Suzuki Grand Vitara JB416 / JB420 / JB419. Service manual - part 85

1A-287 Engine General Information and Diagnosis: For Diesel Engine Model

Scan Tool Data

S6JB0A1124165

As the data values below are standard values estimated on the basis of values obtained from the normally operating 
vehicles by using a SUZUKI scan tool, use them as reference values. Even when the vehicle is in good condition, 
there may be cases where the checked value does not fall within each specified data range. Therefore, judgment as 
abnormal should not be made by checking with these data alone. Also, conditions that can be checked by the SUZUKI 
scan tool are those detected by ECM and output from ECM as commands and there may be cases where the engine 
or actuator is not operating (in the condition) as indicated by the SUZUKI scan tool.

NOTE

• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the 

neutral position and pull the parking brake fully. Also, if nothing or “no load” is indicated, turn OFF 
A/C, all electric loads and all the other necessary switches.

• For vehicle without diesel particulate filter, data with asterisk (*) below are not applicable.

 

Scan tool data

Vehicle condition

Normal condition / reference 

values

Engine Speed

At specified idle speed without engine load after 
warming up to normal operating temperature (ECT: 80 

°C, 176 °F – 85 °C, 185 °F)

750 – 850 RPM

Vehicle Speed

At stop

0 km/h

Coolant Temp

At specified idle speed without engine load after 
warming up to normal operating temperature

50 

°C – 100 °C, 122 °F – 212 °F

Intake Air Temp

At specified idle speed without engine load after 
warming up to normal operating temperature
(Environmental temperature: about 20 

°C, 68 °F)

–5 

°C, 23 °F environmental temp. 

to 35 

°C, 95 °F environmental 

temp.

Barometric Pres

—

Barometric pressure is displayed

Turbo Pressure

At specified idle speed without engine load after 
warming up to normal operating temperature

900 hPa – 1100 hPa, 900 mbar – 
1100 mbar

Battery Voltage

Ignition switch ON / engine at stop

9 V – 16 V

Pedal position

Ignition switch ON

0 – 100%

EGR position sensor

At specified idle speed without engine load after 
warming up to normal operating temperature

10% – 40%

MAF

At specified idle speed without engine load after 
warming up to normal operating temperature (EGR 
position: 0 – 40%)

260 mg/str – 520 mg/str

Fuel pressure

At specified idle speed without engine load after 
warming up to normal operating temperature

22000 kPa – 32000 kPa, 220 bar 
– 320 bar

Metering unit duty

At specified idle speed without engine load after 
warming up to normal operating temperature

35% – 45%

Differential pres*

At specified idle speed without engine load after 
warming up to normal operating temperature

5 hPa – 300 hPa, 5 mbar – 300 
mbar

Diesel PF in Temp*

At specified idle speed without engine load after 
warming up to normal operating temperature

150 

°C – 200 °C, 302 °F – 392 °F

Diesel PF out Temp*

At specified idle speed without engine load after 
warming up to normal operating temperature

~ 200 

°C, ~ 392 °F

Diesel PF soot mass*

At specified idle speed without engine load after 
warming up to normal operating temperature

~ 50 g

Distance from 
regeneration*

At specified idle speed without engine load after 
warming up to normal operating temperature

Value taken since the last 
dynamic regeneration (when 
driving)

A/C Config

At specified idle speed without engine load after 
warming up to normal operating temperature

Available

Water sensor Config

At specified idle speed without engine load after 
warming up to normal operating temperature

Available

Brake Switch

Ignition switch ON

Brake pedal is released

OFF

Brake pedal is depressed

ON

Clutch SW

Ignition switch ON

Clutch pedal is released

Engage

Clutch pedal is depressed

Disengage

Engine General Information and Diagnosis: For Diesel Engine Model 1A-288

Scan Tool Data Definitions
Engine Speed (RPM):  It is computed by reference pulses from the crankshaft position sensor.
Vehicle Speed (km/h):  It is computed based on pulse signals from rear wheel speed sensor (RH, LH).
Coolant Temp (engine coolant temperature, 

°C, °F):  It is detected by engine coolant temperature sensor.

Intake Air Temp (intake air temperature, 

°C, °F):  It is detected by intake air temperature sensor.

Barometric Pres (barometric pressure, hPa, mbar):  It is detected by barometric pressure sensor included into 

ECM.

Turbo Pressure (hPa, mbar):  This parameter indicates intake manifold pressure measured by boost pressure 

sensor.

Battery Voltage (V):  This parameter indicates battery positive voltage inputted to ECM.
Pedal position (accelerator pedal position, %):  When throttle position sensor is fully closed position, throttle 

opening is indicated as 0% and 100% full open position.

EGR position sensor (EGR solenoid valve Pulse Width Modulation, %):  This parameter indicates valve ON 

(valve open) time rate within a certain set cycle of EGR solenoid valve which controls the amount of EGR flow. 0% 
means that the EGR valve is completely closed while 100% is fully open valve.

MAF (mass air flow rate, mg/str (mg/stroke)):  It represents mass of air entering by one stroke to a cylinder which is 

measured by mass air flow sensor.

Fuel pressure (kPa, bar):  This parameter indicates fuel pressure in high pressure fuel circuit which is measured by 

fuel pressure sensor.

Metering unit duty (fuel flow actuator Pulse Width Modulation, %):  This parameter indicates fuel flow actuator 

opening rate which controls the amount of fuel flow.

Differential pres* (Diesel Particulate Filter differential pressure, hPa, mbar):  This parameter indicates the 

differential pressure on the diesel particulate filter upstream side and the downstream side. ECM judges the 
accumulative amount of soot, ash and etc. in diesel particulate filter by measuring the blocked condition of diesel 
particulate filter.

Diesel PF inlet Temp* (Diesel Particulate Filter upstream temperature (Exhaust gas temperature sensor 2) 

signal, 

°C, °F):  It is detected by exhaust gas temperature sensor 2 located on upstream of diesel particulate filter.

Diesel PF outlet Temp* (Diesel Particulate Filter outlet temperature (Exhaust gas temperature sensor 3) signal, 

°C, °F):  It is detected by exhaust gas temperature sensor 3 located on downstream of diesel particulate filter.

Diesel PF soot mass* (Weight of soot in Diesel Particulate Filter, g):  This parameter indicates weight of soot, ash 

and etc. in diesel particulate filter depending on differential pressure sensor signal.

Distance from regeneration* (km):  It represents how much distance (km) driven since last regeneration.
A/C Config (A/C configuration, (Unavailable, Available)):  Every vehicle indicates Available with or without 

equipment of A/C system.

Water sensor Config (Fuel filter water detection sensor configuration, (Unavailable, Available)):  Every vehicle 

indicates Available.

Brake Switch (Brake light switch, (ON,OFF)):  This parameter indicates the state of the brake switch.
Clutch SW (Clutch pedal position switch, (Disengage, engage)):  This parameter indicates the state of the clutch 

pedal position switch.

Cyl # FF Correction (Cylinder # fuel flow correction, mm3/str (mm3/stroke)):  This parameter indicates the 

amount of the correction from the reference value of the fuel oil consumption in each injector.

Turbo upstream Temp (Turbocharger upstream temperature (Exhaust gas temperature sensor 1) signal, 

°C, 

°F):  It is detected by exhaust gas temperature sensor 1 located on exhaust manifold.

Cyl 1 FF Correction

At specified idle speed without engine load after 
warming up to normal operating temperature

–1.0 mg/str – 1.0 mg/str

Cyl 2 FF Correction
Cyl 3 FF Correction
Cyl 4 FF Correction

Turbo upstream Temp.

At specified idle speed without engine load after 
warming up to normal operating temperature

100 

°C – 200 °C, 212 °F – 392 °F

Scan tool data

Vehicle condition

Normal condition / reference 

values

1A-289 Engine General Information and Diagnosis: For Diesel Engine Model

Visual Inspection

S6JB0A1124009

Visually check the following parts and systems.

Engine Basic Inspection

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This check is very important for troubleshooting when ECM has detected no DTC and no abnormality has been found 
in “Visual Inspection: For Diesel Engine Model”.
Follow the flow carefully.

Inspection item

Referring section

• Engine oil-level, leakage

“Engine Oil and Filter Change (Petrol Engine Model) 
in Section 0B”

• Engine coolant-level, leakage

“Coolant Level Check: For Diesel Engine Model in 
Section 1F”

• Fuel-level, leakage

“Fuel Lines and Connections Inspection in Section 0B”

• Air cleaner element-dirt, clogging

“Air Cleaner Filter Inspection in Section 0B”

• Battery-fluid level, corrosion of terminal

“Battery Description: For Diesel Engine Model in 
Section 1J”

• Water pump belt-tension damage

“Accessory Drive Belt Inspection: For Diesel Engine 
Model in Section 1J”

• Vacuum hoses of air intake system-disconnection, 

looseness, deterioration, bend

“Air intake Pipe Removal and Installation: For F9Q 
Engine in Section 1D” and “Vacuum Pump Removal 
and Installation: For F9Q Engine in Section 1D”

• Connectors of electric wire harness-disconnection, friction
• Fuses-burning
• Parts-installation, bolt-looseness
• Parts-deformation
• Other parts that can be checked visually
Also check the following items at engine start, if possible
• Malfunction indicator lamp-Operation

“Malfunction Indicator Lamp (MIL) Check: For Diesel 
Engine Model”

• Charge warning lamp-Operation

“Generator Symptom Diagnosis: For Diesel Engine 
Model in Section 1J”

• Engine oil pressure warning lamp-Operation

“Oil Pressure Switch Inspection in Section 9C”

• Engine coolant temp. meter-Operation
• Fuel level meter-Operation

“Fuel Level Sensor Inspection in Section 9C”

• Tachometer-Operation
• Abnormal air being inhaled from air intake system
• Exhaust system-leakage of exhaust gas, noise
• Other parts that can be checked visually

Step

Action

Yes

No

1

Check battery voltage

Is it 11 V or more?

Go to Step 2.

Charge or replace 
battery.

2

Is engine cranked?

Go to Step 3

Go to “Cranking System 
Symptom Diagnosis: 
For Diesel Engine 
Model in Section 1I”.

3

Does engine start?

Go to Step 4.

Go to Step 5.

4

Was the trouble symptom able to be confirmed?

Go to “Fault Finding-
Customer Complaints: 
For Diesel Engine 
Model”.

Go to Step 7 of “Engine 
and Emission Control 
System Check: For 
Diesel Engine Model”.

5

Check immobilizer system
Refer to “Immobilizer Control System Check: For Diesel 
Engine Model in Section 10C”.

Is it in good condition?

Go to “Fault Finding-
Customer Complaints: 
For Diesel Engine 
Model”.

Repair malfunction part.

Engine General Information and Diagnosis: For Diesel Engine Model 1A-290

DTC P0016: CKP – CMP Correlation

S6JB0A1124089

NOTE

• Conditions for applying fault finding procedures to stored faults: The fault becomes present after an 

attempt to start.

• If the fault is stored, erase the fault from the ECM memory. Turn OFF ignition switch, start the engine 

and check that the fault does not reappear.

• Use service wire for any operation on the ECM connectors.

 

Wiring Diagram
For wiring circuit and connector number, refer to “A-5 Engine and A/C Control System Circuit Diagram (DSL) in 
Section 9A”.

Detecting Condition

Troubleshooting

Displaying on SUZUKI scan tool

Detecting condition

D1

Inconsistency of signal

Check the CKP sensor and CMP sensor connections.
Check the ECM connections.
Repair if necessary.
Check the continuity and the absence of interference resistance with the connector disconnected from the 
following connections:
• Between “C08-1” wire of CMP sensor connector and “C86-18” terminal of ECM connector
• Between “C08-2” wire of CMP sensor connector and “C86-15” terminal of ECM connector
• Between “C20-1” wire of CKP sensor connector and “C86-17” terminal of ECM connector
• Between “C20-2” wire of CKP sensor connector and “C86-16” terminal of ECM connector
Repair if necessary.
With ignition switch ON and the CMP sensor connected: Use a voltmeter to measure the voltage across “C08-1” 
and “C08-3” wire of the CMP sensor connector:
The voltage displayed should be equal to the battery voltage –0.08 to 0.08 V.
• If the voltage is outside permitted tolerance values, take the measurement again on the connector, with the 

CMP sensor disconnected,

• If the voltage is still outside permitted tolerance values with the sensor disconnected.
Check the following connection for continuity and for the absence of interference resistance:
• Between “C08-3” wire of the CMP sensor connector and “E33-6” wire of main relay mounting connector
• If the measured voltage is correct with the sensor disconnected.
• Measure the resistance of the CMP sensor between “C08-2” and “C08-3” terminals.

Replace the CMP sensor if the resistance is not 9750 – 10750 

Ω at 20 °C, 68 °F

• Check that the CKP sensor is correctly mounted and that the flywheel target is not damaged.
• Check that the gap between the CKP sensor and the engine flywheel is 0.5 – 1.8 mm (0.020 – 0.017 in).
• Check the resistance of the CKP sensor between “C20-1” and “C20-2” terminals.

Replace the CKP sensor if its resistance is not 612 – 880 

Ω at 20 °C, 68 °F.