Downloaded from www.Manualslib.com manuals search engine Table of Contents 1- i
1
Section 1
CONTENTS
Engine
Precautions ................................................. 1-1
Precautions............................................................. 1-1
Precautions for Engine .......................................... 1-1
Engine General Information and
Diagnosis ................................................. 1A-1
Precautions........................................................... 1A-1
Precautions on Engine Service ........................... 1A-1
Precaution on On-Board Diagnostic (OBD)
System .............................................................. 1A-1
Precautions in Diagnosing Trouble ..................... 1A-1
Precautions for DTC Troubleshooting ................. 1A-2
Precautions of ECM Circuit Inspection................ 1A-2
Precautions of Electric Throttle Body System
Calibration ......................................................... 1A-2
Precaution on CAN Troubleshooting .................. 1A-3
General Description ............................................. 1A-5
Statement on Cleanliness and Care ................... 1A-5
Engine Diagnosis General Description ............... 1A-5
On-Board Diagnostic System Description ........... 1A-5
Data Link Connector (DLC) ................................. 1A-8
Engine and Emission Control System
Description ........................................................ 1A-8
CAN Communication System Description........... 1A-9
Air Intake System Description ........................... 1A-11
Description of Electric Throttle Body System
Calibration ....................................................... 1A-11
Description of Electric Throttle Body System .... 1A-11
Engine and Emission Control Input / Output
Table ............................................................... 1A-18
Schematic and Routing Diagram ...................... 1A-19
Engine and Emission Control System
Diagram .......................................................... 1A-19
Component Location ......................................... 1A-21
Electronic Control System Components
Location .......................................................... 1A-21
Diagnostic Information and Procedures .......... 1A-22
Engine and Emission Control System Check.... 1A-22
Malfunction Indicator Lamp (MIL) Check .......... 1A-25
DTC Check ....................................................... 1A-25
DTC Clearance ................................................. 1A-26
Troubleshooting for Communication Error
with Scan Tool Using CAN.............................. 1A-26
DTC Table ......................................................... 1A-32For Vehicle Equipped with A/T .......................... 1A-36
Fail-Safe Table .................................................. 1A-36
Scan Tool Data ................................................. 1A-38
Visual Inspection ............................................... 1A-43
Engine Basic Inspection .................................... 1A-43
Engine Symptom Diagnosis .............................. 1A-45
Malfunction Indicator Lamp Does Not Come
ON with Ignition Switch ON and Engine Stop
(but Engine Can Be Started) ........................... 1A-52
Malfunction Indicator Lamp Remains ON after
Engine Starts................................................... 1A-54
DTC P0010: Camshaft Position Actuator
Circuit (for engine with VVT system) ............... 1A-55
DTC P0011 / P0012: Camshaft Position -
Timing Over-Advanced or System
Performance / Retarded (for engine with
VVT system).................................................... 1A-57
DTC P0031 / P0032: HO2S Heater Control
Circuit Low / High (Sensor-1) .......................... 1A-59
DTC P0037 / P0038: HO2S Heater Control
Circuit Low / High (Sensor-2) .......................... 1A-61
DTC P0101: Mass Air Flow Circuit Range /
Performance.................................................... 1A-63
DTC P0102: Mass Air Flow Circuit Low Input ... 1A-66
DTC P0103: Mass Air Flow Circuit High Input .. 1A-67
DTC P0106: Manifold Absolute Pressure
Range / Performance ...................................... 1A-69
DTC P0107: Manifold Absolute Pressure
Circuit Low Input ............................................. 1A-70
DTC P0108: Manifold Absolute Pressure
Circuit High Input............................................. 1A-72
DTC P0111: Intake Air Temperature Circuit
Range / Performance ...................................... 1A-74
DTC P0112: Intake Air Temperature Sensor
Circuit Low ...................................................... 1A-76
DTC P0113: Intake Air Temperature Sensor
Circuit High...................................................... 1A-78
DTC P0116: Engine Coolant Temperature
Circuit Range / Performance ........................... 1A-80
DTC P0117: Engine Coolant Temperature
Circuit Low ...................................................... 1A-83
DTC P0118: Engine Coolant Temperature
Circuit High...................................................... 1A-85
DTC P0122: Throttle Position Sensor (Main)
Circuit Low ...................................................... 1A-87
Downloaded from www.Manualslib.com manuals search engine 1A-32 Engine General Information and Diagnosis:
DTC TableS6RW0D1104005
NOTE
• There are two types of OBD system depending on the vehicle specification.
For identification, refer to “Precaution on On-Board Diagnostic (OBD) System”.
• For non-Euro-OBD model, some of DTC No. with delta ( U) mark in the following table can not be
detected by ECM depending on vehicle specification.
• With the CAN communication generic scan tool, only star (*) marked DTC No. in the following table
can be read.
• 1 driving cycle: MIL lights up when DTC is detected during 1 driving cycle.
• 2 driving cycles: MIL lights up when the same DTC is detected also in the next driving cycle after
DTC is detected and stored temporarily in the first driving cycle.
• *2 driving cycles:
MIL blinks or lights up. Refer to “DTC P0300 / P0301 / P0302 / P0303 / P0304: Random Misfire
Detected / Cylinder 1 / Cylinder 2 / Cylinder 3 / Cylinder 4 Misfire Detected” for details.
DTC No. Detecting itemDetecting condition
(DTC will set when detecting:)MIL
) *P0010Camshaft position actuator circuit
(for engine with VVT system)Oil control valve circuit open or short.1 driving
cycle
) *P0011Camshaft position – timing over-
advanced or system performance
(for engine with VVT system)Actual value of advanced valve timing does not reach
target value, or valve timing is advanced although ECM
command is most retarding.2 driving
cycles
) *P0012Camshaft position – timing over-
retarded
(for engine with VVT system)2 driving
cycles
) *P0031HO2S heater control circuit low
(Sensor-1)Heater current is less than specification while heater ON.2 driving
cycles
) *P0032HO2S heater control circuit high
(Sensor-1)Heater current is more than specification while heater ON.2 driving
cycles
)
U*P0037HO2S heater control circuit low
(Sensor-2)Heater current is less than specification while heater ON.2 driving
cycles
)
U*P0038HO2S heater control circuit high
(Sensor-2)Heater current is more than specification while heater ON.2 driving
cycles
)
U*P0101Mass air flow circuit range/
performanceMAF sensor volume is more than specification or less
than specification.2 driving
cycles
) *P0102 Mass air flow circuit low input Output voltage of MAF sensor is less than specification.1 driving
cycle
) *P0103 Mass air flow circuit high input Output voltage of MAF sensor is more than specification.1 driving
cycle
)
U*P0106Manifold absolute pressure circuit
range/performanceDifference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than
specification or difference between barometric pressure
value and manifold pressure value is less than
specification2 driving
cycles
)
U*P0107Manifold absolute pressure circuit
low inputOutput voltage of MAP sensor is less than specification.
1 driving
cycle
)
U*P0108Manifold absolute pressure circuit
high inputOutput voltage of MAP sensor is more than specification.1 driving
cycle
)
U* P 0 111Intake air temperature sensor circuit
range/performanceVariation of intake air temperature from engine start is
less than specification.2 driving
cycles
) *P0112Intake air temperature sensor circuit
lowCircuit voltage of IAT sensor is less than specification.1 driving
cycle
) *P0113Intake air temperature sensor circuit
highCircuit voltage of IAT sensor is more than specification.1 driving
cycle
)
U*P0116Engine coolant temperature circuit
range/performanceEngine coolant temperature is less than specified
temperature for specified time from engine start.2 driving
cycles
Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-55
DTC P0010: Camshaft Position Actuator Circuit (for engine with VVT system)S6RW0D1104013
System and Wiring Diagram
Circuit Description
Actual valve timing fails to become close to target advance level of each function although advance control function or
retarded advance control function is at work.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC. Refer to “DTC Clearance”.
2) Start engine and keep it at idle for 10 seconds.
3) Check DTC. Refer to “DTC Check”.
3
7
1
[A]:45
6
C01-58
C01-15
C01-30
E01-31BLK
BLK
BLK/ORN
RED
YEL
GRN/RED
GRN/WHT
C01-60
C01-59
3
2
1
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
I6RW0D110019-01
[A]: Oil flow 2. ECM 4. Oil filter 6. Oil pan
1. Oil control valve 3. Camshaft timing sprocket 5. Oil pump 7. Intake camshaft
DTC detecting condition Trouble area
Monitor signal of oil control valve is different from command signal. (Circuit open or short)
(1 driving cycle detection logic)• Oil control valve
• Oil control valve circuit
•ECM
Downloaded from www.Manualslib.com manuals search engine 1A-58 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”.
2Do you have SUZUKI scan tool?Go to Step 3. Go to Step 5.
3Camshaft position control check
1) With ignition switch turned OFF, connect SUZUKI scan
tool.
2) Start engine and warm up to normal operating
temperature.
3) Select menu to “Data List”.
4) Check that “VVT GAP” displayed on SUZUKI scan tool is
0 – 3°.
Is it OK?Go to Step 4. Check valve timing
referring to “Timing
Chain and Chain
Tensioner Removal and
Installation in Section
1D”. If OK, go to Step 5.
4Camshaft position control check
1) Drive vehicle under following conditions.
• Vehicle speed at 80 km/h (50 mile/h).
• Gear position at 5th or D range.
2) Check that “VVT GAP” displayed on SUZUKI scan tool is
0 – 5°.
Is it OK?Substitute a known-
good ECM and recheck.Go to Step 5.
5Oil control circuit visual inspection
1) Remove cylinder head cover referring to “Cylinder Head
Cover Removal and Installation in Section 1D”.
2) Check oil pressure leakage from oil control circuit.
Is it in good condition?Go to Step 6. Repair or replace.
6Oil control valve and oil gallery pipe check
1) Remove oil control valve referring to “Oil Control Valve
Removal and Installation (For Engine with VVT) in
Section 1D”.
2) Remove oil gallery pipe referring to “Timing Chain Cover
Removal and Installation in Section 1D”.
3) Check oil gallery pipe and oil control valve for clog or
sludge.
Are they in good condition?Go to Step 7. Clean oil control valve
and oil gallery pipe.
Replace oil control valve
if a problem is not
solved after cleaning oil
control valve and oil
gallery pipe.
7Oil control valve electrical circuit check
1) Check that oil control valve circuit is in good condition
referring to “DTC P0010: Camshaft Position Actuator
Circuit (for engine with VVT system)”.
Is circuit in good condition?Repair circuit. Go to Step 8.
8Oil control valve check
1) Check oil control valve referring to “Oil Control Valve
Inspection (For Engine with VVT) in Section 1D”.
Is it in good condition?Replace camshaft
timing sprocket.Replace oil control
valve.