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10. Check continuity between ground and terminal No. 7 (Gray/Black wire) of right air
temperature actuator. If continuity exists, go to step 12 . If continuity does not exist, go to
step 15 .
11. Check for loose wires and or poor connections at right air temperature actuator. Repair any
problems found and go to step 15 . If wiring and connections are okay, go to step 13 .
12. Check for loose wires and poor connectors at HVAC control head. Repair any problems
found and go to step 15 . If wiring and connectors are okay, go to step 14 .
13. Replace right air temperature actuator. See AIR TEMPERATURE ACTUATORS under
REMOVAL & INSTALLATION and go to step 15 .
14. Replace HVAC control head. See HVAC CONTROL HEAD under REMOVAL &
INSTALLATION and go to next step.
15. Use scan tool to clear DTCs. See CLEARING TROUBLE CODES under SELF-
DIAGNOSTICS. Operate vehicle and verify that DTCs do not reset. If DTCs reset, go to
step 2 . If DTCs do not reset, system is okay.
SYSTEM TESTS
A/C SYSTEM PERFORMANCE
See MANUAL A/C-HEATER SYSTEMS - CORVETTE article.
A/C-HEATER SYSTEM FUNCTIONAL TEST
Perform A/C-heater system functional test with engine running and at normal operating
temperature. Start functional test from AUTO mode. Perform necessary steps of A/C-HEATER
SYSTEM FUNCTIONAL TEST CHART from top to bottom. See Fig. 2 .
NOTE:
AUTO mode display on HVAC control head and dual-zone passenger
control is overridden when driver-set temperature is either 60°F or
90°F.
2001 Chevrolet Corvette
2000-01 AUTOMATIC A/C-HEATER SYSTEMS Corvette
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