LS2 V6-3.0L VIN R (2000)
2.
Use screwdriver to release retaining tab on cooling fan control module and remove module by sliding up and off bracket.
3.
Disconnect cooling fan control module electrical connectors.
4.
Obtain replacement cooling fan control module.
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P/N 12182148 for L81
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P/N 12182149 for L61
5.
Connect cooling fan control module electrical connectors.
6.
Install fan control module by sliding down onto bracket.
7.
Connect negative battery cable.
Torque: 17 Nm (13 ft-lbs)
8.
Check 30A COOLING FAN # 2 fuse located in UHFB to ensure it is not OPEN.
9.
Connect Tech 2 to vehicle and turn ignition to RUN position.
10.
Use Tech 2 to perform "3 Speed Fan" operational test. (Refer to Tech 2 User Guide for proper Scan tool navigation and setup.)
11.
Confirm that both cooling fans operate at LOW, MED, and HIGH speeds while performing test.
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If both cooling fans operate at all three speeds during the test, vehicle is repaired and no further diagnosis is necessary.
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If both cooling fans DO NOT operate at all three speeds during the test, refer to the Cooling System section of the appropriate 2000 L-Series
LS1 or L61 Engine Service Manual for further diagnostics.
