2 control solenoid (6)
