Page 1537 of 4770

± AIR CONDITIONINGTROUBLESHOOTING
AC±15
2497 Author: Date:
Cool air comes out only at high engine rpm
1. Refrigerant volume
2. Drive belt
3. Magnetic clutch
4. Compressor
5. Condenser
6. Condenser fan
7. Receiver
8. Expansion valve
9. Evaporator
10.Thermistor
11. Refrigerant line
12.Pressure switch
13.*
1 ECM
*2 A/C amplifier
AC±3
AC±16
AC±16
AC±39
AC±52
AC±74
AC±49
AC±59
AC±30
AC±24
AC±21
AC±67
DI±218
AC±88
No engine idle±up when A/C switch ON
1. *1 ECM
*2 A/C amplifier
2. Wire harness
DI±218
AC±88
±
Blinking of A/C indicator
1. *1 ECM
*2 A/C amplifier
2. Thermistor
3. Compressor
DI±218
AC±88
AC±24
AC±39
A/C indicator does not lights up when turn mode switch to DEF.
position
1. A/C Fuse
2. Mode switch
3. A/C switch
4. *
1 ECM
*2 A/C amplifier
5. Wire harness
±
AC±84
AC±84
DI±218
AC±88
±
No warm air comes out
1. Engine coolant volume
2. A/C control assembly
3. Heater radiator±
AC±80
AC±57
No condenser fan operation
1. CDS FAN Fuse
2. Engine main relay
3. Cooling fan relay No. 1
4. Cooling fan relay No. 2
5. Cooling fan relay No. 3
6. Condenser fan motor
7. Pressure switch
8. *
1 Engine coolant temp. switch
*2 No. 1 Engine coolant temp. switch
9. *2No. 2 Engine coolant temp. switch
10.Wire harness
±
±
AC±72
AC±72
AC±72
AC±74
AC±67
AC±92
AC±92
AC±92
±
*1: 5S±FE Engine Models
*
2: 1MZ±FE Engine Models
Page 1538 of 4770
CH0086
Correct Wrong
AC0LM±02
N17028
Generator
Crankshaft Pulley
Compressor
N01881
DENSOBorroughs AC±16
± AIR CONDITIONINGDRIVE BELT
2498 Author: Date:
DRIVE BELT
ON±VEHICLE INSPECTION
1. INSPECT DRIVE BELT'S INSTALLATION CONDITION
Check that the drive belt fits properly in the ribbed grooves.
2. INSPECT DRIVE BELT TENSION
Using a belt tension gauge, check the drive belt tension.
Drive belt tension:
New belt: 165 ± 26 lbf
Used belt: 110 ± 11 lbf
HINT:
ºNew beltº refers to a belt which has been used less than
5 minutes on a running engine.
ºUsed beltº refers to a belt which has been used on a run-
ning engine for 5 minutes or more.
After installing the drive belt, check that it fits properly in
the ribbed grooves.
Page 1539 of 4770
AC0LN±02
Z19189
Pivot Bolt
Adjusting Bolt
Drive Belt
Pivot Bolt
Drive Belt
Adjusting Lock
Bolt
Adjusting Bolt 5S±FE:
1MZ±FE:
Adjusting Lock
Bolt
± AIR CONDITIONINGDRIVE BELT
AC±17
2499 Author: Date:
REMOVAL
REMOVE DRIVE BELT
(a) Loosen the pivot bolt and adjusting lock bolt.
Torque:
5S±FE:
Pivot bolt: 52 N´m (530 kgf´cm, 38 ft´lbf)
Adjusting lock bolt: 18 N´m (185 kgf´cm, 13 ft´lbf)
1MZ±FE:
Pivot bolt: 56 N´m (570 kgf´cm, 41 ft´lbf)
Adjusting lock bolt: 18 N´m (185 kgf´cm, 13 ft´lbf)
(b) Loosen the drive belt tension by adjusting bolt and re-
move the drive belt.
Page 1540 of 4770
AC0LO±01
AC±18
± AIR CONDITIONINGDRIVE BELT
2500 Author: Date:
INSTALLATION
Installation is in the reverse order of removal (See page AC±17).
Page 1541 of 4770
N20312
High Pressure
Charging hose Low Pressure
Charging Hose
AC0LP±02
N04392
Sleeve
± AIR CONDITIONINGMANIFOLD GAUGE SET
AC±19
2501 Author: Date:
MANIFOLD GAUGE SET
SET ON
1. CONNECT CHARGING HOSES TO MANIFOLD
GAUGE SET
Tighten the nuts by hand.
CAUTION:
Do not connect the wrong hoses.
2. CONNECT QUICK DISCONNECT ADAPTERS TO
CHARGING HOSES
Tighten the nuts by hand.
3. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
4. REMOVE CAPS FROM SERVICE VALVES ON RE-
FRIGERANT LINE
5. CONNECT QUICK DISCONNECT ADAPTERS TO SER-
VICE VALVES
HINT:
Push the quick disconnect adapter onto the service valve, then
slide the sleeve of the quick disconnect adapter downward to
lock it.
Page 1542 of 4770
AC0LQ±02
N06553
AC±20
± AIR CONDITIONINGMANIFOLD GAUGE SET
2502 Author: Date:
SET OFF
1. CLOSE BOTH HAND VALVES OF MANIFOLD GAUGE
SET
2. DISCONNECT QUICK DISCONNECT ADAPTERS
FROM SERVICE VALVES ON REFRIGERANT LINE
HINT:
Slide the sleeve of the quick disconnect adapter upward to un-
lock the adapter and remove it from the service valve.
3. INSTALL CAPS TO SERVICE VALVES ON REFRIGER-
ANT LINE
Page 1543 of 4770
AC0LR±01
± AIR CONDITIONINGREFRIGERANT LINE
AC±21
2503 Author: Date:
REFRIGERANT LINE
ON±VEHICLE INSPECTION
1. INSPECTION HOSE AND TUBE CONNECTIONS FOR LOOSENESS
2. INSPECT HOSES AND TUBES FOR LEAKAGE
Using a gas leak detector, check for leakage of refrigerant.
Page 1544 of 4770
AC0LS±02
I07049
Suction TubeLiquid Tube
Piping Clamp
Liquid Tube
Suction Hose
Discharge Hose
N´m (kgf´cm, ft´lbf) : Specified torque
32 (330, 24)
5.4 (55, 48 in.´lbf)
5.4 (55, 48 in.´lbf)
10 (100, 7)
10 (100, 7)
10 (100, 7)
14 (140, 10)
5.4 (55, 48 in.´lbf)
AC±22
± AIR CONDITIONINGREFRIGERANT LINE
2504 Author: Date:
LOCATION