Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 115

1C-20 Engine Electrical Devices: For Petrol Engine Model

3) Remove fuse block cover.
4) Disconnect connector from electric load current 

sensor.

5) Remove electric load current sensor (1) from fuse 

box No.1 (2).

Installation
Reverse removal procedure noting the following.
• Install battery referring to “Battery Dismounting and 

Remounting: For Petrol Engine Model in Section 1J”.

Specifications

Tightening Torque Specifications

S6JB0A1317001

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fastener Information in Section 0A”.

1

2

I5JB0A130011-01

Fastening part

Tightening torque

Note

N

⋅m

kgf-m

lb-ft

Accelerator pedal position (APP) sensor 
assembly nut

6.0

0.6 4.5

)

APP sensor assembly bracket nut

6.0

0.6 

4.3

)

ECT sensor

12.5

1.25 

9.0

)

A/F sensor 

45

4.5 

32.5

)

Heated oxygen sensor

45

4.5 

32.5

)

CMP sensor bolt 

11

1.1 

8.0

)

CKP sensor bolt

11

1.1 

8.0

)

CKP sensor bolt 

10

1.0 

7.5

)

Knock sensor

22

2.2 

16.0

)

MAF and IAT sensor screw

1.5

0.15 

1.1

)

Engine Electrical Devices: For Diesel Engine Model 1C-21

For Diesel Engine Model

Precautions

Precaution in Replacing ECM

S6JB0A1320001

NOTE
Vehicle information with asterisk (*) below 
are not applicable to vehicle without diesel 
particulate filter.

 

• If ECM is replaced with new one or a used one, the 

engine cannot be started unless the key verification 
code stored in ECM is registered in the immobilizer 
control system.
Also, the following vehicle information are registered 
in ECM in addition of the key verification code.

After replacing ECM, register these information to new 
ECM according to “Registration Procedure for the 
ECM: For Diesel Engine Model”.
– Fuel injector calibration codes
– EGR/Inlet throttle valve data
– Diesel PF (Diesel Particulate Filter) data*

• If ECM is replaced with new or used one without the 

function of the immobilizer control system, the engine 
will not be started.
In case of the above-mentioned, check if the newly 
installed ECM has the function of the immobilizer 
control system referring to its part number.

General Description

Description of ECM Registration

S6JB0A1321001

NOTE
Vehicle information with asterisk (*) below are not applicable to vehicle without diesel particulate filter.

 

The following vehicle information is registered in ECM.
• Fuel injector calibration codes
• EGR/Inlet throttle valve data
• Diesel PF (Diesel Particulate Filter) data*
• Key verification code (for immobilizer control system)
If the following parts are replaced or ECM is reprogrammed, register the above-mentioned information in ECM as 
below table.

Service

Part

Registered data

Reference

Replace

ECM

• Fuel injector calibration codes
• EGR/Inlet throttle valve data
• Diesel PF (Diesel Particulate Filter) 

data*

• Key verification code

Go to “Registration Procedure for the 
ECM: For Diesel Engine Model”.

Fuel injector(s)

Fuel injector calibration code(s)

Go to “Registration Procedure for the Fuel 
Injector Calibration Code: For Diesel 
Engine Model”.

EGR valve

EGR valve data

Go to “EGR Valve Data Initialization: For 
Diesel Engine Model”.

Inlet throttle valve Inlet throttle valve data

Go to “Inlet Throttle Valve Data 
Initialization: For Diesel Engine Model”.

Diesel Particulate 
Filter*

Diesel PF (Diesel Particulate Filter) data* Go to “Diesel Particulate Filter Data 

Initialization: For Diesel Engine Model”.

Reprogram

ECM

Key verification code

Go to “Registration Procedure for the 
ECM: For Diesel Engine Model”.

1C-22 Engine Electrical Devices: For Diesel Engine Model

Repair Instructions

Idle Speed Inspection

S6JB0A1326001

1) Shift transmission into Neutral.
2) Start engine and warm it up to normal operating 

temperature.

3) Turn all electrical loads OFF.
4) Using SUZUKI scan tool, verify that idle speed is 

within specification.

Engine idle speed
: 750 – 850 rpm

5) If not, refer to “SUZUKI Scan Tool Operator’s 

Manual.

Engine Control Module (ECM) Removal and 
Installation

S6JB0A1326002

CAUTION

!

 

As ECM consists of precision parts, be 
careful not to expose it to excessive shock.

 

Removal

NOTE
When ECM is replaced, register vehicle 
specification (Fuel injector calibration code 
register, EGR/Inlet throttle valve data register 
and Diesel PF (Diesel Particulate Filter) data 
register) into ECM referring to “Description 
of ECM Registration: For Diesel Engine 
Model”.

 

1) Disconnect negative cable at battery.
2) Remove ECM cover.
3) Disconnect connectors from ECM in order of “E66”, 

“C85” and “C86” as follows.
a) Push lock (1) to release locking of lock lever (2).

b) Turn the lock lever to arrow direction until it 

stops.

4) Remove ECM (1) from ECM bracket (2).

Installation
Reverse removal procedure for installation.

Registration Procedure for the ECM

S6JB0A1326005

NOTE
For vehicle without diesel particulate filter, 
vehicle information with asterisk (*) below 
need no registration.

 

For ECM Replacement
Using SUZUKI scan tool, be sure to register the 
following vehicle information from old ECM to new or 
substitute ECM as follows.
• Fuel injector calibration codes
• EGR/Inlet throttle valve data
• Diesel PF (Diesel Particulate Filter) data*
• Key verification code (for immobilizer control system)

NOTE

• For further details of SUZUKI scan tool, 

refer to its operator’s manual.

• If these vehicle information cannot be read 

from old ECM, register/initialize them 
according to “Registration Procedure for 
the Fuel Injector Calibration Code: For 
Diesel Engine Model”, “EGR Valve Data 
Initialization: For Diesel Engine Model”, 
“Diesel Particulate Filter Data Initialization: 
For Diesel Engine Model” and “Procedure 
after ECM Replacement: For Diesel Engine 
Model in Section 10C”.

 

“C85”

“C86”

“E66”

1

2

2

I5JB0B130001-03

1

2

I5JB0B130002-01

Engine Electrical Devices: For Diesel Engine Model 1C-23

1) Register fuel injector calibration codes as follows.

a) Connect SUZUKI scan tool to DLC with ignition 

switch OFF.

b) Turn IG switch to ON position.
c) Select “Replace ECM” of “ECM Setting” under 

“Miscellaneous test” (“Misc test”) mode of 
SUZUKI scan tool

d) Read fuel injector calibration codes from old 

ECM by performing “IMA code register”.

e) Replace old ECM with new or substitute ECM 

referring to “Engine Control Module (ECM) 
Removal and Installation: For Diesel Engine 
Model”.

f) Register injector calibration codes to new or 

substitute ECM by performing “IMA code 
register”.

g) Turn ignition switch to OFF position, and wait 40 

seconds or more.

2) Register the EGR/Inlet throttle valve data and Diesel 

PF (Diesel Particulate Filter) data* respectively in the 
same manner as step 1) by selecting “EGR Valve 
Data Initialization: For Diesel Engine Model” and 
“Diesel Particulate Filter Data Initialization: For 
Diesel Engine Model”.

3) Register key verification code into ECM referring to 

“Procedure after ECM Replacement: For Diesel 
Engine Model in Section 10C”.

For ECM Reprogram

1) Perform ECM reprogramming. (Refer to “Suzuki 

Pass-Thru Reprogramming Tool Operator’s 
Manual”.)

2) Register key verification code to reprogrammed 

ECM referring to “Procedure after ECM 
Replacement: For Diesel Engine Model in Section 
10C”.

NOTE
Once ECM reprogramming is failed, vehicle 
information (fuel injector calibration codes, 
EGR/Inlet throttle valve data and Diesel PF 
(Diesel Particulate Filter) data*) is cleared 
from ECM.
In this case, after ECM reprogramming is 
successful, register/initialize them according 
to “Registration Procedure for the Fuel 
Injector Calibration Code: For Diesel Engine 
Model”, “EGR Valve Data Initialization: For 
Diesel Engine Model”, “Diesel Particulate 
Filter Data Initialization: For Diesel Engine 
Model”, and “Procedure after ECM 
Replacement: For Diesel Engine Model in 
Section 10C”.

 

Registration Procedure for the Fuel Injector 
Calibration Code

S6JB0A1326006

After one or more fuel injector(s) is replaced, register the 
fuel injector calibration code of each fuel injector 
manually, by reading the fuel injector calibration code on 
each fuel injector using SUZUKI scan tool (Refer to 
“SUZUKI Scan Tool Operator’s Manual”).

EGR Valve Data Initialization

S6JB0A1326025

1) Connect SUZUKI scan tool to data link connector 

(DLC) (1) with ignition switch OFF.

Special tool
(A):  SUZUKI scan tool 

2) Turn ignition switch ON position and select “ECM 

setting” under “Miscellaneous test” (“MISC TEST”) 
mode of SUZUKI scan tool.

3) Perform “Initialize EGR valve data” on scan tool.
4) Turn ignition switch to OFF position and wait 40 

seconds.

5) Turn ignition switch to ON position and then start 

engine for programming latest EGR valve offset.

6) Turn ignition switch to OFF position and wait 120 

seconds.

(A)

1

I5JB0A110019-01