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