Page 656 of 1463

M161 ENGINE CONTROLS 1F2-7
No ignition voltage output(NO.1 ignition coil;
1, 4cylinder)
No ignition voltage output(NO.2 ignition coil;
2, 3cylinder)
Cranshaft position sensor adaption failure
Start signal recognition failure
No.1 injector short(PWR)
No.1 injector open/short(GND)
No.2 injector short(PWR)
No.2 injector open/short(GND)
No.3 injector short(PWR)
No.3 injector open/short(GND)
No.4 injector short(PWR)
No.4 injector open/short(GND)
High oxygen sensor voltage
Low oxygen sensor amplifying voltage
Oxygen sensor operating failure
Not excessive lean indication in oxygen
sensor(during coasting)
Oxygen sensor heater short(power)
Oxygen sensor heater open/short(GND)
Low oxygen sensor voltage
Short learning control failure
Lambda control failure (rich stop)
Lambda control failure (lean stop)
Lambda idle adaptation failure(above rich
threshold)
Lambda idle adaptation failure(below lean
threshold)
learning control failure(rich, low load) Coolant temperature sensor open
Coolant temperature sensor short
Coolant temperature sensor signal failure
Intake temperature sensor open
Intake temperature sensor short
Intake temperature sensor signal failure
Low battery voltage
HFM sensor signal failure
HFM sensor signal failure (Low)
HFM sensor signal failure (High)
Crankshaft position sensor signal failure
(no engine revolution signal)
Crankshaft position sensor signal failure
(rpm > max. value)
No.1 cylinder recognition failure
Crankshaft position sensor signal failure
(gab recognition failure)
Transmission coding failure
Transponder signal communication failure
CAN communication failure : TCU(A/T only)
CAN communication failure :
communication initialization failure
Fuel pump relay short(PWR)
Fuel pump relay open/short(GND)
Purge valve short
Purge valve open/short
Condenser fan(HI) relay short(PWR)
Condenser fan(HI) relay short(GND)
No.1 knock sensor signal failure
No.1 cylinder synchronization failure 00
01
02
03
04
05
08
09
10
11
17
18
19
20
21
25
26
31
34
35
40
41
44
45
56
58
Failure
codeDescriptionFailure
codeDescription
64
65
67
71
72
73
74
75
76
77
78
79
80
81
82
83
86
87
89
93
96
97
98
99
100
SELF DIAGNOSIS FAILURE CODE (FOR E23 ENG)
Page 1275 of 1463

SECTION 7B/C
MANUAL CONTROL /
SEMIAUTO TEMPERATURE CONTROL
HEATING, VENTILATION AND AIR
CONDITIONING SYSTEM
Caution: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise
noted.
Specifications . . . . . . . . . . . . . . . . . . . . . . 7B/C-2
Cooling Capacity . . . . . . . . . . . . . . . . . . . . 7B/C-2
Compressor . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-2
Condenser . . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-2
Receiver Drier . . . . . . . . . . . . . . . . . . . . . . 7B/C-2
Dual Pressure Switch . . . . . . . . . . . . . . . . . 7B/C-2
Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-3
Heater Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-3
Fastener Tightening Specifications . . . . . . . 7B/C-3
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-4
Defectives in Fan Motor Circuit . . . . . . . . . . 7B/C-5
Defectives in Compressor Circuit . . . . . . . . 7B/C-5
TABLE OF CONTENTS
Component Locator . . . . . . . . . . . . . . . . . 7B/C-6
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-6
Air Conditioner System . . . . . . . . . . . . . . 7B/C-8
Diesel Engine . . . . . . . . . . . . . . . . . . . . . . . 7B/C-8
Gasoline Engine . . . . . . . . . . . . . . . . . . . . . 7B/C-9
Maintenance and Repair . . . . . . . . . . . . 7B/C-10
Refrigerant Charging . . . . . . . . . . . . . . . . 7B/C-10
Condenser . . . . . . . . . . . . . . . . . . . . . . . . 7B/C-14
Receiver Drier . . . . . . . . . . . . . . . . . . . . . 7B/C-18
Compressor . . . . . . . . . . . . . . . . . . . . . . . 7B/C-21
Heater and Air Conditioner Control Box . . 7B/C-25
Page 1277 of 1463
MANUAL & SEMIAUTO-HVAC 7B/C-3
Application
Type
Expansion Valve
Resistance
Thermo AmpDescription
Tank laminated
Uniform external pressure type (1.5 RT)
4 stage (Coil resistance)
Sensor type OFF : 2±0.5°C, DIFF : 2±0.5°C
EVAPORATOR
Application
Heater Core Type
Heating Capacity
Heater Core Size (LxWxT)Description
2-ROW
4,600 kcal/h (AT 300 CMH)
219.5 x 151.8 x 52.0
HEATER UNIT
Application
Condenser Bolt
Condenser Fan Nut
Condenser Bolt
Receiver Drier Pipe Bolt
Receiver Drier Pipe Bolt (Condenser)
Pressure Pipe Bolt
Pressure Mounting BoltNlm
4-6
4-6
4-6
5-8
4-6
20-30
20-26
FASTENER TIGHTENING SPECIFICATIONS
Page 1279 of 1463

MANUAL & SEMIAUTO-HVAC 7B/C-5
Action
Clean oily plate using cleaning agent.
Charge battery or check for cause.
Check wire continuity
Check A/C switch and fan switch for continuity and ground.
DEFECTIVES IN FAN MOTOR CIRCUIT
Fan Motor Does Not Run
Checks
Blown fuse
Battery voltage is low
Faulty wiring
Faulty groundAction
Check for short and replace fuse.
Check battery voltage.
Check connectors’ connection.
Do not apply grease. This can cause voltage down.
Remove body painting and completely ground,
Tighten ground bolts and make sure body ground connection.
Checks
Blown resister temperature fuse
Air leakage in parts connection
Action
Replace resistor.
Check heater, cooling unit and blower for proper connection.
Fan Motor Runs in ‘4’position Only (‘3’, ‘2’, ‘1’ : Does Not Run)
Frosted Evaporator
DEFECTIVES IN COMPRESSOR CIRCUIT
Compressor Does Not Run
Checks
Faulty thermo ampAction
Frosted evaporator reduces cooling capacity.
Off compressor and maximize blowing capacity
Checks
Faulty high/low pressure
Faulty A/C relayAction
Check compressor magnet voltage supply.
A/C relay.
Checks
Oily clutch plate
Low voltage
Faulty electric connection or operation
Magnetic Clutch Slips /Idles
Checks
Clogged or blocked intake grilleAction
Clogged or blocked intake grille reduces blowing capacity.
Motor Runs With Poor Blowing
Checks
Excessive clearance between
Clutch plate and clutch coilAction
Adjust clutch clearance (0.2-0.6mm).
Magnetic Clutch Plays By Hand Only
Page 1282 of 1463
7B/C-8 MANUAL & SEMIAUTO-HVAC
AIR CONDITIONER SYSTEM
DIESEL ENGINE
1 Compressor
2 High Pressure Hose
3 Condenser Fan
4 Condenser
5 Liquid Pipe (A)
6 Receiver Drier
7 Liquid (B)
8 Evaporator Assembly
9 Low Pressure Hose10 Water Inlet Hose
11 Water Outlet Hose
12 Control Assembly
13 Heater Unit Amplifier
14 Mix Actuator Assembly
15 Blower Unit
16 Heater Unit
17 Mode Actuator Assembly
Page 1283 of 1463
MANUAL & SEMIAUTO-HVAC 7B/C-9
GASOLINE ENGINE
1 Compressor
2 High Pressure Hose
3 Condenser
4 Main Condenser Fan
5 Sub Condenser Fan
6 Condenser Fan Resistor
7 Liquid Pipe(A)
8 Receiver Dryer
9 Liquid Pipe(B)
10 Grommet11 Evaporator Assembly
12 Control Assembly
13 Heater Unit Amp
14 Mix Actuator
15 Blower Unit
16 Heater Unit
17 Mode Actuator Assembly
18 Water Inlet Hose
19 Water Outlet Hose
Page 1299 of 1463
MANUAL & SEMIAUTO-HVAC 7B/C-25
HEATER AND AIR CONDITIONER CONTROL BOX
1 Blower Switch
2 Recirculation Switch
3 Mode Switch4 A/C Switch
5 Temperature Control Lever
6 In-vehicle Sensor
MANUAL
SATC
Page 1325 of 1463

SUPPLEMENTAL RESTRAINT SYSTEM(SRS) 8B-21
AIR BAG CONTROL UNIT(AC4)
Removal & Installation Procedure
AC4 is installed on the center portion of the front floor tunnel.
Built-in accelerometer sensor detects collision and determines
action or non-action and ignition time.
Notice
Do not disassemble the AC4 to repair. If defective, replace it.
AC4 should not be shocked or vibrated by dropping on the
ground or bumping.
Replace the AC4 with new after air bag inflation.
1. Disconnect the negative battery cable and wait for 30
seconds before starting service.
Notice
Though battery cable is disconnected, air bag control unit
will maintain backup power for 150ms and air bag can be
inflated, so wait for min.30 seconds.
2. Remove the console box and center fascia panel assembly.
3. Remove the heater control switch and audio assembly.
4. Remove the lower side panel of the driver’s portion and
glove box.
5. Remove the lower main panel.
6. Release the lock lever of the AC4 connector and disconnect
the connector.
7. Unscrew 3 nuts and remove the AC4.
Notice
For installation, horizontal position should be secured for
the better changes of collision pulse between the vehicle
body and air bag control unit.
8. Installation should follow the removal procedure in the
reverse order.
Inspection Procedure
1. Check AC4 case and welt bolts for crack or deformation.
2. Check connector, lock lever and terminal for deformation.
Notice
Replace the AC4 with new if dust, deformation or corrosion
found.