Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 13
Table of Contents 1- i
1
Section 1
CONTENTS
Engine
Precautions . . . . . . . . . . . . .1-1
Precautions. . . . . . . . . . . . . . . . 1-1
Engine General Information and
Diagnosis . . . . . . . . . . . . . 1A-1
For Petrol Engine Model. . . . . . . . . . .1A-1
Precautions. . . . . . . . . . . . . . ...1A-1
Precautions on Engine Service . . . . . . ... 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
General Description . . . . . . . . . . . .1A-3
Statement on Cleanliness and Care . . . . ... 1A-3
Engine Diagnosis General Description . . . ... 1A-3
On-Board Diagnostic System Description. . ... 1A-4
Engine and Emission Control System
Description . . . . . . . . . . . . . . 1A-7
CAN Communication System Description. . ... 1A-7
Air Intake System Description. . . . . . ... 1A-10
Electric Throttle Body System Description . . 1A-11
Description of Electric Throttle Body System
Calibration. . . . . . . . . . . . . ...1A-12
Generator Control System Description . . . .1A-12
A/F Sensor Description . . . . . . . . . . 1A-13
Electronic Control System Description. . . .. 1A-14
Engine and Emission Control Input / Output
Table . . . . . . . . . . . . . . . ... 1A-15
Schematic and Routing Diagram. . . . . ..1A-16
Engine and Emission Control System
Diagram . . . . . . . . . . . . . . ..1A-16
Engine and Emission Control System Flow
Diagram . . . . . . . . . . . . . . ..1A-18
ECM Input / Output Circuit Diagram. . . . ..1A-19
Component Location . . . . . . . . . . .1A-25
Electronic Control System Components
Location . . . . . . . . . . . . . . ..1A-25
Diagnostic Information and Procedures. . ..1A-27
Engine and Emission Control System Check. 1A-27
Malfunction Indicator Lamp (MIL) Check . . .. 1A-30
DTC Check . . . . . . . . . . . . . ...1A-31
DTC Clearance . . . . . . . . . . . . .1A-32
DTC Table. . . . . . . . . . . . . . .1A-33
Fail-Safe Table. . . . . . . . . . . . ..1A-39
Scan Tool Data . . . . . . . . . . . . .1A-41
Visual Inspection . . . . . . . . . . . ...1A-47
Engine Basic Inspection. . . . . . . . . 1A-48
Engine Symptom Diagnosis . . . . . . . ..1A-52
Malfunction Indicator Lamp Does Not Come
ON with Ignition Switch ON and Engine Stop
(but Engine Can Be Started) . . . . . . ...1A-63
Malfunction Indicator Lamp Remains ON after
Engine Starts. . . . . . . . . . . . ...1A-65
DTC P0010: Camshaft Position Actuator
Circuit (For M16 Engine) . . . . . . . . .1A-66
DTC P0011 / P0012: Camshaft Position -
Timing Over-Advanced or System
Performance / -Retarded (For M16 Engine). 1A-68
DTC P0030: HO2S Heater Control Circuit
(Sensor-1) . . . . . . . . . . . . . ...1A-70
DTC P0031 / P0032: HO2S Heater Control
Circuit Low / High (Sensor-1) . . . . . . ..1A-72
DTC P0037 / P0038: HO2S Heater Control
Circuit Low / High (Sensor-2) . . . . . . ..1A-75
DTC P0101: Mass Air Flow Circuit Range /
Performance. . . . . . . . . . . . . 1A-79
DTC P0102: Mass Air Flow Circuit Low Input ...1A-83
DTC P0103: Mass Air Flow Circuit High Input ..1A-84
DTC P0106: Manifold Absolute Pressure
Range / Performance . . . . . . . . . ..1A-86
DTC P0107: Manifold Absolute Pressure
Circuit Low Input . . . . . . . . . . . .1A-87
DTC P0108: Manifold Absolute Pressure
Circuit High Input. . . . . . . . . . . .1A-89
DTC P0111: Intake Air Temperature Circuit
Range / Performance . . . . . . . . . ..1A-91
DTC P0112: Intake Air Temperature Sensor
Circuit Low . . . . . . . . . . . . . ..1A-93
DTC P0113: Intake Air Temperature Sensor
Circuit High. . . . . . . . . . . . . ..1A-95
DTC P0116: Engine Coolant Temperature
Circuit Range / Performance. . . . . . ...1A-97
DTC P0117: Engine Coolant Temperature
Circuit Low . . . . . . . . . . . . . 1A-100
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Precautions: 1-1
Engine
Precautions
Precautions
Precautions for Engine (Petrol Engine Model)
S6JB0A1000001
Air Bag Warning
Refer to “Air Bag Warning in Section 00”.
Precautions on Engine Service
Refer to “Precautions on Engine Service: For Petrol
Engine Model in Section 1A”.
Precautions in Diagnosing Trouble
Refer to “Precautions in Diagnosing Trouble: For Petrol
Engine Model in Section 1A”.
Precautions for DTC Troubleshooting
Refer to “Precautions for DTC Troubleshooting: For
Petrol Engine Model in Section 1A”.
Precautions on Fuel System Service
Refer to “Precautions on Fuel System Service: For
Petrol Engine Model in Section 1G”.
Engine Cooling System Warning
Refer to “Coolant Description: For Petrol Engine Model
in Section 1F”.
Cranking System Note
Refer to “Cranking System Note: For Petrol Engine
Model in Section 1I”.
Exhaust System Caution
Refer to “Exhaust System Check: For Petrol Engine
Model in Section 1K”.
Precaution for CAN Communication System
Refer to “Precaution for CAN Communication System in
Section 00”.
Precautions for Catalytic Converter
Refer to “Precautions for Catalytic Converter (Petrol
Engine Model) in Section 00”.
Precautions for Electrical Circuit Service
Refer to “Precautions for Electrical Circuit Service in
Section 00”.
Precautions of ECM Circuit Inspection
Refer to “Precautions of ECM Circuit Inspection: For
Petrol Engine Model in Section 1A”.
Precautions of Electric Throttle Body System
Calibration
Refer to “Precautions of Electric Throttle Body System
Calibration: For Petrol Engine Model in Section 1A”.
Precaution in Replacing ECM
Refer to “Precaution in Replacing ECM: For Petrol
Engine Model in Section 10C”.
Precautions for Engine (Diesel Engine Model)
S6JB0A1000002
Air Bag Warning
Refer to “Air Bag Warning in Section 00”.
Precautions on Engine Service
Refer to “Precautions on Engine Service: For Diesel
Engine Model in Section 1A”.
Precautions in Diagnosing Trouble
Refer to “Precautions in Diagnosing Trouble: For Diesel
Engine Model in Section 1A”.
Statement on Cleanliness and Care
Refer to “Statement on Cleanliness and Care: For Diesel
Engine Model in Section 1A”.
Precautions on Fuel System Service
Refer to “Precautions on Fuel System Service: For
Diesel Engine Model in Section 1G”.
Engine Cooling System Warning
Refer to “Coolant Description: For Diesel Engine Model
in Section 1F”.
Exhaust System Caution
Refer to “Exhaust System Check: For Diesel Engine
Model in Section 1K”.
Precaution for CAN Communication System
Refer to “Precaution for CAN Communication System in
Section 00”.
Precautions for Catalytic Converter
Refer to “Precautions for Catalytic Converter and Diesel
Particulate Filter (Diesel Engine Model) in Section 00”.
Precautions for Electrical Circuit Service
Refer to “Precautions for Electrical Circuit Service in
Section 00”.
Precaution in Replacing ECM
Refer to “Precaution in Replacing ECM: For Diesel
Engine Model in Section 1C”.
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1A-1 Engine General Information and Diagnosis: For Petrol Engine Model
Engine
Engine General Information and Diagnosis
For Petrol Engine Model
Precautions
Precautions on Engine Service
S6JB0A1110001
CAUTION
!
The following information on engine service
should be noted carefully, as it is important in
preventing damage, and in contributing to
reliable engine performance.
• When raising or supporting engine for any reason, do
not use a jack under oil pan. Due to small clearance
between oil pan and oil pump strainer, jacking against
oil pan may cause it to be bent against strainer,
resulting in damaged oil pick-up unit.
• It should be kept in mind, while working on engine,
that 12-volt electrical system is capable of violent and
damaging short circuits.
When performing any work where electrical terminals
can be grounded, ground cable of the battery should
be disconnected at battery.
• Any time the air cleaner, throttle body or intake
manifold is removed, the intake opening should be
covered. This will protect against accidental entrance
of foreign material which could follow intake passage
into cylinder and cause extensive damage when
engine is started.
Precautions in Diagnosing Trouble
S6JB0A1110002
• Don’t disconnect couplers from ECM, battery cable
from battery, ECM ground wire harness from engine
or main fuse before confirming diagnostic information
(DTC, freeze frame data, etc.) stored in ECM memory.
Such disconnection will erase memorized information
in ECM memory.
• Diagnostic information stored in ECM memory can be
cleared as well as checked by using SUZUKI scan
tool or OBD generic scan tool (Euro OBD model).
Before using scan tool, read its Operator’s
(Instruction) Manual carefully to have good
understanding as to what functions are available and
how to use it.
It is indistinguishable which module turns on MIL
because not only ECM but also TCM (for A/T model)
turns on MIL (For details of on-board diagnostic
system for A/T model, refer to “On-Board Diagnostic
System Description in Section 5A”. Therefore, check
both ECM and TCM (for A/T model) for DTC when
MIL lights on.
When checking ECM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by ECM.
– OBD generic scan tool displays DTC detected by
each of ECM and TCM (for A/T model)
simultaneously.
• Priorities for diagnosing troubles
If two or more DTCs are stored, proceed to the DTC
flow which has been detected earliest in the order and
follow the instruction in that flow.
If no instructions are given, troubleshoot DTCs
according to the following priorities.
a. DTCs other than DTC P0171 / P0172 (Fuel
system too lean / too rich), DTC P0300 / P0301 /
P0302 / P0303 / P0304 (Misfire detected) and
DTC P0401 / P0402 (EGR flow malfunction)
b. DTC P0171 / P0172 (Fuel system too lean / too
rich) and DTC P0401 / P0402 (EGR flow
malfunction)
c. DTC P0300 / P0301 / P0302 / P0303 / P0304
(Misfire detected)
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Engine General Information and Diagnosis: For Petrol Engine Model 1A-2
• Be sure to read “Precautions for Electrical Circuit
Service in Section 00” before inspection and observe
what is written there.
• ECM replacement:
When substituting a known-good ECM, check for the
following conditions. Neglecting this check may cause
damage to a known-good ECM.
– Resistance value of all relays and actuators is as
specified respectively.
– MAP sensor, electric load current sensor (for J20
engine), A/C refrigerant pressure sensor (if
equipped with A/C), accelerator pedal position
(APP) sensor, TP sensor and CO adjust resistor (if
not equipped with A/F sensor) are in good condition
and none of power circuits of these sensors is
shorted to ground.
• Communication of ECM, BCM, combination meter,
keyless start control module (if equipped), ABS /
ESP
® control module, 4WD control module (if
equipped), steering angle sensor (if equipped) and
TCM (for A/T model) is established by CAN
(Controller Area Network). (For more detail of CAN
communication for ECM, refer to “CAN
Communication System Description: For Petrol
Engine Model”). Therefore, handle CAN
communication line with care referring to “Precaution
for CAN Communication System in Section 00”.
• Immobilizer transponder code registration after
replacing ECM:
When ECM is replaced with new one or with another
one, make sure to register immobilizer transponder
code with ECM correctly according to “Procedure after
ECM Replacement: For Petrol Engine Model in
Section 10C”.
Precautions for DTC Troubleshooting
S6JB0A1110003
• Before troubleshooting, be sure to read the
“Precautions of ECM Circuit Inspection: For Petrol
Engine Model”.
• 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: For Petrol Engine
Model”.
• Upon completion of inspection and repair work,
perform “DTC Confirmation Procedure” and confirm
that the trouble has been corrected.
Precautions of ECM Circuit Inspection
S6JB0A1110004
• ECM connectors are waterproofed. Each terminal of
the ECM connectors is sealed up with the grommet.
Therefore, when measuring circuit voltage, resistance
and/or pulse signal at ECM connector, do not insert
the tester’s probe into the sealed terminal at the
harness side. When measuring circuit voltage,
resistance and/or pulse signal at ECM connector,
connect the special tool to the ECM connectors. And,
insert the tester’s probe into the special tool’s
connectors at the harness side, and then measure
voltage, resistance and/or pulse signal. Or, ECM and
its circuits may be damaged by water.
• Wire colors of the special tool’s connectors are
different from the ones of the ECM connectors.
However, the circuit arrangement of the special tool’s
connectors is the same as the one of the ECM
connectors. Therefore, measure circuit voltage and
resistance by identifying the terminal location subject
to the measurement.
Precautions of Electric Throttle Body System
Calibration
S6JB0A1110005
After performing one of works described below, it is
necessary to re-register the completely closed throttle
valve reference position stored in memory of ECM. (For
detailed information, refer to “Description of Electric
Throttle Body System Calibration: For Petrol Engine
Model”.) For the procedure to register such data in ECM,
refer to “Electric Throttle Body System Calibration: For
Petrol Engine Model in Section 1C”.
• To shut off backup power of ECM for such purposes of
battery replacement or “DOME” fuse removal
• To erase DTCs P0122, P0123, P0222, P0223, P0607,
P2101, P2102, P2103, P2111, P2119, P2122, P2123,
P2127, P2128, P2135 and/or P2138
• To replace ECM
• To replace throttle body and/or accelerator pedal
position (APP) sensor assembly
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