Yukon XL 2500 2WD V8-8.1L VIN G (2004)
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19. Connect the internal wiring harness electrical connectors to the following components:
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The transmission fluid pressure manual valve position switch (1)
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The 1-2 shift solenoid (2)
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The 2-3 shift solenoid (3)
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The pressure control solenoid (4)
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The TCC PWM solenoid (5)
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The 3-2 shift solenoid (6)
20. Install the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement.