Page 495 of 579
THA197M
TROUBLE DIAGNOSESAUTO
Wiring Diagram Ð A/C, A Ð/TB45 Engine
(Cont'd)
HA-4016
Page 497 of 579
Wiring Diagram Ð A/C, A Ð/TD Engine
THA199M
TROUBLE DIAGNOSESAUTO
HA-4018
Page 498 of 579
THA200M
TROUBLE DIAGNOSESAUTO
Wiring Diagram Ð A/C, A Ð/TD Engine (Cont'd)
HA-4019
Page 499 of 579
THA201M
TROUBLE DIAGNOSESAUTO
Wiring Diagram Ð A/C, A Ð/TD Engine (Cont'd)
HA-4020
Page 501 of 579
Wiring Diagram Ð A/C, A Ð/ZD Engine
THA203M
TROUBLE DIAGNOSESAUTO
HA-4022
Page 502 of 579
THA204M
TROUBLE DIAGNOSESAUTO
Wiring Diagram Ð A/C, A Ð/ZD Engine (Cont'd)
HA-4023
Page 503 of 579
THA205M
TROUBLE DIAGNOSESAUTO
Wiring Diagram Ð A/C, A Ð/ZD Engine (Cont'd)
HA-4024
Page 519 of 579
DIAGNOSTIC PROCEDURE (TB48 ENGINE EXCEPT
FOR THE MIDDLE EAST)
SYMPTOM: Magnet clutch does not engage when A/C switch
and fan control dial are ON.
CHECK INTAKE SENSOR CIRCUIT.
Refer to self-diagnosis (HA-4027) and
intake sensor circuit (HA-132 in Y61 SER-
VICE MANUAL, publication No. SM7E-
2Y61G1.)
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connector.
Do approx. 12 volts exist between compres-
sor harness connector terminal No.j
1and
ground?
No
cYe s
Check magnet clutch coil.
NG
Replace magnet clutch.
Refer to HA-178 in Y61
SERVICE MANUAL (publi-
cation No. SM7E-2Y61G1).
Disconnect A/C relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C RELAY HARNESS CON-
NECTOR TERMINAL NO.j
3AND COM-
PRESSOR HARNESS CONNECTOR TER-
MINAL NO.j
1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK POWER SUPPLY FOR A/C
RELAY.
Disconnect A/C relay.
Do approx. 12 volts exist between A/C
relay harness connector terminal Nos.j
1,
j5and ground?
Ye s
cNo
Check power supply circuit
and 10A or 20A (No.
)
located in the fuse block
(J/B).
Refer to EL section (ªWiring
Diagramº, ªPOWER SUP-
PLY ROUTINGº).
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-41 in Y61 SERVICE MANUAL,
publication No. SM1E-Y61EG1.
OK
cNG
Replace A/C relay.
jA(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA385I
SHA579F
SHA580FC
SHA581F
.
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-4040
