Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 83
1A-279 Engine General Information and Diagnosis: For Diesel Engine Model
Engine and Emission Control System Check
S6JB0A1124004
Refer to the following items for the details of each step.
Step
Action
Yes
No
1
Customer complaint analysis
1) Perform customer complaint analysis referring to “Step
1: Customer Complaint Analysis: For Diesel Engine
Model”.
Was customer complaint analysis performed?
Go to Step 2.
Perform customer
complaint analysis.
2
Visual inspection
1) Perform visual inspection referring to “Step 2: Visual
Inspection: For Diesel Engine Model”.
Is there any faulty condition?
Repair or replace
malfunction part, and go
to Step 3.
Go to Step 3.
3
DTC check, record and clearance
1) Check for DTC referring to “Step 3: DTC Check, Record
and Clearance: For Diesel Engine Model”.
Is there any DTC(s)?
Record and clear DTC
referring to “DTC
Clearance: For Diesel
Engine Model” and go
to Step 5.
Go to Step 4.
4
Engine basic inspection and fault finding – customer
complaints
1) Check and repair according to “Step 4: Engine Basic
Inspection and Fault Finding-Customer Complaints: For
Diesel Engine Model”.
Is there any faulty condition?
Repair or replace
malfunction part and
then go to Step 8.
Go to Step 8.
5
Recheck DTC
1) Recheck DTC referring to “Step 5: Recheck DTC: For
Is there any DTC(s)?
Go to Step 6.
Go to Step 7.
6
Troubleshooting for DTC
1) Check and repair according to applicable DTC diag. flow
referring to “Step 6: Troubleshooting for DTC (See each
DTC Diag. Flow): For Diesel Engine Model”.
Is there any faulty condition?
Repair or replace
malfunction part and
then go to Step 8.
Go to Step 7.
7
1) Check for intermittent problems referring to “Step 7:
Intermittent Problems Check: For Diesel Engine Model”.
Is there any faulty condition?
Repair or replace
malfunction part(s), and
go to Step 8.
Go to Step 8.
8
Final confirmation test
1) Clear DTC if any.
2) Perform final confirmation test referring to “Step 8: Final
Confirmation Test: For Diesel Engine Model”.
Is there any problem symptom, DTC or abnormal condition?
Go to Step 5.
End.
Engine General Information and Diagnosis: For Diesel Engine Model 1A-280
Step 1: Customer Complaint Analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer. For this purpose,
use of such an inspection form will facilitate collecting information to the point required for proper analysis and
diagnosis.
Customer problem inspection form (Example)
NOTE
The form is a standard sample. It should be modified according to conditions characteristic of each
market.
I2RH01110010-02
1A-281 Engine General Information and Diagnosis: For Diesel Engine Model
Step 2: Visual Inspection
As a preliminary step, be sure to perform visual check of
the items that support proper function of the engine
referring to “Visual Inspection: For Diesel Engine Model”.
Step 3: DTC Check, Record and Clearance
First, check DTC, referring to “DTC Check: For Diesel
Engine Model”. If DTC is indicated, record and clear
DTC by referring to “DTC Clearance: For Diesel Engine
Model”.
Attempt to diagnose a trouble based on DTC in this step
only or failure to clear the DTC in this step will lead to
incorrect diagnosis, trouble diagnosis of a normal circuit
or difficulty in troubleshooting.
Step 4: Engine Basic Inspection and Fault Finding-
Customer Complaints
Perform basic engine check according to “Engine Basic
Inspection: For Diesel Engine Model” first. When the end
of the flow table has been reached, check the parts of
the system suspected as a possible cause referring to
“Fault Finding-Customer Complaints: For Diesel Engine
Model” and based on symptoms appearing on the
vehicle (symptoms obtained through steps of customer
complaint analysis, trouble symptom confirmation and/or
basic engine check) and repair or replace faulty parts, if
any.
Step 5: Recheck DTC
Refer to “DTC Check: For Diesel Engine Model” for
checking procedure.
Step 6: Troubleshooting for DTC (See each DTC
Diag. Flow)
Based on the DTC indicated in Step 5 and referring to
the applicable DTC diag. flow, locate the cause of the
trouble, namely in a sensor, switch, wire harness,
connector, actuator, ECM or other part and repair or
replace faulty parts.
Step 7: Intermittent Problems Check
Check parts where an intermittent trouble is easy to
occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connection Inspection in Section
00” and related circuit of DTC recorded in Step 2.
Step 8: Final Confirmation Test
Confirm that the problem symptom has gone and the
engine is free from any abnormal conditions. If what has
been repaired is related to the DTC, clear the DTC once
and then recheck DTC and confirm that no DTC is
indicated.
DTC Check
S6JB0A1124005
1) Prepare SUZUKI scan tool or OBD generic scan
tool.
2) Connect it to data link connector (DLC) (1) located
on underside of instrument panel at driver’s seat
side.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch ON.
4) Read DTC, according to instructions displayed on
scan tool and print them or write them down. Refer to
scan tool operator’s manual for further details.
If communication between scan tool and ECM is not
possible, check if scan tool is communicable by
connecting it to ECM in another vehicle.
If communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch OFF
and disconnect scan tool from data link connector.
DTC Clearance
S6JB0A1124006
NOTE
In case that DTC P0606 D6 can not be cleared
according to this procedure, clear DTC by
specified procedure described in “DTC
P0606: ECM Processor: For Diesel Engine
Model”.
1) Connect SUZUKI scan tool to data link connector in
the same manner as when making this connection
for DTC check.
2) Turn ignition switch OFF and then ON (but engine at
stop).
3) Erase DTC according to instructions displayed on
scan tool. Refer to scan tool operator’s manual for
further details.
4) After completing the clearance, turn ignition switch
OFF and disconnect scan tool from data link
connector.
(A)
1
I5JB0A110019-01
Engine General Information and Diagnosis: For Diesel Engine Model 1A-282
DTC Table
S6JB0A1124007
NOTE
For vehicle without diesel particulate filter, DTCs with asterisk (*) in table below are not detected.
DTC No.
(SUZUKI scan
tool)
Detecting Item
Detecting Condition
(DTC will set when detecting:)
P0016
CKP – CMP Correlation
CMP sensor signal frequency above a given
threshold.
P0033
Boost Pressure Control Solenoid Valve
Control Circuit
• Boost pressure control solenoid valve circuit
shorted to ground circuit
• Boost pressure control solenoid valve circuit
open or shorted to power circuit
P0089
Fuel Flow Actuator Performance
Fuel flow actuator control signal low or high input
P0100
Mass or Volume Air Flow Circuit
• MAF sensor circuit shorted to ground circuit
• MAF sensor circuit open or shorted to power
circuit
• Poor performance of MAF sensor
P0105
Barometric Pressure Circuit
Barometric pressure is lower or higher than
specification
P0110
IAT Sensor Circuit
IAT sensor 1 signal low or high input
P0115
ECT Circuit
ECT sensor signal low or high input
P0190
Fuel Pressure Sensor Circuit
• Fuel pressure sensor signal low or high input
• Poor performance of fuel pressure sensor
P0201
Fuel Injector No.1 Circuit
Fuel injector No.1 control signal circuit open or
short
P0202
Fuel Injector No.2 Circuit
Fuel injector No.2 control signal circuit open or
short
P0203
Fuel Injector No.3 Circuit
Fuel injector No.3 control signal circuit open or
short
P0204
Fuel Injector No.4 Circuit
Fuel injector No.4 control signal circuit open or
short
P0225
APP Sensor (Main) Circuit
• Accelerator pedal position (APP) sensor (main)
circuit shorted to ground circuit
• Accelerator pedal position (APP) sensor (main)
circuit open or shorted to power circuit
• Poor performance of Accelerator pedal position
(APP) sensor (main)
P0235
Boost Pressure Sensor Circuit
Boost pressure sensor signal low or high input
P0243
Boost Pressure Malfunction
Boost pressure out of specification
P0297
Vehicle Overspeed Condition
The vehicle was running while the after-sales
regeneration was in progress.
P0301
Cylinder No.1 Misfire Detected
Detection of engine speed fluctuation (problem on
cylinder No.1)
P0302
Cylinder No.2 Misfire Detected
Detection of engine speed fluctuation (problem on
cylinder No.2)
P0303
Cylinder No.3 Misfire Detected
Detection of engine speed fluctuation (problem on
cylinder No.3)
P0304
Cylinder No.4 Misfire Detected
Detection of engine speed fluctuation (problem on
cylinder No.4)
P0335
CKP Sensor Circuit
Crankshaft position sensor signal not inputted or
incorrect signal inputted
P0340
CMP Sensor Circuit
Camshaft position sensor signal not inputted or
inconsistent signal inputted
P0380
Glow Plug Control Module Circuit
Glow plug control signal low or high input
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