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indicates LH MIX MTR POSITION FEEDBACK parameter is not between 5-250 counts,
go to next step.
3. Turn ignition off. Disconnect left air temperature actuator. Turn ignition on. Observe LH
MIX MTR POSITION FEEDBACK parameter in HVAC data list. If scan tool indicates
LH MIX MTR POSITION FEEDBACK parameter is more than 250 counts, go to next
step. If scan tool indicates LH MIX MTR POSITION FEEDBACK parameter is 250 counts
or less, go to step 8 .
4. Turn ignition off. Connect a fused jumper wire between terminals No. 9 (Dark Blue wire)
and No. 7 (Gray/Black wire) of left air temperature actuator. Turn ignition on. Observe LH
MIX MTR POSITION FEEDBACK parameter in HVAC data list. If scan tool indicates
LH MIX MTR POSITION FEEDBACK parameter is less than 5 counts, go to next step. If
scan tool indicates LH MIX MTR POSITION FEEDBACK parameter is 5 counts or more,
go to step 9 .
5. Turn ignition off. Connect a fused jumper wire between terminals No. 9 (Dark Blue wire)
and No. 10 (Yellow wire) of left air temperature actuator. Turn ignition on. Observe LH
MIX MTR POSITION FEEDBACK parameter in HVAC data list. If scan tool indicates
LH MIX MTR POSITION FEEDBACK parameter is more than 250 counts, go to step 7 .
If scan tool indicates LH MIX MTR POSITION FEEDBACK parameter is 250 counts or
less, go to next step.
6. Check continuity between ground and terminal No. 10 (Yellow wire) of right air
temperature actuator. If continuity exists, repair short to ground in Yellow wire between
terminal C3 of HVAC control head and right air temperature actuator. After repair, go to
step 15 . If continuity does not exist, go to step 12 .
7. Turn ignition off. Measure voltage between ground and terminal No. 10 (Yellow wire) of
left air temperature actuator. If voltage exists, repair short to voltage in Yellow wire
between left temperature sensor and terminal C10 of HVAC control head. After repair, go
to step 15 . If voltage does not exist, go to step 11 .
8. Check continuity between ground and terminal No. 9 (Light Blue wire) of left air
temperature actuator. If continuity exists, repair short to ground in Light Blue wire between
right air temperature actuator and terminal C8 of HVAC control head and go to step 15 . If
continuity does not exist, go to step 12 .
9. Check voltage between ground and terminal No. 9 (Light Blue wire) of left air temperature
actuator. If voltage exists, repair short to voltage in Light Blue wire between terminal C8 of
HVAC control head and left air temperature actuator. After repair, go to step 15 . If
continuity does not exist, go to next step. If continuity does not exist, check continuity in
Light Blue wire between terminal No. 9 of left air temperature actuator and terminal C8 of
HVAC control head. If continuity exists, go to next step. If continuity does not exist, repair
open or high resistance in Light Blue wire and go to step 15 .
2001 Chevrolet Corvette
2000-01 AUTOMATIC A/C-HEATER SYSTEMS Corvette
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