Toyota RM787U, Service And Repair Manual, Page: 352 / 1976

I21006
To ”COOL”
To ”WARM”
5
4
5
4
(+) (-)
(+) (-)
DI-738
- DIAGNOSTICS AIR CONDITIONING SYSTEM
892
Author: Date:
2001 SIENNA (RM787U)
2 Check front air mix damper control servomotor.
PREPARATION:
Remove front air mix damper control servomotor (See page
AC-90 ).
CHECK:
Connect positive (+) lead to terminal 4 and negative (-) lead to
terminal 5.
CHECK:
Connect positive (+) lead to terminal 5 and negative (-) lead to
terminal 4.
OK:
The lever turns smoothly to ”COOL” side.
OK:
The lever turns smoothly to ”WARM” side.
NG Replace front air mix damper control servomo-
tor assembly.
OK
3 Check harness and connector between A/C cotrol assembly and front air mix
damper control servomotor assembly (See page
IN-31 ).
NG Repair or replace harness or connector.
OK
Check and replace A/C cotrol assembly.