2006 SUZUKI SX4 engine mount

Downloaded from www.Manualslib.com manuals search engine 1A-154 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”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP sensor (main) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 1 Volt”
displayed on scan tool.
Is displayed voltage 4.76 V or more?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4ECM voltage check
1) Disconnect connector from APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly at
“BRN”, “GRN” and “BLU” wire terminals.
3) If OK, measure voltage between “BRN” wire terminal of
APP sensor assembly connector and vehicle body
ground with ignition switch turned ON.
Is voltage 4 – 6 V?Go to Step 6. Go to Step 5.
5Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E01-
35” terminal.
3) If OK, measure voltage between “E01-35” terminal of
ECM connector and engine ground with ignition switch
turned ON.
Is voltage 0 V?Substitute a known-
good ECM and recheck.“BRN” wire is shorted to
power circuit.
"GRN" "BLU" "BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-155
DTC P2127: Pedal Position Sensor (Sub) Circuit Low InputS6RW0D1104064
Wiring Diagram
Refer to “DTC P2122: Pedal Position Sensor (Main) Circuit Low Input”.
DTC Detecting Condition and Trouble Area6Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E01-
35”, “E01-37” and “E01-34” terminals.
3) If OK, measure resistance between “GRN” wire terminal
and each “BRN”, “RED” wire terminals of APP sensor
assembly connector.
Is each resistance infinity?Go to Step 7. “GRN” wire is shorted to
“BRN” wire and/or
“RED” wire.
7Wire harness check
1) Turn ON ignition switch.
2) Measure voltage between “E01-37” terminal of ECM
connector and engine ground.
Is voltage 0 V?Go to Step 8. “GRN” wire is shorted to
power circuit.
8Ground circuit check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Measure resistance between “BLU” wire terminal of APP
sensor assembly connector and vehicle body ground.
Is resistance below 5
Ω?Go to Step 10. Go to Step 9.
9Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Check for proper connection of ECM connector at “E01-
52” terminal.
3) If OK, measure resistance between “E01-52” terminal of
ECM connector and engine ground.
Is resistance below 5
Ω?“BLU” wire is open or
high resistance circuit.Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
10APP sensor assembly check
1) Check APP sensor (main) referring to “Accelerator Pedal
Position (APP) Sensor Assembly Inspection in Section
1C”.
Is output voltage within specified value?Substitute a known-
good ECM and recheck.Replace APP sensor
assembly. Step Action Yes No
DTC detecting condition Trouble area
Output voltage of APP sensor (sub) is lower than specified value.
(1 driving detection logic)• APP sensor (sub) circuit
• APP sensor assembly
•ECM
• Incorrect mounting of APP sensor assembly

Downloaded from www.Manualslib.com manuals search engine 1A-156 Engine General Information and Diagnosis:
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check 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”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP sensor (sub) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 2 Volt”
displayed on scan tool.
Is displayed voltage below 0.179 V?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4ECM voltage check
1) Disconnect connector from APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly at
“RED”, “YEL” and “WHT” wire terminals.
3) If OK, measure voltage between “RED” wire terminal of
APP sensor assembly connector and vehicle body
ground with ignition switch turned ON.
Is voltage 4 – 6 V?Go to Step 7. Go to Step 5.
"GRN" "BLU" "BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01

Downloaded from www.Manualslib.com manuals search engine 1A-158 Engine General Information and Diagnosis:
DTC P2128: Pedal Position Sensor (Sub) Circuit High InputS6RW0D1104065
Wiring Diagram
Refer to “DTC P2122: Pedal Position Sensor (Main) Circuit Low Input”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

DTC detecting condition Trouble area
Output voltage of APP sensor (sub) is higher than specified value.
(1 driving detection logic)• APP sensor (sub) circuit
• APP sensor assembly
•ECM
• Incorrect mounting of APP sensor assembly
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP sensor (sub) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 2 Volt”
displayed on scan tool.
Is displayed voltage 4.76 V or more?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-203
Troubleshooting
Step Action Yes No
1Check A/C condenser fan control system
Is A/C condenser fan started when A/C is operating?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.Go to Step 2.
2Check A/C condenser fan relay and its circuit
1) Connect scan tool to DLC with ignition switch OFF.
2) Check pending DTC and DTC with scan tool.
Is DTC P0481 displayed?Go to “DTC P0481:
Cooling Fan 2 (A/C
Condenser Fan) Control
Circuit”.Go to Step 3.
3Check A/C refrigerant
1) Check amount of A/C refrigerant referring to “A/C
System Performance Inspection in Section 7B”.
Is it good condition?Go to Step 4. Recharge refrigerant.
4Check wire circuit
1) Disconnect A/C condenser cooling fan control relay from
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “BLU/YEL” wire terminal of A/C
condenser cooling fan control relay connector.
Is voltage 10 – 14V?Go to Step 7. Go to Step 5.
5Check wire circuit
1) Disconnect A/C compressor control relay from individual
circuit fuse box No.1 with ignition switch turn OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “BLU/YEL” wire terminal of A/C
compressor control relay connector.
Is voltage 10 – 14 V?Faulty A/C compressor
control relay.Go to Step 6.
6Check wire circuit
1) Remove “A/C” fuse “20 A” from individual circuit fuse box
No.1 with ignition switch turned OFF.
2) Measure resistance between “BLU/YEL” wire terminal of
main fuse connector and engine ground.
Is resistance infinity?Open wire in “BLU/YEL”
circuit. If OK, go to Step
7.“BLU/YEL” wire shorted
to ground circuit.
7Check wire circuit
1) Disconnect connector from A/C condenser cooling fan
with ignition switch tun OFF.
2) Measure resistance between engine ground and “RED”
wire terminal of A/C condenser fan connector.
Is resistance infinity?Go to Step 8. “RED” wire shorted to
ground 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?Go to Step 9. Replace relay.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-207
6A/C evaporator outlet air temp. sensor check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection to “E01-57” and “E01-54”
wire terminals of ECM connector.
3) If OK, measure resistance between “E01-57” and “E01-
54” wire terminals of ECM connector.
Evaporator temp. sensor resistance
At 0 °C: 6.3 – 6.9 kΩ
At 25 °C: 1.8 – 2.2 kΩ
Is resistance within specification?Go to Step 7. Faulty A/C evaporator
outlet air temp. sensor
or its circuit.
7DTC check of A/C refrigerant pressure sensor circuit
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check ECM for DTC of A/C refrigerant pressure sensor
circuit.
Is there DTC P0532 or DTC P0533?Go to applicable DTC
diag. flow.Go to Step 8.
8A/C refrigerant pressure sensor voltage check
1) Check A/C refrigerant pressure sensor voltage referring
to “Inspection of ECM and Its Circuits”.
Is voltage within specified value?Go to Step 9. Check amount of
refrigerant. If OK,
replace A/C refrigerant
pressure sensor.
9A/C condenser cooling fan check
1) Check A/C condenser cooling fan referring to
“Condenser Cooling Fan Inspection in Section 7B”.
Is check result satisfactory?A/C condenser cooling
fan drive circuit
malfunction. If circuit is
OK, go to Step 6.Replace A/C condenser
cooling fan motor.
10A/C compressor control system check
Is A/C compressor started when A/C and blower speed
selector switch are turned ON with engine running?A/C system is in good
condition.Go to Step 11. Step Action Yes No
7
6
5
4
3
2
1
10
20
30
4050 010
2030
60 70
80 ResistanceTemperatureI3RB0A110053-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-1
Engine
Engine Electrical Devices
Repair Instructions
Engine Control Module (ECM) Removal and
Installation
S6RW0D1306001
CAUTION!
As ECM consists of precision parts, be
careful not to expose it to excessive shock.

Removal
1) Disconnect negative cable at battery.
2) Disconnect connectors from ECM as follows.
a) Push lock (1) to release locking of lock lever (2).
b) Turn lock lever to arrow direction until it stops.
3) Remove ECM (1) from its bracket by removing its
mounting bolts (2).Installation
Reverse removal procedure noting the following:
• Tighten ECM mounting bolts to specified torque.
Tightening torque
ECM mounting bolt (a): 8 N·m (0.8 kgf-m, 6.0 lb-
ft)
• Connect connectors to ECM as follows.
a. Make sure that lock lever of ECM connector is
unlock position.
b. Insert ECM connectors to ECM until it stops with
unlocked lock lever.
c. Lock ECM connectors securely by pulling its lock
lever up.
12I4RS0A130003-01
1
2 2
I5RW0A130001-01
(a) (a)
I5RW0A130002-01
I4RS0B130021-01
I4RS0B130022-01
I4RS0A130004-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-5
Electric Throttle Body System CalibrationS6RW0D1306004
NOTE
If the service described under the
“Precautions of Electric Throttle Body
System Calibration in Section 1A” is
performed, calibrate electric throttle body
system as follows.

1) If electric throttle body assembly and/or accelerator
pedal position (APP) sensor assembly are replaced,
perform following steps.
a) Disconnect negative cable at battery for 20
seconds or more for the purpose of clearing
calibration data of closed throttle position from
memory in ECM.
b) Connect negative cable to battery.
2) Keep ignition switch at ON position for 5 seconds or
more without running engine.
Accelerator Pedal Position (APP) Sensor
Assembly On-Vehicle Inspection
S6RW0D1306005
1) Check that APP sensor assembly has been mounted
to vehicle body properly (no pinched floor carpet,
etc.).
If mounting is not properly, reinstall APP sensor
assembly properly referring to “Accelerator Pedal
Position (APP) Sensor Assembly Removal and
Installation”.
2) Connect scan tool to DLC with ignition switch turned
OFF.
3) Turn ON ignition switch and select “Data List” mode
on scan tool.4) Check that accelerator pedal position sensor voltage
varies as the following graph.
If sensor voltage is out of specified value or does not
vary linearly as the following graph, check APP
sensor assembly referring to “Accelerator Pedal
Position (APP) Sensor Assembly Inspection”.
Accelerator Pedal Position (APP) Sensor
Assembly Removal and Installation
S6RW0D1306006
CAUTION!
• Do not expose APP sensor assembly to
excessive shock like a dropping it. If APP
sensor assembly has been exposed to
excessive shock, it should be replaced.
• Be careful not to expose sensor section of
APP sensor assembly to water.

NOTE
After replacing APP sensor assembly,
perform calibration of throttle valve referring
to “Electric Throttle Body System
Calibration”.

[A]: APP sensor (main) voltage
[B]: APP sensor (sub) voltage
[C]: Voltage
[D]: Idle position of accelerator pedal
[E]: Full depressed position of accelerator pedal
[C]
[D] [E]
3.50 - 4.27 V
1.74 - 2.17 V
0.65 - 0.82 V
0.30 - 0.44 V
[A]
[B]
I7RW01130020-01