Page 417 of 558
– Compressor and Tension Pulley HEATER AND MANUAL
AIR CONDITIONER55-27
BSNAP RING INSTALLATION
Install the snap ring using a pair of snap ring pliers so that
the tapered surface is at the outer side.
CARMATURE INSTALLATION
Align the serration projection of the crankshaft with the notch
in the armature, and then fit them together.
DSELF-LOCKING NUT INSTALLATION
Use the special tool to hold the magnet clutch, and tighten
the self-locking nut in the same manner as removal.
EAIR GAP ADJUSTMENT
Check whether or not the air gap of the clutch is within the
standard value. If there is a deviation of the air gap from
the standard value, make the necessary adjustment by
adjusting the number of shims.
Standard value: 0.4 – 0.6 mmSnap ringRotorField core
Tapered part
Armature Notch
Crankshaft
Serration
projection
Thickness gauge
Page 432 of 558

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-42
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection procedure 1
Communication with the MUT-II is not possible.Probable cause
If communication with all other systems is not possible, there is a high
possibility that there is a malfunction of the diagnosis line. If communication
with only the A/C is not possible, the cause is probably a malfunction of the
diagnosis line or of the A/C-ECU power supply system (earth).Malfunction of connector or harness
Malfunction of A/C-ECU
Is communication between MUT-II and
other system possible?NOCheck the MUT-II diagnosis line, and
repair if necessary.
YES
Measure at the diagnosis connector
B-22.
Voltage between terminal (11)
and body earth
OK:Indication fluctuates be-
tween 0 V and 12 V.OKMeasure at the A/C-ECU connector
B-04.
Disconnect the connector, and
measure at the harness side
connector.
Voltage between terminal (18)
and body earth
OK:System voltage – 2 VNGCheck the following connector:
B-04
OK
Check the trouble symptom.
NG
Repair
NG
Measure at the A/C-ECU connector
B-04.
Connect the connector.
Voltage between terminal (17)
and body earth
OK:Indication fluctuates be-
tween 0 V and 12 V.NGOKCheck the following connector:
B-04
NG
Check the harness between the diagno-
sis connector and the A/C-ECU, and
repair if necessary.
NG
Repair
OK
Check the harness between the diagno-
sis connector and the A/C-ECU.NG
RepairOK
Check the trouble symptom.
OK
Check the following connectors:
B-04, B-22NG
Repair
OK
Check the trouble symptom.
NG
Measure at the A/C-ECU connector
B-05.
Disconnect the connector, and
measure at the harness side
connector.
Voltage between terminal (28)
and body earth
OK:System voltageNGCheck the following connectors:
B-49, B-75NG
Repair
OK
Check the trouble symptom.NGCheck the harness between the junc-
tion block and the A/C-ECU, and repair
if necessary.
OK
Measure at the A/C-ECU connector
B-05.
Disconnect the connector, and
measure at the harness side
connector.
Continuity between terminals
(29), (35) and body earth
OK:ContinuityNGCheck the following connectors:
B-05, B-48, B-19, B-67, B-80NG
Repair
OK
Check the trouble symptom.NGCheck the harness between the
A/C-ECU and the body earth, and repair
if necessary.
OK
Replace the A/C-ECU.
NG
Replace the A/C-ECU.
Page 436 of 558

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-46
Inspection procedure 8
Blower does not operate in HI mode.
Probable cause
If the blower does not operate in HI mode when the temperature is set to 17 or
32, the cause is probably a malfunction of the blower motor HI relay circuit system.Malfunction of blower motor HI relay
Malfunction of blower motor
Malfunction of connector or harness
Malfunction of A/C-ECU
NG
Repair OK
Check the trouble symptom.
NG
Check the harness between the blower motor HI relay and the
A/C-ECU, and repair if necessary.
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the blower motor HI relay and the
blower motor, and repair if necessary.
OK
Measure at the blower motor HI relay connector B-34.
Disconnect the connector, and measure at the harness
side connector.
(1) Connect terminal (1) to earth.
OK:Blower operates.
(2) Continuity between terminal (3) and body earth
OK:Continuity
(3) Voltage between terminal (4) and body earth (Ignition
switch: ON)
OK:System voltage(1) NGCheck the following connector:
B-34
Blower motor HI relay check (Refer to P.55-57.)
Blower motor check (Refer to P.55-21.)NG
Repair
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the blower motor HI relay and the
body earth, and repair if necessary.
(2) NG
Check the following connector:
B-34
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the blower motor HI relay and the
junction block, and repair if necessary.
(3) NG
Check the following connector:
B-34
NG
Repair OK
Check the trouble symptom.
YES
Check the following connector:
B-04
OK
Separate A/C-ECU connector B-04 and connect the terminal (12)
of the harness side connector to the earth. Does the blower
operate?NOCheck the following connector:
B-34
NG
Replace the A/C-ECU.
Page 442 of 558

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-52
Inspection procedure 15
A/C-ECU power supply circuit check
NG
Repair OK
Check the trouble symptom.
NG
Check the harness between the A/C-ECU and the fusible link
No.1, and repair if necessary.
OK
Check the trouble symptom.
NG
Check the harness between the A/C-ECU and the junction block,
and repair if necessary.
OK
Check the following connector:
B-05NG
Repair
OK
Check the trouble symptom.NGReplace the A/C-ECU.
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the A/C-ECU and the body earth,
and repair if necessary.
NG
Repair
OK
Measure at the A/C-ECU connector B-05.
Disconnect the connector, and measure at the harness
side connector.
Continuity between terminal (29) and body earth
OK:Continuity
Continuity between terminal (35) and body earth
OK:ContinuityNGCheck the following connectors:
B-05, B-48, B-19, B-69, B-80
OK
Measure at the A/C-ECU connector B-05.
Disconnect the connector, and measure at the harness
side connector.
Voltage between terminal (28) and body earth (Ignition
switch: ON)
OK:System voltageNGCheck the following connectors:
B-49, B-75, B-76
Measure at the A/C-ECU connector B-04.
Disconnect the connector, and measure at the harness
side connector.
Voltage between terminal (3) and body earth
OK:System voltageNGCheck the following connectors:
B-49, B-75, B-73
Page 456 of 558

C-2
STOP LAMP 51. . . . . . . . . . . . . . . . . . . . . . . . . .
BACK-UP LAMP 52. . . . . . . . . . . . . . . . . . . . . . .
METER AND GAUGE 54. . . . . . . . . . . . . . . . . .
FUEL WARNING LAMP 56. . . . . . . . . . . . . . . .
BRAKE WARNING LAMP 56. . . . . . . . . . . . . .
OIL PRESSURE WARNING LAMP 57. . . . . .
SEAT BELT WARNING LAMP 57. . . . . . . . . .
CENTRAL DOOR LOCKING SYSTEM 58. .
Without Keyless Entry System 58. . . . . . . . . . . .
With Keyless Entry System 60. . . . . . . . . . . . . . .
HEATER AND AIR CONDITIONER 64. . . . . .
FULL-AUTO AIR CONDITIONER 70. . . . . . . .
WINDSHIELD WIPER AND WASHER 78. .
With Intermittent Wiper 78. . . . . . . . . . . . . . . . . . .
REAR WIPER AND WASHER 79. . . . . . . . . .
DEFOGGER AND DOOR MIRROR
HEATER 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Without Full-Auto Air Conditioner 80. . . . . . . . . .
With Full-Auto Air Conditioner 82. . . . . . . . . . . . .
RADIO 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Spare Circuit 84. . . . . . . . . . . . . . . . . . . . . .
4 Speaker, 6 Speaker 86. . . . . . . . . . . . . . . . . . . .
KEY REMINDER BUZZER 89. . . . . . . . . . . . . .
ANTI-SKID BRAKING SYSTEM (ABS) 90. .
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) 96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACTIVE YAW CONTROL SYSTEM (AYC) 98
INTERCOOLER AND RADIATOR WATER
SPRAY SYSTEM 104. . . . . . . . . . . . . . . . . . . . .
Page 512 of 558
CIRCUIT DIAGRAMS –
Central Door Locking System
C-58
CENTRAL DOOR LOCKING SYSTEM
Page 513 of 558
CIRCUIT DIAGRAMS –
Central Door Locking System
C-59
Page 514 of 558
CIRCUIT DIAGRAMS –
Central Door Locking System
C-60
CENTRAL DOOR LOCKING SYSTEM