Page 849 of 2248
4. Control Unit
1. LHD MODEL
B4M0369A
1Back plate
2Bulb
3Fan switch ASSY
4Illumi. plate
5Switch base
6Control panel
7Fan switch knob
8RECIRC switch
9A/C switch
10Temp. switch knob
11Mode switch
12Temp. lever ASSY
13Base plate
14Control amp.
15Temp. control cable
9
4-6COMPONENT PARTS
4. Control Unit
Page 850 of 2248
2. RHD MODEL
B4M0057A
1Back plate
2Bulb
3Fan switch ASSY
4Illumi. plate
5Switch base
6Control panel
7Fan switch knob
8RECIRC switch
9A/C switch
10Temp. switch knob
11Mode switch
12Temp. lever ASSY
13Base plate
14Control amp.
15Temp. control cable
10
4-6COMPONENT PARTS
4. Control Unit
Page 851 of 2248
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the instrument
panel, heater unit, blower motor and control unit.
CAUTION:
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when servicing the instrument panel, heater unit,
blower motor and control unit.
2. Heater Unit
A: REMOVAL AND INSTALLATION
1) Disconnect GND cable from battery.
2) Remove heater hoses (inlet, outlet) in engine compart-
ment.
NOTE:
Drain as much coolant from heater unit as possible, and
plug disconnected hose with cloth.
3) Remove instrument panel.
4) Remove steering support beam.
5) Remove evaporator. (With A/C model)
G4M0554
6) Remove heater unit.
11
4-6SERVICE PROCEDURE
1. Supplemental Restraint System“Airbag”- 2. Heater Unit
Page 852 of 2248
1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the instrument
panel, heater unit, blower motor and control unit.
CAUTION:
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuit.
Be careful not to damage Airbag system wiring har-
ness when servicing the instrument panel, heater unit,
blower motor and control unit.
2. Heater Unit
A: REMOVAL AND INSTALLATION
1) Disconnect GND cable from battery.
2) Remove heater hoses (inlet, outlet) in engine compart-
ment.
NOTE:
Drain as much coolant from heater unit as possible, and
plug disconnected hose with cloth.
3) Remove instrument panel.
4) Remove steering support beam.
5) Remove evaporator. (With A/C model)
G4M0554
6) Remove heater unit.
11
4-6SERVICE PROCEDURE
1. Supplemental Restraint System“Airbag”- 2. Heater Unit
Page 853 of 2248
7) Installation is in the reverse order of removal.
Fitted length of heater hose over pipe:
25 — 30 mm (0.98 — 1.18 in)
8) Pour coolant.
B5M0025
3. Blower Motor Assembly
A: REMOVAL AND INSTALLATION
1) Disconnect GND cable from battery.
2) Remove glove box and pocket back panel.
[W1A0].>
3) Disconnect blower motor harness connector.
G4M0555
4) Disconnect aspirator pipe1.
5) Remove blower motor mounting screw.
6) Remove blower motor assembly.
7) Installation is in the reverse order of removal.
12
4-6SERVICE PROCEDURE
2. Heater Unit - 3. Blower Motor Assembly
Page 854 of 2248
7) Installation is in the reverse order of removal.
Fitted length of heater hose over pipe:
25 — 30 mm (0.98 — 1.18 in)
8) Pour coolant.
B5M0025
3. Blower Motor Assembly
A: REMOVAL AND INSTALLATION
1) Disconnect GND cable from battery.
2) Remove glove box and pocket back panel.
[W1A0].>
3) Disconnect blower motor harness connector.
G4M0555
4) Disconnect aspirator pipe1.
5) Remove blower motor mounting screw.
6) Remove blower motor assembly.
7) Installation is in the reverse order of removal.
12
4-6SERVICE PROCEDURE
2. Heater Unit - 3. Blower Motor Assembly
Page 855 of 2248
B5M0027
4. Control Unit
A: REMOVAL
1) Disconnect GND cable from battery.
2) Set temperature control lever to“FULL COLD”position.
3) Remove temperature control cable from heater unit.
NOTE:
Do not attempt to move link of heater unit during installa-
tion.
B4M0370
4) Remove cup holder.
5) Remove center panel and then disconnect connector.
B4M0059
6) Remove control unit assembly and disconnect connec-
tor.
B4M0060A
B: INSPECTION
1. FAN SWITCH
Check continuity between terminals at each switch posi-
tion.
LHD model
Switch
positionTerminals
123456
1
2
3
4
GND IGN
13
4-6SERVICE PROCEDURE
4. Control Unit
Page 856 of 2248
RHD model
Switch
positionTerminals
123456
1
2
3
4
GND IGN
B4M0061A
2. CONTROL UNIT
Check circuit continuity between each terminal, when push
control switch is turned ON.
LHD model
Terminal
No.Mode selector switch RECIRC switch
A/C
switchIllumi.
VENT BI-LEV HEATDEF/
HEATDEF RECIRC FRESH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
14
4-6SERVICE PROCEDURE
4. Control Unit