718 SUZUKI SWIFT 2007 2.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-57
DTC B1513: Temperature Control Actuator and/or Its Circuit MalfunctionS7RS0B7224015
Wiring Diagram
DTC Detecting Condition and Trouble Area8
Position sensor signal circuit check
1) Measure resistance between “WHT/BLU” wire terminal
of air flow control actuator connector and vehicle body
ground.
Is resistance infinity? Go to Step 9. “WHT/BLU” wire
shorted to ground
circuit.
9 Position sensor signal circuit check
1) Measure voltage between “WHT/BLU” wire terminal of
air flow control actuator connector and vehicle body
ground with ignition switch turned ON.
Is voltage 0 V? Go to Step 10. “WHT/BLU” wire
shorted to other circuit.
10 Position sensor ground circuit check
1) Connect HVAC control module connector with ignition
switch turned OFF.
2) Measure resistance between “ORN” wire terminal of air flow control actuator connector and vehicle body ground.
Is resistance below 5
Ω? Go to Step 12. Go to Step 11.
11 Position 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.
12 Air flow control actuator check
1) Check air flow control actuator referring to “Air Flow
Control Actuator Inspection”.
Is it in good condition? HVAC control module
faulty.
Air flow control actuator
faulty.
Step Action Yes No
7812910
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G52
789101920121112
65 431718 16 15 14 13
G51
M 12V
5V 5V
YEL
WHT
GRY/BLU
GRY/RED
2
1
ORN
G51-3
G51-4
G52-1
G52-13
G52-3
3
4
I5RS0A722013-01
1. HVAC control module 2. Temperature control actuator 3. To air flow control actuator 4. To other sensors
DTC Detecting Condition Trouble Area
Difference between target opening an d actual opening is higher than
specified value even though temperature control actuator has operated for 16
seconds. • Temperature control actuator circuit
• Temperature control linkage
• Temperature control actuator
• HVAC unit
• HVAC control module

Downloaded from www.Manualslib.com manuals search engine 7B-60 Air Conditioning System: Automatic Type
DTC B1514: Air Flow Control Actuator and/or Its Circuit MalfunctionS7RS0B7224016
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
• When DTC B1502, B1503 and B1513 are indicated together, it is possible that “ORN” wire circuit open.
• When DTC B1513 is indicated together, it is possible that “WHT” wire circuit open.

7812910
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G52
789101920121112
65 431718 16 15 14 13
G51
M 12V
5V 5V
WHT/BLU
WHT
BRN/WHT
BRN/YEL
2
1
ORN
G51-1
G51-2
G52-1
G52-14
G52-3
3
4
I5RS0A722014-01
1. HVAC control module 2. Air flow control actuator3. To temperature control actuator 4. To other sensors
DTC Detecting Condition Trouble Area
Difference between target opening and actual opening is higher than
specified value even though air flow control actuator has operated for 16
seconds. • Air flow control actuator circuit
• Air flow control linkage
• Air flow control actuator
• HVAC unit
• HVAC control module
Step
Action YesNo
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC.
Is there DTC B1512? Go to applicable DTC
diag. flow.
Go to Step 2.
2 Visual check
1) Check if there is any obstruction in operating range of
actuator linkage and if actuator linkage operates
smoothly.
Is it in good condition? Go to Step 3.
Obstruction in operating
range of actuator
linkage, actuator linkage
faulty and/or internal
fault of HVAC unit.
3 Wire harness check
1) Disconnect connector from air flow control actuator with
ignition switch turned OFF.
2) Check for proper connection to air flow control actuator
connector at “BRN/WHT” and “BRN/YEL” wire terminals.
3) If OK, measure voltage between “BRN/WHT” wire terminal of air flow control actuator connector and
vehicle body ground with ignition switch turned ON when
air flow selector is operation to DEF direction.
Is voltage 10 – 14 V? Go to Step 7.
Go to Step 4.

Downloaded from www.Manualslib.com manuals search engine 7B-62 Air Conditioning System: Automatic Type
DTC B1541: HVAC Control Module Back-Up Power Supply MalfunctionS7RS0B7224017
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting11
Position sensor circuit check
1) Check air flow control actuator position sensor circuit
referring to Step 1 to Step 5 and Step 10 to Step 11 of
“DTC B1512: Air flow Control Actuator (Position Sensor)
and/or Its Circuit Malfunction”.
Is it in good condition? Go to Step 12. Repair circuit.
12 Air flow control actuator check
1) Check air flow control actuator referring to “Air Flow
Control Actuator Inspection”.
Is it in good condition? HVAC control module
faulty.
Air flow control actuator
faulty.
Step Action Yes No
WHT/RED
2 17812910
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G52
789101920121112
65 431718 16 15 14 13
G51
3
G52-16
I5RS0A722015-01
1. HVAC control module
2. Junction block assembly 3. Circuit fuse
DTC Detecting Condition Trouble Area
Back-up power supply voltage is lo wer than specified value continuously. • Battery voltage supply circuit
• HVAC control module
StepAction YesNo
1 DTC check
1) Turn ON ignition switch for 20 sec. or more.
2) Ignition switch turned OF F and connect scan tool to
DLC.
3) Turn ON ignition switch and check DTC.
Is there DTC B1541? Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2 Battery voltage 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 “G52-16” terminal.
3) If OK, measure voltage between “G52-16” terminal of HVAC control module connector and vehicle body
ground.
Is voltage 10 – 14 V? HVAC control module
faulty.
Circuit fuse blown and/
or “WHT/RED” wire
circuit open or short.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-63
DTC B1546: A/C Refrigerant Pressure MalfunctionS7RS0B7224018
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1551: Serial Communication Circuit MalfunctionS7RS0B7224019
Wiring DiagramDTC detecting condition Trouble area
A/C refrigerant pressure sensor signal voltage is lower t han specified value
even though outside air temperature is higher than specified value for
specified time continuously. • Insufficient of refrigerant
• A/C refrigerant pressure sensor
• Outside air temperature sensor
• HVAC control module
Step
Action YesNo
1 A/C refrigerant pressure and outside air temperature
check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Check “Refrigerant Pressure” and “Outside Air Temp” varies displayed on scan tool.
Is displayed each va ries described varies in “Scan Tool
Data”? Go to Step 2.
Check the amount of
refrigerant and system
for leaks.
2 A/C system performance check
1) Check A/C system performance referring to “A/C System
Performance Inspection”.
Is check result satisfactory? Go to Step 3.
Repair or replace
defective part.
3 A/C refrigerant pressure sensor check
1) Check A/C refrigerant pressure sensor referring to “A/C
Refrigerant Pressure Sensor and Its Circuit Inspection”.
Is check result satisfactory? Go to Step 4.
A/C refrigerant pressure
sensor faulty.
4 Outside air temperature sensor check
1) Check outside air temperature sensor referring to
“Information Display (Clock) Removal and Installation in
Section 9C”.
Is check result satisfactory? HVAC control module
faulty.
Outside air temperature
sensor faulty.
YEL17812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
G51-7
12V
2
3
G37-11
I5RS0A722016-01
1. HVAC control module 2. BCM3. Information display

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-67
Inspection of HVAC Control Module and Its CircuitS7RS0B7224026
HVAC control module and its circuits can be checked at HVAC control module wiring couplers by measuring voltage.
CAUTION!
HVAC control module can not be checked by itself. It is strictly prohibited to connect voltmeter to
HVAC control module with couplers disconnected from it.

Voltage Check
1) Remove HVAC control module referring to “HVAC Control Module Removal and Installation”.
2) Check voltage at each terminal.
NOTE
As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when ignition
switch is ON.

7812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
1
2
I5RS0A722017-02
1. HVAC control module2. HVAC control module connector (viewed from harness side)
Terminal Wire Color CircuitNormal
Vo l ta g e Condition
G51-1 BRN/WHT Air flow control actuator
(DEF) 10 – 14 V
Ignition switch turned ON, ai
r flow control actuator is
working in operation fr om VENT to DEF position
0 – 1 V Ignition switch turned ON, except the above condition
G51-2 BRN/YEL Air flow control actuator
(FACE) 10 – 14 V
Ignition switch turned ON, ai
r flow control actuator is
working in operation fr om DEF to VENT position
0 – 1 V Ignition switch turned ON, except the above condition
G51-3 GRY/BLU Temperature control
actuator (COOL) 10 – 14 VIgnition switch turned ON, temperature control
actuator is working in ope
ration from HOT to COOL
position
0 – 1 V Ignition switch turned ON, except the above condition
G51-4 GRY/RED Temperature control
actuator (HOT) 10 – 14 VIgnition switch turned ON, temperature control
actuator is working in operation from COOL to HOT
position
0 – 1 V Ignition switch turned ON, except the above condition
G51-5 PPL/WHT Serial communication line
of data link connector 10 – 14 V Ignition switch turned ON
G51-6 — — — —
G51-7 YEL Serial communication line
of BCM Refer to “Inspection of BCM a
nd its Circuits in Section 10B”

Downloaded from www.Manualslib.com manuals search engine 8B-8 Air Bag System:
Terminal arrangement of SDM (viewed from harness side)
Connector “L29” (SDM connector)
1 2345678910
11
1213141516171819202122232425
272829303132333435363738394041424344454647484950
1
26
51
I7RS0A820003-02
1. SDM Connector “L29”
Terminal Terminal
symbol Circuit Terminal Terminal
symbol Circuit
L29-1 — — L29-27 IG Ignition switch (power source)
L29-2 WL “AIR BAG” warning right L29-28 E1 Ground
L29-3 D– Driver air bag (–) L29-29 — —
L29-4 D+ Driver air bag (+) L29-30 — —
L29-5 P+ Passenger air bag (+) L29-31 — —
L29-6 P– Passenger air bag (–) L29-32 ST DLC
L29-7 DP– Driver seat belt pretensioner (–) L29-33 — —
L29-8 DP+ Driver seat belt pretensioner (+) L29-34 — —
L29-9 PP+ Passenger seat belt pretensioner (+) L29-35 — —
L29-10 PP– Passenger seat belt pretensioner (–) L29-36 — — L29-11 DS– Driver side-air bag (–) (If equipped ) L29-37 ADS Air bag deployed signal for BCM
L29-12 DS+ Driver side-air bag (+) (If equipped) L29-38 — —
L29-13 PS+ Passenger side-air bag (+) (If
equipped) L29-39 — —
L29-14 PS– Passenger side-air bag (–) (If
equipped) L29-40 — —
L29-15 — — L29-41 — —
L29-16 — — L29-42 — —
L29-17 — — L29-43 — —
L29-18 — — L29-44 SP– Passenger side-sensor (–)
L29-19 DC– Driver side curtain-air bag (–) L29-45 SP+ Passenger side-sensor (+)
L29-20 DC+ Driver side curtain-air bag (+) L29-46 SD+ Driver side-sensor (+)
L29-21 PC+ Passenger side curtain-air bag (+) L29-47 SD– Driver side-sensor (–)
L29-22 PC– Passenger side curtain-air bag (–) L29-48 — —
L29-23 — — L29-49 — —
L29-24 — — L29-50 FD+ Forward-sensor (+)
L29-25 — — L29-51 FD– Forward-sensor (–)
L29-26 — — — — —

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-8
How to Read Power Supply DiagramS7RS0B9101007
Refer to “Power Supply Diagram”.
Refer to “System Circuit Diagram”.
How to Read System Circuit DiagramS7RS0B9101008
The circuit diagram is designed so the current flows from the top of the diagram (power source) to the bottom of the
diagram (ground) as if giving an image of water flow.
[A]: Fuse No.
[B]: Circuit jumping page / direction
NOTE
This means “Jump to the page directed with the arrow(s) by their number.
(For example:” Two arrows directing left” means” Jump to two pages before”.)
You will find the same symbol with the arrows directing opposite in the referenced page. The circuit
continues between the symbols.

[C]: Circuit jumping point / direction
NOTE
The circuit continues to the same symbol with opposite direction within the page.
You will find the other symbol in the direction of the arrow.

Connection to the system
indicated.
"POWER SUPPLY DIAGRAM"
-+
1
Battery
80A
215A315A415A525A67850A 30A2930A3215A
960A
60A
BLK
YEL/BLKPNK/BLKLT GRNYEL/GRNYEL/BLUBLK/WHTWHT/BLKWHT/GRNREDGRNWHT
WHT/BLUWHT/REDWHT/BLUWHT/YELWHT/GRN
WHT/GRNWHT/GRN
BLU
BLU/REDRED
YELBLU/RED
Individual
circuit
fuse box
Main fuse box
Supplementary fuse box
11
11
243
121314151617181920212932
1213141516171819202115A 15A 15A 20A 20A 15A 15A 15A 15A 15A 15A
E44
321
B011E45 1 E4021
FuseRED/YEL
YEL
WHT/GRN
15A
15A
1317
"SYSTEM CIRCUIT DIAGRAM"
Fuse number
1
2
RY
I5RW0A910993-02

Downloaded from www.Manualslib.com manuals search engine 9A-23 Wiring Systems:
J: Rear door wire
K: Roof wire
FloorS7RS0B910A005
L: Floor harness, ACC socket wire, License plate wire / R: Fuel pum p wire (NORMAL model, RHD)
No./Color
Connective position No./ColorConnective position
J16/N Floor harness (To L13) J21/N Floor harness (To L37)
J17/N Rear speaker (R) J22/N Rear speaker (L)
J18/BLK Rear power window motor (R) J23/BLK Rear power window motor (L)
J19/N Rear power window sub switch (R) J24/N Rear power window sub switch (L)
J20/N Rear door lock motor (R) J25/N Rear door lock motor (L)
No./ColorConnective position No./Color Connective position
K01/N J/B K02/N Interior light
21
L48
14
L43
L42
(TO O01)
L40
L41
L33
(TO G03)
L32
(TO G04)
L46
ACC socket wire
L02
(TO E45)
L03
(TO E44)
L01
L04
L05
L06
L07
(TO J01)
L74
1516
L23
(A/T)1718
L31
(TO J09)
L24
13
L20L19
R02L65L66 L15
R01
L12
L10
L11
L13
(TO J16)
L14
R03 L26
L25
L27
L30L29
L17
L18 L51
(TO G43)
L36 L35
L37
(TO J21)
L34
L38
L16 L28
L44
L
L39
J/B
R
L47
L59
L21
L22
License plate
wire
IF EQPDI7RS0B910907-01

Downloaded from www.Manualslib.com manuals search engine 9A-27 Wiring Systems:
L: Floor harness, ACC socket wire / M: Rear bumper wire / R: Fuel pump wire (SPORT model, RHD)
ACC socket wire
L
M
R
M05
M03
M02
14
L43
L42
(TO O01)
L40
L41
L33
(TO G03)
L32
(TO G04)
L46
L02
(TO E45)
L03
(TO E44)
L01
L04
L05
L06
L07
(TO J01)
L74
1516
L23
(A/T)1718
L31
(TO J09)
L24
13
L20L19
R02 L15
R01
L12
L10
L11
L13
(TO J16)
L14
R03 L26
L25
L69
L27
L30 L29
L17
L18
L36M04 L35
L37
(TO J21)
L34
L38
L16 L28
L44
L39
J/B
L70
M01
21
IF EQPDI7RS0B910909-01

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-34
Individual Circuit Fuse Box No. 1S7RS0B910D005
456789101112
131415161718192021
USE THE DESINGNATED FUSES
AND RELAYS ONLY.
Relay #1
"A-4"
E28
Relay #2
"A-4"
E29
Relay #3
"A-4"
E30
"A-5"
E35
RelayRelay
"D-3"
E34
Compressor
Relay"E-1"
E36
A/T relay
"A-6"
E33
Main relay
"A-5"
E32
Starting motor relay
"A-1"
E31
Throttle actuatorcontrol relay
"A-5"
E56
IF EQPDM16A engineI7RS0B910939-01
No. Fuse Description on the cover Protected circuit
30 A HTR FAN Blower motor relay
15 A FIMain relay
10 A A/C CPRSR A/C compressor relay
15 A AT ETM A/T relay
15 A STOP LAMP Brake light switch
30 A ABS MOT ABS control module
ESP
® control module
30 A ST MOT Starting motor relay
50 A MTA BLANK
50 A EPS Power steering control module
30 A IG ACC IG switch
30 A RDTR FAN Radiator fan relay #1
Radiator fan relay #2
BLANK BLANK BLANK
30 A ABS SOL ABS control module
ESP
® control module
BLANK BLANK BLANK 15 A THR MOT Throttle actuator control relay
15 A FR FOG Front fog light relay
15 A H/L L Headlight (L)
15 A H/L R Headlight (R)