Toyota Celica Supra 1986 Service And Repair Manual page 724

AIR CONDITIONING SYSTEM - Tr0<1bleshooting
TROUBLESHOOTING (Cont'd)
Sy,_.om Poaibfe
~
... ,., Ctt.:kl and COftKttons p ...
No blower conuol Defective water ttmperatu" relay
Check for OOfn
AC·9
O.fectiveh.tat
mode switch CMck few
shOft
AC-9
Otltc-ci'we
water
cemperature
swiu:h
Chedt for sl10ft
AC·:ZO
Otfectl\lt H i·sl)e«t relay
Cheek for s.hOtl
AC·9
Oeftctlve wiring conneetion Check
anct rtp.~ ir
AC-9
Dt-fecdvt vawum circuit
CN<:k for luk and rept~ir
A C.16
Interior temperature Blown fuse or circuit breaker
Replace
AC.9
does not
tower
Otf«tivt tnagnttic
Ckltcft
Ohtdc and r•Piit
AC.23
Oefeedve comprtfl()r
Chtck and rll)lir
AC·23
Defective pressure switch
Replace
AC·9
Otf~tetlvt
expawulon valve At
place
AC~
Defective EPA
RtpiJCt
~
tnsufficM!n1 refrigerant in rvsum Check dischtrge refrigel'ttlon systen AC•11
De fective A/C switch
Check
for &hort
Of
open
AC·9
Otfectin ttmPtflture wruots Chtd<fo.shon Ac-19
(in-<;~~
WMCW.
ambient sensor,
Defective rheostat
Check for short
AC·9
O.fective power servo unit Check C)t)tra1ion AC.17
Oeftetiw
ovv
Check QPefttton
AC.20
Oeftetln amplifier
Chtck operftion
0ffac1ive COndenser motor Check opettdon
AC·21
Defective A/C
rtiiV
OWck opentian
,.e.g
Oefec:ttvt wiring connection Chect:: and rtPiir
AC-9
Oef ecti~e
vacuum cirwit Check for Ink and reptlr AC· 16
lnttriOf ttml)traturt O.ftctivt water wttvt Check ot)erltion
doH not r1M:
Oeftetive
te.rnper~ture
sen)C)n
Cheek
for QC)tn AC.19
Cii'H:ar sensor, ambient
~nsor)
Defective rheonat Check for open AC·9
Oefecd vt poo;wr
ttf¥0
unit Check Ol)lf'tdon AC.17
Oeftctlve OVV
Check oper~t lon
AC-20
Defec tive amptiflt r Check opeft t ion
Otftctlve wiring conneaion Check tnd rtC)Iir AC.9
Defective vacuum circuit
CMdt
for luk and rePilr
AC. 16
Unstable OPtration Defective vacuum circuit
Chtck for
lu k
tnd reQalr AC.16
(hvnting) Poor conntction of rheostat
Check and rtPtir AC·9
Otfectivt power S«vo unit Cheek operation AC· 17
Oeftctiwe OVV Chtck operation
AC·:ZO
Defec-tive amplifier Ctltck
oper~tion
Poor connection "" wire
Chtek and rfl)rlir
,.e.g
Improper shifting M is~iusted control lever
Of
rod Cl\eoek ar'M:f •tPJir
of dam
pet~
OiSCOMeCted eotlttol wtrt Check and ttpair
AC.Q
Defective dampen
ChiCk and rtpeir
AC.19