2006 SUZUKI SX4 light

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-39
*) SHORT FT B1
(SHORT TERM FUEL TRIM)At specified idle speed after warming up –20 – +20%
*) LONG FT B1
(LONG TERM FUEL TRIM)At specified idle speed after warming up –20 – +20%
) TOTAL FUEL TRIM B1 At specified idle speed after warming up –35 – +35%
) FUEL CUTEngine at fuel cut condition ON
Engine at other than fuel cut condition OFF
) O2S B1 S2 ACT
(HEATED OXYGEN
SENSOR-2) (if equipped)At specified idle speed after warming up ACTIVE
) O2S B1 S1 ACT
(HEATED OXYGEN
SENSOR-1)At specified idle speed after warming up ACTIVE
*) CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)At specified idle speed after warming up 0%
*) IGNITION ADVANCE
(IGNITION TIMING
ADVANCE FOR NO.1
CYLINDER)At specified idle speed with no load after warming up 5 – 15° BTDC
*) EGR VALVE OPENING (if
equipped) At specified idle speed after warming up 0%
) VVT GAP
(TARGET-ACTUAL
POSITION) (VVT model)At specified idle speed after warming up 0 – 3°
) FUEL PUMPWithin 2 seconds after ignition switch ON or engine
runningON
Engine at stop with ignition switch ON OFF
) STARTER SW
(STARTER SWITCH)Ignition switch is turned to ST (engine cranking)
positionON
) A/C PRESSURE
(A/C REFERIGERANT
ABSOLUTE PRESSURE)Engine runningA/C ON (A/C is operating) at
ambient temperature: 30 °C
(86 °F) and humidity: 50%1350 – 1650 kPa For more
details, refer to pressure of
high pressure gage under “A/C
System Performance
Inspection in Section 7B”.
A/C OFF (A/C is not
operating) at ambient
temperature: 30 °C (86 °F)
and engine coolant
temperature: 90 – 100 °C
(194 – 212 °F)600 – 1000 kPa After longer
than 10 min from A/C switch
turned off
) A/C SWITCHEngine running after warming up, A/C not operating OFF
Engine running after warming up, A/C operating ON
) A/C COMP RELAY Engine runningA/C switch and blower motor
switch turned ONON
A/C switch and blower motor
switch turned OFFOFF
) BLOWER FAN Ignition switch ON
Blower fan switch: 2nd
speed position or moreON
Blower fan switch: under 1st
speed positionOFF
) ELECTRIC LOADIgnition switch ON / Headlight, small light, all turned
OFFOFF
Ignition switch ON / Headlight, small light, all turned
ONON Scan tool data Vehicle conditionNormal condition /
reference values

Downloaded from www.Manualslib.com manuals search engine 1A-42 Engine General Information and Diagnosis:
CANIST PRG DUTY (EVAP CANISTER PURGE FLOW
DUTY, %)
This parameter indicates valve ON (valve open) time
rate within a certain set cycle of EVAP canister purge
valve which controls the amount of EVAP purge.
IGNITION ADVANCE (IGNITION TIMING ADVANCE
FOR NO.1 CYLINDER, °)
Ignition timing of No.1 cylinder is commanded by ECM.
The actual ignition timing should be checked by using
the timing light.
EGR VALVE OPENING (%)
This parameter indicates opening rate of EGR valve
which controls the amount of EGR flow.
VVT GAP (TARGET-ACTUAL POSITION, °) (VVT
model)
It is calculated using the formula: target valve timing
advance – actual valve timing advance.
FUEL PUMP (ON/OFF)
ON is displayed when ECM activates the fuel pump via
the fuel pump relay switch.
STARTER SW (STARTER SWITCH, ON/OFF)
This parameter indicates condition of starting motor relay
output.
ON: Starting motor relay is ON
OFF: Starting motor relay is OFF
A/C PRESSURE (A/C REFRIGERANT ABSOLUTE
PRESSURE, kPa)
This parameter indicates A/C refrigerant absolute
pressure calculated by ECM.
A/C SWITCH (ON/OFF)
ON: Command for A/C operation being output from ECM
to HVAC.
OFF: Command for A/C operation not being output.
A/C COMP RELAY (A/C COMPRESSOR RELAY, ON/
OFF)
This parameter indicates the state of the A/C switch.
BLOWER FAN (ON/OFF)
This parameter indicates the state of the blower fan
motor switch.
ELECTRIC LOAD (ON/OFF)
ON: Headlight or small light ON signal inputted.
OFF: Above electric loads all turned OFF.
RADIATOR COOLING FAN (RADIATOR COOLING
FAN CONTROL RELAY, ON/OFF)
ON: Command for radiator cooling fan control relay
operation being output.
OFF: Command for relay operation not being output.A/C COND FAN (A/C CONDENSER COOLING FAN
CONTROL RELAY, ON/OFF)
ON: Command for A/C condenser cooling fan control
relay operation being output.
OFF: Command for relay operation not being output.
TP SENSOR 1 VOLT (THROTTLE POSITION SENSOR
(MAIN) OUTPUT VOLTAGE, V)
The Throttle Position Sensor (Main) reading provides
throttle valve opening information in the form of voltage.
TP SENSOR 2 VOLT (THROTTLE POSITION SENSOR
(SUB) OUTPUT VOLTAGE, V)
The Throttle Position Sensor (Sub) reading provides
throttle valve opening information in the form of voltage.
APP SENSOR 1 VOLT (ACCELERATOR PEDAL
POSITION (APP) SENSOR (MAIN) OUTPUT
VOLTAGE, V)
The Accelerator Pedal Position (APP) Sensor (Main)
reading provides accelerator pedal opening information
in the form of voltage.
APP SENSOR 2 VOLT (ACCELERATOR PEDAL
POSITION (APP) SENSOR (SUB) OUTPUT VOLTAGE,
V)
The Accelerator Pedal Position (APP) Sensor (Sub)
reading provides accelerator pedal opening information
in the form of voltage.
ACCEL POSITION (RELATIVE ACCELERATOR
PEDAL POSITION, %)
When accelerator pedal is at fully released position,
accelerator pedal is indicated as 0 – 3% and 90 – 100%
fully depressed position.
TARGET THROTTLE POSI (TARGET THROTTLE
VALVE POSITION, %)
Target Throttle Valve Position is ECM internal parameter
which indicates the ECM requested throttle valve
position.
IAC THROTTLE OPENING (IDLE AIR (SPEED)
CONTROL THROTTLE VALVE OPENING, %)
This parameter indicates throttle valve opening of idle air
control in %.
(100% indicates the maximum idle air flow.)
THROTTLE MOTOR VOLT (V)
This parameter indicates power supply voltage of throttle
actuator (motor) control circuit (input voltage from
throttle actuator control relay).
CLOSED THROTTLE POS (CLOSED THROTTLE
POSITION, ON/OFF)
This parameter reads ON when throttle valve is fully
closed, or OFF when it is not fully closed.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-53
Troubleshooting
NOTE
• Before performed trouble shooting, be sure to read the “Precautions of ECM Circuit Inspection”.
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits”.

Step Action Yes No
1MIL power supply check
1) Turn ignition switch to ON position.
Do other warning lights come ON?Go to Step 2. Go to Step 3.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC in ECM.
Is there DTC(s) U0073 and/or U0121?Go to applicable DTC
diag. flow.Go to Step 3.
3Combination meter power supply and ground circuit
check
1) Turn ignition switch OFF position.
2) Disconnect connector from combination meter.
3) Check for proper connection to power supply and
ground terminals of combination meter connector.
4) If connections are OK, check that combination meter
circuit is as follows.
• Circuit voltage between combination meter power
supply terminal and vehicle body ground is 10 –14 V.
• Wiring harness resistance of combination meter
ground terminal and vehicle body ground is less than
3 Ω.
Are they in good condition?Go to Step 4. Repair or replace.
4CAN communication line circuit check
1) Check CAN communication line circuit between control
modules for open, short, high resistance and
connections referring to Step 5 to 10 under
“Troubleshooting for Communication Error with Scan
Tool Using CAN”.
Is circuit in good condition?Substitute a known-
good combination meter
and recheck. If MIL still
remains OFF, substitute
a known-good ECM and
recheck.Repair or replace.

Downloaded from www.Manualslib.com manuals search engine 1A-128 Engine General Information and Diagnosis:
DTC P0462 / P0463: Fuel Level Sensor Circuit Low / HighS6RW0D1104047
Wiring Diagram
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) Start engine and run it for 30 sec. or more.
4) Check DTC and pending DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

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
12 V
13
2
E01-24
BLK/ORN
YEL/REDYEL/RED
12 V
YEL/RED
I6RW0D110040-01
1. Fuel level sensor (gauge) 2. ECM 3. Combination meter
DTC detecting condition Trouble area
P0462:
Fuel level sensor voltage is lower than specified value for 3 sec.
(1 driving cycle detection logic but MIL does not light up)
P0463:
Fuel level sensor voltage is higher than specified value for 30 sec.
(1 driving cycle detection logic but MIL does not light up)• “YEL/RED” circuit malfunction
• ECM power and/or ground circuit malfunction
• ECM malfunction
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Clear DTC and recheck DTC with scan tool.
Is there P0463?Go to Step 3. 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-131
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

Downloaded from www.Manualslib.com manuals search engine 1A-136 Engine General Information and Diagnosis:
DTC P0532: A/C Refrigerant Pressure Sensor Circuit LowS6RW0D1104051
Wiring Diagram
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 using scan tool.
3) Start engine and warm up engine to normal operating temperature.
4) Run engine at idle and turn both A/C switch and heater blower switch ON (turn ON air conditioning) for 3 min. or
more.
5) Check DTC and pending DTC.
Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

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
4
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
12
3
GRY/REDGRY/RED
ORNORN
5V
5VC01-14
E01-55
E01-54
RED/BLU
E01-31 BLK
I6RW0D110044-01
1. A/C refrigerant pressure sensor 2. To MAP sensor 3. To other sensors 4. ECM
DTC detecting condition Trouble area
A/C refrigerant pressure sensor signal voltage is less than specified
value.
(1 driving detection logic but MIL does not light up)• A/C refrigerant pressure sensor circuit
• A/C refrigerant pressure sensor
• MAP sensor
•ECM
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.

Downloaded from www.Manualslib.com manuals search engine 1A-138 Engine General Information and Diagnosis:
DTC P0533: A/C Refrigerant Pressure Sensor Circuit HighS6RW0D1104052
Wiring Diagram
Refer to “DTC P0532: A/C Refrigerant Pressure Sensor Circuit Low”.
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 using scan tool.
3) Start engine and warm up engine to normal operating temperature.
4) Run engine at idle and turn both A/C switch and heater blower switch ON (turn ON air conditioning) for 3 min. or
more.
5) Check DTC and pending 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
A/C refrigerant pressure sensor signal voltage is higher than specified
value.
(1 driving detection logic but MIL does not light up)• A/C refrigerant pressure sensor circuit
• A/C refrigerant pressure sensor
• MAP sensor
•ECM
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
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 4. 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. “GRY/RED” wire is open
or shorted to power
circuit.
4A/C refrigerant pressure sensor signal circuit check
1) 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 6. Go to Step 5.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-139
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