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 MANUALSCHEVROLET2001ASTRO VAN L AWD V6-4.3L VIN WREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTRANSMISSION CONTROL SYSTEMSRELAYS AND MODULES - TRANSMISSION AND DRIVETRAINRELAYS AND MODULES - TRANSFER CASECONTROL MODULESERVICE AND REPAIR
2001 Chevrolet Astro Van L AWD V6-4.3L VIN W
Control Module: Service and Repair
2001 Chevrolet Astro Van L AWD V6-4.3L VIN WSECTION Service and Repair
Transfer Case Shift Control Module Replacement
Removal Procedure

1. Remove the parking brake assembly.

2. Remove the lower dash panel.

3. Remove the electrical connectors from the control module.
4. Remove the mounting screws for the control module.
5. Remove the control module from the mounting bracket.
Installation Procedure

1. Install the control module in the mounting bracket.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the mounting screws for the control module.
Tighten the mounting screws to 6 Nm (53 inch lbs.).
3. Install the electrical connectors in the control module.

4. Install the lower dash panel.

5. Install the parking brake assembly.
Removal Procedure
1. Remove the parking brake assembly.
2. Remove the lower dash panel.
3. Remove the electrical connectors from the control module.
4. Remove the mounting screws for the control module.
5. Remove the control module from the mounting bracket.
Installation Procedure
1. Install the control module in the mounting bracket.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the mounting screws for the control module.
Tighten the mounting screws to 6 Nm (53 inch lbs.).
3. Install the electrical connectors in the control module.
4. Install the lower dash panel.
5. Install the parking brake assembly.
RENDER: 1.0x
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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.