evaporator SUZUKI SWIFT 2008 2.G Service Owner's Guide

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NOTE
When no current DTC is detected, all contents displayed on display (1) of HVAC control module and
defroster indicator (2) flash at the same time.

Fail-Safe TableS7RS0B7224006
When any of the following malfunctions (DTCs) is detected, fail-safe mode is activated.
However, when HVAC control module detects normal ope ration of A/C system, fail-safe mode is cancelled.
)
B1562 14 18 18 Outside air temperatur e sensor signal malfunction Flashed
) B1563 d4 20 19 A/C refrigerant pressure sensor signal malfunction —
— See NOTE
below
(current DTC) ——Normal —
00 (history DTC)
DTC No.
(displayed on
SUZUKI
scan tool) DTC
(indicated on
display of HVAC
control
module) Priority of
display
(current DTC) Priority
of
display
(history DTC) Diagnosis
“AUTO”
indicator lamp
1
2
I5RS0A722009-01
DTC No.
Trouble Area Fail-Safe Operation
)
B1502 Inside air temperature sensor and/
or its circuit HVAC control module controls actu
ators assuming that inside air
temperature is 25 ° C (77 °F).
)
B1503 A/C evaporator temperature sensor
and its circuit • HVAC control module turn
s off A/C switch signal.
• HVAC control module controls actu ators assuming that evaporator
temperature is 0 ° C (32 °F).
)
B1504 Sunload sensor and/or its circuit HVAC control module controls actu
ators assuming that amount of
sunlight is 0 W/m
2.
) B1551 Serial communication circuit
HVAC control module controls actuators assuming that outside air
temperature is 20 ° C (68 °F), engine coolant temperature is 80 °C
(176 °F), and vehicle speed is 40 km/h (25 mph).
)
B1552 Serial communication circuit
)
B1553 CAN communication circuit
)
B1557 Vehicle speed sensor and/or its
circuit HVAC control module controls act
uators assuming that vehicle speed
is 40 km/h (25 mph).
)
B1561 Engine coolant temperature sensor
and/or its circuit HVAC control module controls act
uators assuming that engine coolant
temperature is 80 ° C (176 °F).
)
B1562 Outside air temperature sensor
and/or its circuit HVAC control module controls actu
ators assuming that outside air
temperature is 20 ° C (68 °F).

Downloaded from www.Manualslib.com manuals search engine 7B-46 Air Conditioning System: Automatic Type
Scan Tool DataS7RS0B7224007
As the data values given in the following are standard values estimated on the basis of values obtained from the
normally operation vehicles by using a scan tool, use them as reference values. Even when the vehicles are in good
condition, there may be cases where the checked values do not fall within each specifies data range. Therefore,
judgement as abnormal should not be ma de by checking with these data alone.
Scan Tool Data Condition Normal Condition / Reference
Va l u e
) TEMP CONT
SWITCH Each reference value is relative to the position of
temperature selector of HVAC control module. Max Cool, 18.5
°C (65 ° F), 19 °C (66
° C) – 31 °C (88 °F), 31.5 °C (89 °F),
Max Hot
) CABIN
TEMPERATURE Reference value is relative to in-car temperature. –6.5
°C – 57.25 ° C
(20.3 °F – 135.05 °F)
) OUTSIDE AIR TEMP Reference value is relative to outside air
temperature. –23.3
°C – 65.95 °C
(–9.94 °F – 150.71 °F)
) EVAPORATOR
TEMP Reference value is relative to temperature of
evaporator. –29.7
°C – 59.55 °C
(–21.46 °F – 139.19 °F)
) COOLANT TEMP At specified id le speed after warming up. 80 °C – 100 °C (176 ° F – 212 ° F)
) SUN LOAD Reference value depends on the situation. 0 W/m
2 – 4447.8 W/m2
)MODE CONT
SWITCH Each reference value is relative to the position of air
flow selector of HVAC control module.
AUTO, FACE, B/L, FOOT, D/F, DER
) FAN CONT SWITCH Each reference value is relative to the position of
blower speed selector of HVAC control module. AUTO, OFF, 1st, 2nd – 7th, 8th
) FAN DESIRED VOLT Reference value is relative to the position of blower
speed selector of HVAC control module. 0 – 16.0 V
) AIR MIX POS SEN Reference value is relative to the position of
temperature selector of HVAC control module. about 2.0 V (Max Hot)
about 4.0 V (Max Cool)
) MODE POS SENSOR Reference value is relative to the position of air flow
selector of HVAC control module. about 1.6 V (DEF)
about 4.0 V (VENT)
) A/C CONT SIG A/C system is ON. ON
A/C system is OFF. OFF
) BLOWER LOAD SIG Position of blower speed selector is 1st position or
more.
ON
Position of blower speed selector is OFF position. OFF
) AIR INTAKE MODE Fresh air (FRE) mode is activated. FRE
Recirculation air (REC) mode is activated. REC
AUTO mode is activated. AUTO
) REFRIGERANT
PRESSURE Engine running. A/C ON (A/C is operating)
at ambient temperature:
30
°C (86 °F) 1470 – 1770 kPa For more details,
refer to pressure of high pressure
gauge under “A/C System Performance Inspection”
A/C OFF (A/C is not
operating) at ambient
temperature: 30 °C (86
° F) and engine coolant
temperature: 90 ° – 100
° C 600 – 1000 kPa After longer than 10
min from A/C switch turned off
) A/C COMP CLUTCH Engine running. A/C switch and blower
motor switch turned ON
ON
A/C switch and/or blower
motor switch turned OFF OFF
) DFR INDICATOR Defroster indicator
lamp is lighted. ON
Defroster indicator la mp is not lighted. OFF
) VEHICLE SPEED At stop. OFF
0 km/h (0 mph)

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Scan Tool Data Definitions
TEMP CONT SWITCH (TEMPERATURE SELECTOR): Position of temperature control
selector of HVAC control module
CABIN TEMPERATURE: In-car temperature detected
by inside air temperature sensor installed in HVAC
control module
OUTSIDE AIR TEMP (OUTSIDE AIR TEMPERATURE): Outside air temperature
detected by outside air temperature sensor installed
in front bumper member
EVAPORATOR TEMP (EVAPORATOR TEMPERATURE): Temperature of air passed
through evaporator
COOLANT TEMP (ENGINE COOLANT TEMPERATURE): Engine coolant temperature
detected by engine coolant temperature sensor
SUN LOAD: Amount of sunlight detected by sunload
sensor installed on the driver side on the dashboard
MODE CONT SWITCH (MODE (AIR FLOW) SELECTOR): Position of air flow selector of HVAC
control module
FAN CONT SWITCH (BLOWER SPEED SELECTOR): Position of blower speed selector of HVAC control
module
FAN DESIRED VOLT: Voltage for blower motor AIR MIX POS SEN (TEMPERATURE CONTROL
ACTUATOR POSITI ON SENSOR): Input signal
from position sensor in temperature control actuator
MODE POS SENSOR (AIR FLOW CONTROL ACTUATOR POSITI ON SENSOR): Input signal
from position sensor in air flow control actuator
A/C CONT SIG (A/C SWITCH SIGNAL, ON or OFF): State of A/C switch
BLOWER LOAD SIG (BLO WER FAN LOAD SIGNAL,
ON or OFF): ON: Position of blower speed selector
is 1st position or more / OFF: Position of blower
speed selector is OFF position.
AIR INTAKE MODE (AUTO, FRE or REC): State of air
intake mode
REFRIGERANT PRESSURE (A/C REFRIGERANT ABSOLUTE PRESSURE): This parameter
indicates A/C refrigerant absolute pressure
calculated by ECM
A/C COMP CLUTCH (A/C COMPRESSOR MAGNET CLUTCH, ON or OFF): This parameter indicates
the state of the A/C switch
DFR INDICATOR (DEFROSTER INDICATOR LAMP, ON or OFF): State of defroster indicator lamp
VEHICLE SPEED: It is computed based on pulse
signals from vehicle speed sensor
Air Conditioning System CheckS7RS0B7224008
Step Action YesNo
1 Customer complaint analysis
1) Perform )”Customer complaint analysis”.
Was customer complaint analysis performed? Go to Step 2.
Perform customer
complaint analysis.
2 Visual inspection
1) Perform )“Visual inspection”.
Is there any faulty condition? Repair or replace
malfunction part.
Go to Step 3.
3 DTC check
1) Perform )“DTC check”.
Is there any DTC code? Go to Step 4.
Go to Step 5.
4 Troubleshooting malfunction
1) Perform ) “Troubleshooting malfunction”.
Is there any faulty condition? Repair or replace
malfunction part, and go
to Step 7.
Go to Step 5.
5 Perform A/C system symptom diagnosis
1) Inspect and repair referri ng to “A/C System Symptom
Diagnosis”.
Is there any faulty condition? Repair or replace
malfunction part, and go
to Step 7.
Go to Step 6.
6 Check for intermittent problem
1) Check for intermittent troubles referring to “Intermittent
and Poor Connection Inspection in Section 00”.
Is there any faulty condition? Repair or replace
malfunction part, and go
to Step 7.
Go to Step 7.
7 Final confirmation test
1) Perform ) “Final confirmation test”.
Is there any malfunction code? Go to Step 4.
End.

Downloaded from www.Manualslib.com manuals search engine 7B-50 Air Conditioning System: Automatic Type
DTC B1503: A/C Evaporator Air Temperature Sensor and/or Its Circuit MalfunctionS7RS0B7224011
Wiring Diagram2
Inside air temperature sensor signal circuit check
1) Disconnect connector from HVAC control module with
ignition switch turned OFF.
2) Check for proper connection to HVAC control module connector at “G52-6” and “G52-3” terminals.
3) If OK, measure resistance between “PNK/BLK” wire terminal of inside air temp erature sensor connector and
“G52-6” terminal of HVAC control module connector.
Is resistance below 5
Ω? Go to Step 3. “PNK/BLK” wire open or
high resistance circuit.
3 Inside air temperature sensor signal circuit check
1) Measure resistance between “PNK/BLK” wire terminal of
inside air temperature sensor connector and vehicle
body ground.
Is resistance infinity? Go to Step 4.
“PNK/BLK” wire shorted
to ground circuit.
4 Inside air temperature sensor signal circuit check
1) Measure voltage between “PNK/BLK” wire terminal of
inside air temperature sensor connector and vehicle
body ground with ignition switch turned ON.
Is voltage 0 V? Go to Step 5.
“PNK/BLK” wire shorted
to other circuit.
5 Inside air temperature sensor ground circuit check
1) Connect HVAC control module connector with ignition
switch turned OFF.
2) Measure resistance between “ORN” wire terminal of inside air temperature sensor connector and vehicle
body ground.
Is resistance below 5
Ω? Go to Step 7. Go to Step 6.
6 Inside air temperature sensor ground circuit check
1) Measure resistance between “G52-3” terminal of HVAC
control module connector and vehicle body ground.
Is resistance below 5
Ω? “ORN” wire open or high
resistance circuit.
HVAC control module
faulty.
7 Inside air temperature sensor check
1) Check inside air temperature sensor referring to “Inside
Air Temperature Sensor Inspection”.
Is it in good condition? HVAC control module
faulty.
Inside air temperature
sensor faulty.
Step Action Yes No
5V
WHT/BLK
ORN G52-4
G52-3
2
1
3
7812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
I5RS0A722011-01
1. HVAC control module
2. Evaporator temperature sensor 3. To other sensors

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-51
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
When DTC B1502, B1513 and B1514 are indicated together, it is possible that “ORN” wire circuit open.

DTC Detecting ConditionTrouble Area
Evaporator temperature sensor signal voltage is higher than or lower than
specified value for specified time continuously. • Evaporator temperature sensor
circuit
• Evaporator temperature sensor
• HVAC control module
Step Action YesNo
1 Evaporator temperature sensor signal circuit check
1) Disconnect evaporator temperature sensor connector.
2) Check for proper connection to evaporator temperature
sensor at “WHT/BLK” and “ORN” wire terminals.
3) If OK, measure voltage between “WHT/BLK” wire terminal of evaporator te mperature sensor connector
and vehicle body ground with ignition switch turned ON.
Is voltage 4 – 6 V? Go to Step 5.
Go to Step 2.
2 Evaporator temperature sensor signal circuit check
1) Disconnect connector from HVAC control module with
ignition switch turned OFF.
2) Check for proper connection to HVAC control module connector at “G52-4” and “G52-3” terminals.
3) If OK, measure resistance between “WHT/BLK” wire terminal of evaporator te mperature sensor connector
and “G52-4” terminal of HVAC control module connector.
Is resistance below 5
Ω? Go to Step 3. “WHT/BLK” wire open
or high resistance
circuit.
3 Evaporator temperature sensor signal circuit check
1) Measure resistance between “WHT/BLK” wire terminal
of evaporator temperature sensor connector and vehicle
body ground.
Is resistance infinity? Go to Step 4. “WHT/BLK” wire
shorted to ground
circuit.
4 Evaporator temperature sensor signal circuit check
1) Measure voltage between “WHT/BLK” wire terminal of
evaporator temperature sens or connector and vehicle
body ground with ignition switch turned ON.
Is voltage 0 V? Go to Step 5. “WHT/BLK” wire
shorted to other circuit.
5 Evaporator temperature sensor ground circuit check
1) Connect HVAC control module connector with ignition
switch turned OFF.
2) Measure resistance between “ORN” wire terminal of evaporator temperature sens or connector and vehicle
body ground.
Is resistance below 5
Ω? Go to Step 7. Go to Step 6.
6 Evaporator temperature sensor ground circuit check
1) Measure resistance between “G52-3” terminal of HVAC
control module connector and vehicle body ground.
Is resistance below 5
Ω? “ORN” wire open or high
resistance circuit.
HVAC control module
faulty.

Downloaded from www.Manualslib.com manuals search engine 7B-52 Air Conditioning System: Automatic Type
DTC B1504: Sunload Sensor and/or Its Circuit MalfunctionS7RS0B7224012
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting7
Evaporator temperature sensor check
1) Check evaporator temperature sensor referring to
“Evaporator Thermistor (Evaporator Temperature
Sensor) Inspection”.
Is it in good condition? HVAC control module
faulty.
Evaporator temperature
sensor faulty.
Step Action Yes No
5V
PNK G52-2
G52-5
YEL/BLK
2
1
7812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
I5RS0A722012-01
1. HVAC control module
2. Sunload sensor
DTC Detecting Condition Trouble Area
Sunload sensor signal voltage is higher than or lower than specified value for
specified time continuously. • Sunload sensor circuit
• Sunload sensor
• HVAC control module
Step
Action YesNo
1 Sunload sensor power supply circuit check
1) Disconnect sunload sensor connector.
2) Check for proper connection to sunload sensor at “PNK”
and “YEL/BLK” wire terminals.
3) If OK, measure voltage between “PNK” wire terminal of sunload sensor connector and vehicle body ground with
ignition switch turned ON.
Is voltage 4 – 6 V? Go to Step 5.
Go to Step 2.
2 Sunload sensor power supply circuit check
1) Disconnect connector from HVAC control module with
ignition switch turned OFF.
2) Check for proper connection to HVAC control module connector at “G52-2” and “G52-5” terminals.
3) If OK, measure resistance between “PNK” wire terminal of sunload sensor connector and “G52-2” terminal of
HVAC control module connector.
Is resistance below 5
Ω? Go to Step 3. “PNK” wire open or high
resistance circuit.
3 Sunload sensor power supply circuit check
1) Measure resistance between “PNK” wire terminal of
sunload sensor connector and vehicle body ground.
Is resistance infinity? Go to Step 4. “PNK” wire shorted to
ground circuit.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-69
Terminal Wire Color CircuitNormal
Vo l ta g e Condition
G52-1 WHT Output of 5 V power
source for air flow control
actuator position sensor
and temperature control
actuator position sensor 4 – 6 V Ignition switch turned ON
G52-2 PNK Output of 5 V power
source for sunload sensor 4 – 6 V Ignition switch turned ON
G52-3 ORN Ground for sensors Below 0.3 V Ignition switch turned ON
G52-4 WHT/BLK Evaporator temperature
sensor signal 3.45 – 3.65 V
Ignition switch turned ON, evaporator temperature 0
°
C (32 °F)
2.55 – 2.85 V Ignition switch turned ON, evaporator temperature
15
°C (59 ° F)
1.7 – 2.1 V Ignition switch turned ON, evaporator temperature
30
°C (86 ° F)
G52-5 YEL/BLK Sunload sensor signal
G52-6 PNK/BLK Inside air temperature
sensor signal About 2.0 V
Ignition switch turned ON, room temperature 25
°C
(77 °F)
About 2.8 V Ignition switch turned ON, room temperature 0
°C
(32 °F)
G52-7 — — — —
G52-8 RED/BLK Electric power source 10 – 14 V Ignition switch turned ON
G52-9 — — — —
G52-10 — — — —
G52-11 BLK/ORN Ground for HVAC control
module Below 0.3 V Ignition
switch turned ON
G52-12 — — — —
G52-13 YEL Temperature control
actuator position sensor
signal About 4.0 V
Ignition switch turned ON, temperature selector MAX
COOL position
About 2.0 V Ignition switch turned ON, temperature selector MAX
HOT position
G52-14 WHT/BLU Air flow control actuator
position sensor signal About 4.0 V
Ignition switch turned ON
, air flow selector VENT
position
About 1.6 V Ignition switch ON, air flow selector DEF position
G52-15 — — — —
G52-16 WHT/RED Electric power source for
back-up 10 – 14 V Full-time

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-73
HVAC Unit Removal and InstallationS7RS0B7226003
Refer to “HVAC Unit Removal and Installation”.
Temperature Control Actuator Removal and
Installation
S7RS0B7226004
Removal1) Disconnect negative (–) cable at battery.
2) Remove steering column hol e cover from instrument
panel.
3) Remove foot duct from HVAC unit.
4) Disconnect temperature control actuator connector (1).
5) Detach temperature control actuator rods (2) from linkage (3).
6) Remove temperature control actuator (4) from HVAC unit.
Installation
Reverse removal procedure.
Temperature Control Actuator InspectionS7RS0B7226005
1) Remove temperature control actuator from HVAC unit referring to “Temperature Control Actuator
Removal and Installation”.
2) Connect connector to temperature control actuator.
3) Set temperature selector of HVAC control module to MAX HOT position with ignition switch ON, and
make sure if the position of actuator lever is MAX
HOT position (A).
4) Turn ignition switch OFF, and then disconnect connector from temperature control actuator.
5) Measure resistance between terminal “3” and “5”.
Temperature control actuator resistance between
terminal “3” and “5” (MAX HOT position)
Approximately 2.5 k Ω at 25 °C (77 °F) 6) Connect connector to tem
perature control actuator.
7) Set temperature selector of HVAC control module to MAX COOL position with ignition switch ON, and
make sure if the position of actuator lever is MAX
COOL position (B).
8) Turn ignition switch OFF, and then disconnect connector from temperature control actuator.
9) Measure resistance between terminal “3” and “5”
Temperature control actuator resistance between
terminal “3” and “5” (MAX COOL position)
Approximately 4.8 k Ω at 25 °C (77 °F)
If check result is not satisfactory, replace the actuator
with new one.
2. Blower upper case 9. Blower motor controller 16. Evaporator 23. Temperature control actuator
3. Air intake control actuator 10. Blower lower case 17. O-ring24. Air flow control actuator
4. Air filter (if equipped) 11. Blower motor 18. Expansion valve25. Inside air temperature sensor
5. Heater unit upper case 12. Heater unit lower case 19. Evaporator temperature sensor 26. Aspirator hose
6. Foot duct 13. Heater core 20. Packing : Do not reuse.
7. Air flow control door assembly 14. Temperature control links 21. Filter cover
1
2
2
3
4
I5RS0A722020-02
I5RS0A722021-03
I5RS0A722022-03

Downloaded from www.Manualslib.com manuals search engine 7B-78 Air Conditioning System: Automatic Type
Inside Air Temperature Sensor Removal and
Installation
S7RS0B7226018
Removal1) Disconnect negative (–) cable at battery.
2) Remove steering column hole cover.
3) Remove connector and aspirator hose (1) from inside air temperature sensor (2).
4) Remove inside air temperature sensor from instrument panel while releas ing lock of both sides of
inside air temperature sensor.
Installation
Reverse removal procedure.
Inside Air Temperature Sensor InspectionS7RS0B7226019
Measure resistance between each connector terminal
with an ohmmeter.
If resistance is incorrect, replace inside air temperature
sensor with new one.
Inside air temperature sensor resistance
1.7 k Ω ± 0.085 k Ω at 25 °C (77 ° F)
Condenser Assembly On-Vehicle InspectionS7RS0B7226020
Refer to “Condenser Assembly On-Vehicle Inspection”.
Condenser Assembly Removal and InstallationS7RS0B7226021
Refer to “Condenser Assembly Removal and
Installation”.
Receiver/Dryer Removal and InstallationS7RS0B7226022
Refer to “Receiver/Dryer Removal and Installation”.
Evaporator InspectionS7RS0B7226023
Refer to “Evaporator Thermistor (Evaporator
Temperature Sensor) Inspection”.
Evaporator Temperature Sensor Removal and
Installation
S7RS0B7226024
Refer to “Evaporator Thermistor (Evaporator
Temperature Sensor) Removal and Installation”.
Evaporator Temperature Sensor InspectionS7RS0B7226025
Refer to “Evaporator Thermistor (Evaporator
Temperature Sensor) Inspection”.
Expansion Valve Removal and InstallationS7RS0B7226026
Refer to “Expansion Valve Removal and Installation”.
Expansion Valve InspectionS7RS0B7226027
Refer to “Expansion Valve Inspection”.
A/C Refrigerant Pressure Sensor and Its Circuit
Inspection
S7RS0B7226028
Refer to “A/C Refrigerant Pressure Sensor and Its Circuit
Inspection”.
A/C Refrigerant Pressure Sensor Removal and
Installation
S7RS0B7226029
Refer to “A/C Refrigerant Pressure Sensor Removal and
Installation”.
Compressor Relay InspectionS7RS0B7226030
Refer to “Compressor Relay Inspection”.
Compressor Drive Belt Inspection and
Adjustment
S7RS0B7226031
Refer to “Compressor Drive Belt Inspection and
Adjustment”.
12I5RS0A722028-01
Temperature
Resistance
1.7
0
32 25
77
F
5.5
I5RS0A722029-01

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-18
G: Instrument panel harness (RHD)
G: Instrument panel harness
J/B
9
10
G33
G32 G34 G35
(TO E37)
G36
(TO E38)
G31 G29
G23
G53
G22
G21
G28G59
G20G52G27
G54
G261112G03
(TO L33)G04
(TO L32)
G46
G01
G02
G42
G43
(TO L51) G10
G47
G11
G13G49
G14
G09G25 G24G15
G12G50
G48
G17
G16G51
G19
G18
G06
G05
G
G09
G37
A
BManual A/C
Auto A/C
AB
I7RS0B910906-01
No./Color Connective position No./ColorConnective position
G01/GRN Air intake control ac tuatorG26/YEL Driver inflator
G02/N Keyless receiver G27/N COMB switch
G03/N Floor harness (To L33) G28/GRY COMB meter
G04/YEL Floor harness (To L32) G29/GRN (IF
EQPD) Front fog light switch
G05/N Blower motor G31/N J/C
G06/N Blower motor resister G32/N J/B
G09/N Evaporator temperature sensor G33/N J/B
G10/BLK Passenger inflator G34/N J/B
G11/N Hazard switch G35/GRY Main harness (To E37)
G12/BLU Audio G36/N Main harness (To E38)
G13/N Navigation G37/BLU BCM
G14/GRN Multi information display G42/N (IF
EQPD) KLS ECM
G15/GRY J/C G43/GRY (IF
EQPD) Floor harness (To L51)
G16/N or BLU J/C G46/N Blower motor controller
G17/N J/C G47/BLK Diode
G18/GRN HVAC control switch G48/N Temperature control actuator
G19/BRN Blower speed selector G49/GRN Air flow control actuator
G20/BLK DLC G50/N Inside air temperature sensor
G21/N IG switch G51/GRY Auto A/C unit
G22/N Main switch (Key switch) G52/GRY Auto A/C unit
G23/BLK COMB switch G53/N Sunload sensor
G24/BLK ICM G54/N (IF
EQPD) Steering angle sensor
G25/N COMB switch G59/N (IF
EQPD) J/C