Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1992S10/T10 P/U 4WD V6-173 2.8LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSFER CASECONTROL MODULEDESCRIPTION AND OPERATIONTCCM INPUTS AND OUTPUTSTCCM OUTPUTS
1992 Chevrolet S10/T10 P/U 4WD V6-173 2.8L
TCCM Outputs
1992 Chevrolet S10/T10 P/U 4WD V6-173 2.8LSECTION TCCM Outputs
Selector Switch Status Lamp Schematic:
OPERATION
The Transfer Case Control Module (TCCM) controls the operation of the 4HI and 4LO status lamps in the transfer case selector switch. The status lamps also show the transfer case mode and range of operation.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.