Page 546 of 788
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-62
STEP 5. Check the wiring harness between B-17X
A/C compressor relay connector terminal No.2
and the ignition switch (IG2).
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-135, joint connector C-35,
junction block connectors C-209 and C-210, and
repair if necessary.
•Check the A/C compressor relay power supply
line for open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction P.00-5).
NO : Repair the wiring harness.
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303814
Connector: C-35
AI
C-35(L)
AC303818
Connector: C-135
AH
C-135 (L)
AC303823
Connectors: C-209, C-210
AE
C-210
Junction block (front view)
C-209
C-209
Harness side
1016
145
12134117 238 9
C-210
Harness side
4 65321
Page 547 of 788
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-63
STEP 6. Voltage measurement at B-17X A/C
compressor relay connector.
(1) Remove the relay, and measure at the junction
block side.
(2) Measure the voltage between terminal 1 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 8.
NO : Go to Step 7.
STEP 7. Check the wiring harness between B-17X
A/C compressor relay connector terminal No.1
and the battery.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector A-13 or C-111
, and repair if necessary.
•Check the A/C compressor relay power supply
line for open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction P.00-5).
NO : Repair the wiring harness.
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC301541EV
Connector B-17X
(Relay box side)
Front of
vehicle1
3 2
4
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303857
Connector: A-13
AB
A-13 (B)
AC303816
Connector: C-111
AF
615
121179
810234
Page 576 of 788
COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-92
REMOVAL SERVICE POINTS
<> FLEXIBLE SUCTION HOSE AND
FLEXIBLE DISCHARGE HOSE
DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies,
plug the dismantled hoses and compressor nipples.
<> DRIVE BELT REMOVAL <1300,
1600>
CAUTION
To reuse the drive belt, draw an arrow indicating
the rotating direction (clockwise) on the back of
the belt using chalk.
1. Loosen the power steering oil pump fixing bolts A,
B and C.
2. Turn the adjusting bolt D in the anti-clockwise
direction (to the left) to remove the drive belt.
<> DRIVE BELT REMOVAL <2000>
The following operations will be needed due to the
serpentine drive system with the alternator drive belt
auto tensioner.
1. Securely insert the spindle handle or ratchet
handle with a 12.7 mm insertion angle into the jig
hole of the alternator drive belt auto tensioner,
and turn the alternator drive belt auto tensioner
anti-clockwise until it hits the stopper.
CAUTION
To reuse the alternator drive belt, draw an arrow
indicating the rotating direction (clockwise) on
the back of the alternator drive belt using chalk.
2. Align hole A with hole B, insert an L-shaped
hexagon wrench, etc. to fix and then remove the
alternator drive belt.
<> COMPRESSOR REMOVAL
Take care not to spill any compressor oil when
removing the compressor.
AC203472
AC
DB A
C
AC107640ADHole A
Hole B
Alternator drive belt
auto tensioner
AC107641AC
L-shaped
hexagon
wrench
Alternator drive belt
auto tensioner
Page 578 of 788
Page 579 of 788
COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-95
>>B<< SNAP RING INSTALLATION
Using snap ring pliers, fit the snap ring so that the
snap ring’s tapered part is on the outside.
>>C<< SELF-LOCKING NUT
INSTALLATION
Use the special tools to install the self-locking nut.
•Special spanner (MB991367)
•Pin (MB991386)
>>D<< AIR GAP ADJUSTMENT
Check that the clutch air gap is inside the standard
value. If outside the standard value, use a shim to
adjust the gap.
Standard value: 0.3 − 0.5 mm
INSPECTIONM1552014300950
REFRIGERANT TEMPERATURE SWITCH
CAUTION
Do not heat more than necessary.
1. Dip the metal part of the cooling temperature
switch into engine oil and increase the oil
temperature using a gas burner or similar.
2. When the oil temperature reaches the standard
value, check that voltage is supplied between the
terminals.
Standard value:
NOTE: When the oil temperature is 150
°C or
more and there is no continuity, the resistance will
not be 2
Ω or lower until the oil temperature
reduces to 120
°C or less.
AC001412
Snap ring
RotorClutch coil
Tapered part
AB
AC100633AB
MB991386
MB991367
AC100637AB
Thickness
gauge
Item Temperature
Less than 2
ohmsSlightly below 150°C
No continuity 150°C or more
AC100787
Thermometer
Engine oil
AB
AC100810
Continuity
No continuity
Oil temperature
AD
120˚C150˚C
Page 590 of 788
Page 596 of 788
FUSIBLE LINK AND FUSE
COMPONENT LOCATIONS70-10
FUSIBLE LINK AND FUSE
M1701000100476
Name Symbol Name Symbol
Fuses No.1 to 20
(Passenger compartment)C Fusible links No.1 to 5
(Engine compartment)B
Fuses No.6 to 25
(Engine compartment)B Fusible link No.26
(Battery positive terminal)A
AC301758AD
AB
C
AC208658AE
A
Fusible link No.26
Battery
AC301729AD
B
Fusible link No.1
Relay box
Fusible links
No.4,5
Fusible links
No.2,3
AC301730
B
AB
Fuses
No.6 to 25
Relay box
AC301761
C
AB
Fuses No.1 to 20
Junction
block
Page 602 of 788
EARTH
COMPONENT LOCATIONS70-16
AC300427
1
AD
AC301737AB
2
3
,
2
3
AC300429
AB
2
Junction
block
AC206768AD
3
16
,
3
16
AC301742AB
4
Glove box
AC301741AB
5
Diagnosis
connector
AC100195
6
AC
Windshield
wiper arm
AC212109AC
6Steering column
shaft assembly
