2006 SUZUKI SX4 section 9

Downloaded from www.Manualslib.com manuals search engine 1A-130 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Wire circuit check
1) Disconnect radiator cooling fan relay (1) from individual
circuit fuse box No.1 with ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground to “BLK/RED” wire terminal.
Is voltage 10 – 14 V?Go to Step 3. Open wire in “BLK/RED”
wire is open circuit.
3Wire circuit check
1) Connect radiator cooling fan relay to individual circuit
fuse box No.1 with ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage between
vehicle body ground and “E01-46” terminal of ECM
connector when engine coolant temp. is below 100 °C
(212 °F).
Is voltage 10 – 14 V?Go to Step 7. Go to Step 4.
4Wire circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Disconnect radiator cooling fan relay from individual
circuit fuse box No.1.
3) Measure resistance between “E01-46” terminal of ECM
connector and vehicle ground.
Is resistance infinity?Go to Step 5. “LT GRN” wire is
shorted to ground
circuit.
5Wire circuit check
1) Turn ON ignition switch.
2) Measure voltage between “E01-46” terminal of ECM
connector and vehicle body ground.
Is voltage 0 V?Go to Step 7. “LT GRN” wire is
shorted to other circuit.
6Radiator cooling fan relay check
1) Check radiator cooling fan relay referring to “Radiator
Cooling Fan Relay Inspection in Section 1F”.
Is check result satisfactory?“LT GRN” wire is open
circuit.Replace relay.
1
I5RW0A110036-02

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DTC P0481: Cooling Fan 2 (A/C Condenser Fan) Control CircuitS6RW0D1104049
Wiring Diagram
Circuit Description
A/C condenser cooling fan motor is turned ON and OFF by its relay which ECM controls. A/C condenser cooling fan
motor is turned ON when ECM outputs A/C ON signal or when engine coolant temp. is 110 °C, 230 °F or more.
DTC Detecting Condition and Trouble Area7Radiator cooling fan control check
1) Run engine until ECT is over 100 °C, 212 °F.
2) Measure voltage between vehicle body ground and
“E01-46” terminal of ECM connector.
Is voltage lower than 1.5 V?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”. If OK, substitute a
known-good ECM and
recheck.Faulty ECM.
Substitute a known-
good ECM and recheck. Step Action Yes No
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK/WHT
WHT
1
GRN
27
E01-29
10
89
REDBLK
3
5BLK/WHT
RED/BLKE01-58
WHT
4E01-47 GRY
BLU/YEL
6
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKE01-31BLK
I6RW0D110042-01
1. Individual circuit fuse box No.1 5. A/C condenser cooling fan motor 9. “A/C” fuse
2. Ignition switch 6. A/C compressor 10. “IG COIL” fuse
3. A/C condenser cooling fan relay 7. ECM
4. A/C compressor relay 8. “FI” fuse
DTC detecting condition Trouble area
Monitor signal of A/C condenser cooling fan relay is different
from command signal.
(1 driving cycle detection logic but MIL does not light up)• A/C condenser cooling fan relay circuit malfunction
• A/C condenser cooling fan relay malfunction
• ECM malfunction

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3Check wire circuit
1) Disconnect A/C compressor control relay (1) from
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “BLK/WHT” wire terminal of A/C
condenser fan control relay connector.
Is voltage 10 – 14 V?Faulty A/C compressor
control relay.Go to Step 4.
4Check wire circuit
1) Remove “A/C” fuse (10 A) from individual circuit fuse box
No.1 with ignition switch turned OFF.
2) Measure resistance between “BLK/WHT” wire terminal
of “A/C” fuse connector and vehicle body ground.
Is resistance infinity?Open wire in “BLK/
WHT” circuit. If OK, go
to Step 5.“BLK/WHT” wire
shorted to ground
circuit.
5Check wire circuit
1) Connect A/C condenser cooling fan control relay to
individual circuit fuse box No.1 box with ignition switch
turned OFF.
2) Disconnect connectors from ECM.
3) Turn ON ignition switch, measure voltage between
vehicle body ground and “E01-58” wire terminal of ECM
connector.
Is voltage 10 – 14 V?Go to Step 9. Go to Step 6.
6Check wire circuit
1) Disconnect A/C condenser cooling fan control relay from
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Measure resistance between “E01-58” wire terminal of
ECM connector and vehicle body ground.
Is resistance infinity?Go to Step 7. “RED/BLK” wire shorted
to ground circuit.
7Check wire circuit
1) Turn ON ignition switch.
2) Check voltage between “E01-58” wire terminal of ECM
connector and vehicle body ground.
Is voltage 0 V?Go to Step 8. “RED/BLK” wire shorted
to power supply circuit.
8Check A/C condenser cooling fan control relay
1) Check A/C condenser cooling fan control relay referring
to “A/C System Relay Inspection in Section 7B”.
Is result in good condition?Open wire in “RED/BLK”
circuit.Replace relay. Step Action Yes No
1
I5RW0A110039-02

Downloaded from www.Manualslib.com manuals search engine 1A-134 Engine General Information and Diagnosis:
DTC P0500: Vehicle Speed Sensor (VSS) MalfunctionS6RW0D1104050
Wiring Diagram
DTC Detecting Condition and Trouble Area9Check A/C condenser cooling fan control
1) Ignition switch turned OFF.
2) Remove ECM from vehicle body referring to “Engine
Control Module (ECM) Removal and Installation in
Section 1C” and connect connectors to ECM.
3) Run engine and turn ON A/C and blower fan switch.
4) Measure voltage between vehicle body ground and
“E01-58” wire terminal of ECM connector.
Is voltage lower 1.5 V?Intermittent trouble.
Check for intermittent
refer to “Intermittent and
Poor Connection
Inspection in Section
00”. If OK, substitute a
known-good ECM and
recheck.Faulty ECM. Step Action Yes No
[B]
REDWHTC01-13C01-12REDWHT
PPL
5IG112 V
BLK/WHT
BLK/ORN
4
6 [A]
E01-3E01-18REDWHTREDWHT
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK
RED
WHT WHT
12V
12V
1
23
4
WHT/BLK
WHT BLKRED/BLK
I6RW0D110043-02
[A]: For M/T model 2. Front right side wheel speed sensor (VSS 2) 5. Output shaft speed sensor
[B]: For A/T model 3. ABS control module 6. TCM
1. Front left side wheel speed sensor (VSS 1) 4. ECM
DTC detecting condition Trouble area
Vehicle speed signal is not input while fuel is cut at deceleration
for 4 seconds at 3600 rpm or less.
(2 driving cycle detection logic)• Wheel speed sensor (VSS) (for M/T model)
• Wheel speed sensor circuit (for M/T model)
• ABS control module assembly (for M/T model)
• Output shaft speed sensor (for A/T model)
• Output shaft speed sensor circuit (for A/T
model)
• TCM malfunction (for A/T model)
• ECM malfunction

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DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out by 2 persons, a driver and a tester.

1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Warm up engine to normal operating temperature.
4) Drive vehicle at 4000 rpm (engine speed) with 3rd gear or “3” range.
5) Release accelerator pedal and with engine brake applied, keep vehicle coasting for 6 sec. or more (fuel cut
condition for 5 sec. or more) and stop vehicle.
6) Check pending DTC and DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Vehicle speed signal check
Is vehicle speed displayed on scan tool in Step 4) and 5) of
“DTC Confirmation Procedure”?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.For M/T model, go to
Ste p 3.
For A/T model, go to
Ste p 4.
3DTC check in ABS control module assembly
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ABS control module assembly for DTC.
Is there any DTC(s) in ABS control module assembly?Go to applicable DTC
diag. flow.Substitute a known-
good ECM and recheck.
4DTC check in TCM
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check TCM for DTC.
Is DTC P0722 detected?Go to “DTC P0722:
Output Speed Sensor
(VSS) Circuit No Signal
in Section 5A”.Substitute a known-
good ECM and recheck.

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2A/C refrigerant pressure sensor power supply circuit
check
1) Disconnect connector from A/C refrigerant pressure
sensor with ignition switch turned OFF.
2) Check for proper connection of A/C refrigerant pressure
sensor at “GRY/RED”, “RED/BLU” and “ORN” wire
terminals.
3) Turn ON ignition switch, measure voltage between
engine ground and “GRY/RED” wire terminal of A/C
refrigerant pressure sensor connector.
Is voltage 4 – 6 V?Go to Step 5. Go to Step 3.
3A/C refrigerant pressure sensor power supply circuit
check
1) Disconnect connectors from MAP sensor with ignition
switch turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “GRY/RED” wire terminal of A/C
refrigerant pressure sensor connector.
Is voltage 4 – 6 V?Faulty MAP sensor. Go to Step 4.
4A/C refrigerant pressure sensor power supply circuit
check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between engine ground and “C01-
14” terminal of ECM connector.
Is resistance infinity?Go to Step 6. “GRY/RED” wire is
shorted to ground
circuit.
5A/C refrigerant pressure sensor signal circuit check
1) Connect connectors to ECM.
2) Turn ON ignition switch, measure voltage between
engine ground and “RED/BLU” wire terminal of A/C
refrigerant pressure sensor connector.
Is voltage 4 – 6 V?Go to Step 7. Go to Step 6.
6A/C refrigerant pressure sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between engine ground and “E01-
55” terminal of ECM connector.
Is resistance infinity?Go to Step 7. “RED/BLU” wire is
shorted to ground
circuit.
7A/C refrigerant pressure sensor check
1) Check A/C refrigerant pressure sensor referring to “A/C
Refrigerant Pressure Sensor and Its Circuit Inspection in
Section 7B” or “A/C Refrigerant Pressure Sensor and Its
Circuit Inspection in Section 7B”.
Is it in good condition?Substitute a known-
good ECM and recheck.Faulty A/C refrigerant
pressure sensor. Step Action Yes No

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DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control Module
Programming Error / Control Module Performance
S6RW0D1104053
System Description
Internal control module is installed in ECM.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3) Start engine and run it at idle if possible.
4) Check DTC and pending DTC by using scan tool.5A/C refrigerant pressure sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “RED/BLU” wire terminal of
A/C refrigerant pressure sensor connector and “E01-55”
terminal of ECM connector.
Is resistance below 2
Ω?“RED/BLU” wire is
shorted to power supply
circuit.“RED/BLU” wire is open
or high resistance
circuit.
6A/C refrigerant pressure sensor ground circuit check
1) Turn OFF ignition switch, measure resistance between
engine ground and “ORN” wire terminal of A/C
refrigerant pressure sensor connector.
Is resistance below 5
Ω?Go to Step 8. Go to Step 7.
7ECM ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between engine ground and “E01-
54” terminal of ECM connector.
Is resistance below 5
Ω?“ORN” wire is open or
high resistance circuit.ECM grounds “C01-58”,
“C01-15”, “C01-30” and/
or “E01-31” is open or
high resistance circuit.
8A/C refrigerant pressure sensor check
1) Check A/C refrigerant pressure sensor referring to “A/C
Refrigerant Pressure Sensor and Its Circuit Inspection in
Section 7B” or “A/C Refrigerant Pressure Sensor and Its
Circuit Inspection in Section 7B”.
Is it good condition?Substitute a known-
good ECM and recheck.Faulty A/C refrigerant
pressure sensor. Step Action Yes No
DTC detecting condition Trouble area
DTC P0601:
Data write error or check sum error
(1 driving cycle detection logic)
DTC P0602:
Data programming error
(1 driving cycle detection logic but MIL does not light up)
DTC P0607:
Data programming error
(1 driving cycle detection logic)ECM

Downloaded from www.Manualslib.com manuals search engine 1A-140 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

DTC P0616: Starter Relay Circuit LowS6RW0D1104054
Wiring DiagramStep Action Yes No
1DTC recheck
1) Clear DTC referring to “DTC Clearance”.
2) Turn OFF ignition switch.
3) Turn ON ignition switch and check DTC.
Is DTC P0601 or P0607 still indicated?Go to Step 2. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2ECM reprogramming check
Was reprogramming of ECM executed?Execute reprogramming
of ECM correctly once
again.Go to step 3.
3ECM power and ground circuit check
1) Check that ECM power supply circuit and ECM ground
circuit is in good condition referring to “ECM Power and
Ground Circuit Check”.
Are check results OK?Substitute a known-
good ECM and recheck.Repair ECM power or
ground circuit.
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
3
461E01-29
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
5
RED/WHTGRN/WHT
GRN
RED
E01-30
C01-48
BLK/WHT
YEL/GRN
YEL/GRN
WHT
2 7
8 9WHT
WHT/BLU
BLKE01-31
I6RW0D110045-01
1. ECM 4. Main fuse box 7. “ST SIG” fuse
2. Starter motor 5. Starting motor control relay 8. “ST MOT” fuse
3. Ignition switch 6. “IG COIL” fuse 9. “IGN” fuse