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-74 Air Conditioning System: Automatic Type
Air Flow Control Actuator Removal and
Installation
S7RS0B7226006
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 air flow contro l actuator connector (2).
5) Remove air flow control actuator (1) from HVAC unit, and then detach air flow actuator rod from linkage.
Installation
Reverse removal procedure.
Air Flow Control Actuator InspectionS7RS0B7226007
1) Remove air flow control actuator from HVAC unit referring to “Air Flow C ontrol Actuator Removal and
Installation”.
2) Connect actuator connector to the actuator.
3) Set air flow selector of HVAC control module to DEF position with ignition switch ON, and make sure if the
position of actuator lever is DEF position (8).
4) Turn ignition switch OFF, and then disconnect connector from air flow control actuator.
5) Measure resistance between terminal “3” and “5”
Air flow control actuator resistance between
terminal “3” and “5” (DEF position)
Approximately 4.8 k Ω at 25 °C (77 °F)
I5RS0A722023-03
[A]: LH steering vehicle [B]: RH steering vehicle
8
[A]
[B]
8
7654 321
I5RS0C722004-01
Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-75
6) Connect connector to air flow control actuator.
7) Set air flow selector of HVAC control module to VENT position with ignition switch ON, and make
sure if the position of act uator lever is VENT position
(8).
8) Turn ignition switch OFF, and then disconnect connector from air flow control actuator.
9) Measure resistance between terminal “3” and “5”.
Air flow control actuator resistance between
terminal “3” and “5” (VENT position)
Approximately 2.0 k Ω at 25 °C (77 °F)
If check result is not satisfactory, replace the actuator
with new one.
Air Intake Control Actuator Removal and
Installation
S7RS0B7226008
Refer to “Air Intake Control Actuator Removal and
Installation in Section 7A”.
Air Intake Control Actuator InspectionS7RS0B7226009
Check air intake contro l actuator as follows:
1) Using service wire, connect battery positive terminal
to terminal “7” and battery negative terminal to
terminal “1”. And, check if air intake selector link
operates smoothly and it stops at “REC” position (A).
2) Using service wire, connect battery positive terminal
to terminal “7” and battery negative terminal to
terminal “5”. And, check if air intake selector link
operates smoothly and it stops at “MIX” position (B).
3) For auto A/C model, using service wire, connect battery positive terminal to terminal “7” and battery
negative terminal to “3” terminal. And, check air
intake selector link operates smoothly and it stops at
“FRE” position (C).
If malfunction is found, replace air intake control
actuator.
[A]: LH steering vehicl e [B]: RH steering vehicle
[A]
[B]
8
8765 4 3 21
I5RS0C722005-02
A
C
B“a”
“a”“a”
-
+
A
C
B “1” “3” “5” “7”
“1”
“3”
“5”
“7”
120
°
120° 120
°
I7RS0A722002-01
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-7
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS7RS0B8202001
[A]
[B]“E13” “E44”, “G04” “G35” and "L03" \
"L41"
1
2 GRN/RED
GRN GRN/RED
GRN
BLU/RED YEL/RED BLU/RED
YEL/RED
GRN/ORN GRN/YEL
RED
13
PPL/WHT
9 7
8
5
6
10 “L10”
“L11”
“L04”
“G35” “G34”
“G33”
“G28”
“G32”
“L35”
L29-2
L29-27
L29-32 L29-5
L29-6 L29-4
L29-3
L29-8
L29-7
IG
ST
YEL L29-37ADS
WHT/RED
LT GRN/BLK L29-46
L29-47 SD+
SD-
11
WHT/GRN LT GRN
BLK L29-45
L29-44 WL
L29-28
E1 DP-
DP+ P- P+ D- D+
“G10”
“G04”“L29”
18
BLU/ORN
BLU/YEL “L36”
L29-9
L29-10
PP-
PP+
19 17
GRY/RED
GRY
L29-12
L29-11
DS- DS+ “L25”
20
BRN/WHT
BRN
L29-13
L29-14
PS- PS+ “L30”
21
YEL/GRN
YEL/BLU
L29-20
L29-19
DC- DC+ “L18”
22
BLK/YEL
BRN/YEL
L29-21
L29-22
PC- PC+ “L41”
2316
15
14
“L29”
SP+
SP-
“G26”“L32”
“L03”“E44”“E13”
12
ORN
PNK/BLK
GRY/RED
GRY L29-50
L29-51 FD+
FD-
3 4
YEL/BLK
YEL/BLK
GRN RED/BLK
I7RS0A820002-03
[A]: Shorting bar
8. BCM 17. Passenger air bag (inflator) module
[B]: Connector 9. To data link connector (DLC)18. Driver seat belt pretensioner
1. To battery 10. Driver side-sensor (if equipped)19. Passenger seat belt pretensioner
2. Ignition switch 11. Passenger side-sensor (if equipped) 20. Driver side-air bag (inflator) module (if equipped)
3. “AIR BAG” warning light 12. Forward-sensor 21. Passenger side-air bag (inflator) module (if equipped)
4. Light driver 13. Ground for air bag system 22. Driver side curtain-air bag (inflator) module (if equipped)
5. “METER” fuse 14. SDM 23. Passenger side curtain-air bag (inflator) module (if equipped)
6. “A/BAG” fuse 15. Contact coil
7. Junction block assembly 16. Driver air bag (inflator) module
Downloaded from www.Manualslib.com manuals search engine 8B-10 Air Bag System:
Diagnostic Information and Procedures
Air Bag Diagnostic System CheckS7RS0B8204001
WARNING!
To avoid deployment when troubleshooting
the air bag system, do not use electrical test
equipment such as a battery powered or AC
powered voltmeter, ohmmeter, etc., or any
type of electrical equipment other than that
specified in this manual. Do not use a non-
powered probe type tester.
Instructions in this manual must be followed
carefully, otherwise personal injury may
result.
CAUTION!
The order in which DTCs are diagnosed is
very important. Failure to diagnose the DTCs
in the order specified may result in extended
diagnostic time, incorrect diagnosis and
incorrect parts replacement.
The diagnostic procedures used are designed to find
and repair air bag system malfunctions.
To get the best results, it is important to use the
diagnostic flow and follow the sequence in the following.1) Perform the “Air Bag Diagnostic System Check Flow”.
(The “Air Bag Diagnostic System Check Flow” must
be the starting point of any air bag system diagnosis.
The “Air Bag Diagnostic System Check Flow” checks
for proper “AIR BAG” warning right operation
through “AIR BAG” warning right and whether air
bag DTCs exist.)
2) Refer to the proper diagnost ic flow as directed by the
“Air Bag Diagnostic System Check Flow”.
(The “Air Bag Diagnostic System Check Flow” will
lead you to the correct flow to diagnose any air bag
system malfunctions. Bypassing these procedures
may result in extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.)
3) Repeat the “Air Bag Diagnostic System Check Flow” after any repair or diagnostic procedures have been
performed.
(Performing the “Air Bag Diagnostic System Check
Flow” after all repair or diagnostic procedures will
ensure that the repair has been made correctly and
that no other malfunctions exist.)
Air Bag Diagnostic System Check FlowS7RS0B8204002
Flow test description
Step 1: Check that “AIR BAG” warning right lights.
Step 2: Check that “AIR BAG” warning right lights.
Step 3: Check that “AIR BAG” warning right flas hes 6 times after ignition switch is turned ON.
Step 4: Check that history codes are in SDM memory.
Step 5: Check that current code is in SDM memory.
6. “A/BAG” fuse in junction block assembly (including BCM) 13. Side curtain-air bag (inflator) module (if equipped)
7. Air bag harness in floor harness 14. Air bag harness in instrument panel harness
Step Action YesNo
1 1) Make sure that battery voltage is about 11 V or higher.
2) Note “AIR BAG” warning right as ignition switch is turned
ON.
Does “AIR BAG” warning ri ght come ON when ignition
switch is turned ON? Go to Step 2.
Proceed to ““AIR BAG”
Warning Right Does Not
Come ON”.
2 Does “AIR BAG” warning right come ON steady? Proceed to ““AIR BAG”
Warning Right Comes
ON Steady”.Go to Step 3.
3 Does “AIR BAG” warning right turn OFF, after flashing 6
times? “AIR BAG” warning right
circuit is in good
condition. Go to Step 4.“AIR BAG” warning right
circuit is in good
condition. Go to Step 5.
Downloaded from www.Manualslib.com manuals search engine 8B-22 Air Bag System:
DTC B1021: Front Air Bag Module DeployedS7RS0B8204014
DTC Will Set when
The SDM detects a frontal crash of sufficient force to warrant activation of the air bag system. (SDM outputs a
deployment command.)
Flow Test Description
Step 1: Check that DTC B1021 has been set although air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTCs of BCM referring to “DTC Clearance in Section 10B”
DTC B1024 / B1025: Side-Air Bag (Driver / Passenger) DeployedS7RS0B8204015
DTC Will Set when
The SDM detects a sideward crash (driver or passenger side) of sufficient force to warrant activation of the side-air
bag system (driver or pa ssenger). (SDM outputs a deployment command.)
Flow Test Description
Step 1: Check that DTC B1024 or B1025 has been set although side-air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.
Step Action YesNo
1 1) Turn ignition switch OFF.
Has air bag deployed? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of impact.
Are there signs of impact? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Substitute a known-
good SDM and recheck.
Downloaded from www.Manualslib.com manuals search engine 8B-24 Air Bag System:
DTC B1027: Reusable Number ExceededS7RS0B8204017
DTC Will Set when
The SDM has not been replaced though the side-air bag developed several times in the past.
NOTE
DTC B1027 can never be cleared once it has been set.
DTC Trouble shooting1) Turn ignition switch OFF.
2) Replace SDM.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1031: Driver Air Bag Initiator Circuit Resistance HighS7RS0B8204018
Wiring Diagram
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-4
D+
L29-3
D-GRN
GRN/RED
GRN
GRN/RED 6
57
“G26”
“L32” “G04”
[A]
I7RS0A820010-07
[A]: Shorting bar 3. “A/BAG” fuse 6. Contact coil assembly
1. From main fuse 4. Junction block assembly 7. Driver air bag (inflator) module
2. Ignition switch 5. SDM 8. Ground for air bag system