Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 547

10C-49 Immobilizer Control System: For Diesel Engine Model

DTC B1713: Immobilizer Code Error

S6JB0AA324029

Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: For Diesel Engine Model”.

Detecting Condition and Trouble Area

NOTE
Troubleshoot DTC B1704 first if both B1704 and B1713 are detected at the same time.

Troubleshooting

Detecting Condition

Trouble Area

Verification error between ICM and ECM

• ICM
• ECM

Step

Action

Yes

No

1

Was “Immobilizer Control System Check” performed?

Go to Step 2.

Go to “Immobilizer
Control System Check:
For Diesel Engine
Model”.

2

Diagnostic Trouble Code (DTC) check
1) Check ECM for DTC referring to “DTC Check: For Diesel

Engine Model in Section 1A”.

2) Check ABS control module or ESP

®

control module for

DTC. For ESP

®

model, refer to “DTC Check in Section

4F”. For non-ESP

®

model, refer to “DTC Check in

Section 4E”.

3) Check BCM for DTC referring to “DTC Check in Section

10B”.

Is any DTC(s) detected?

Go to applicable DTC
diag. flow.

Go to Step 3.

3

ICM connector check
1) With the ignition key at OFF position, disconnect ICM

connector.

2) Check for proper connection at terminals and wires of

ICM connector. Refer to “Intermittent and Poor
Connection Inspection in Section 00”.

Is each terminal and wire connection normal?

Go to Step 4.

Repair poor
connection(s).

4

ECM connector check
1) With the ignition key at OFF position, disconnect ECM

connectors.

2) Check for proper connection at terminals and wires of

ECM connector. Refer to “Intermittent and Poor
Connection Inspection in Section 00”.

Is each terminal and wire connection normal?

Go to Step 5.

Repair poor
connection(s).

5

ICM power and ground circuit check
1) Check power and ground circuit of ICM referring to

“Inspection of Immobilizer Control Module (ICM) and Its
Circuit: For Diesel Engine Model”.

Is power and ground circuit of ICM normal?

Substitute a known-
good ICM and recheck.
If DTC B1702 is still
detected, substitute a
known-good ECM and
recheck.

Repair power and
ground circuit.

Immobilizer Control System: For Diesel Engine Model 10C-50

DTC B1714: Unregistered Code

S6JB0AA324030

Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: For Diesel Engine Model”.

Detecting Condition and Trouble Area

Troubleshooting
ECM does not registered with immobilizer control system. Perform “Procedure after ECM Replacement: For Diesel
Engine Model”.

DTC B1716: Keyless Start Control Module CAN Communication Error

S6JB0AA324031

NOTE
If DTC related to CAN failure is detected by ECM and BCM, first perform applicable DTC diag. flow.

Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: For Diesel Engine Model”.

Detecting Condition and Trouble Area

Troubleshooting

Detecting Condition

ECM have never been registered with immobilizer control system

DTC detecting Condition

Trouble Area

Reception error of communication data for keyless start
control module is detected for longer than specified time
continuously.

• CAN communication circuit
• Steering angle sensor (ESP

®

model)

• 4WD control module
• Keyless start control module (if equipped)
• ABS/ESP

®

control module

• Combination meter
• BCM
• ICM
• ECM

Step

Action

Yes

No

1

Was “Immobilizer Control System Check” performed?

Go to Step 2.

Go to “Immobilizer
Control System Check:
For Diesel Engine
Model”.

2

DTC check for ECM

Is DTC other than B1716 detected?

Go to applicable DTC
diag. flow.

Go to Step 3.

3

Control module connector check
1) With the ignition switch at OFF position, check

intermittent and poor connection of following each
connector referring to “Intermittent and Poor Connection
Inspection in Section 00”.
• ECM
• ABS / ESP

®

control module

• BCM
• Keyless start control module
• Combination meter
• 4WD control module
• ICM

Are all connectors in good condition?

Go to Step 4.

Repair malfunction part
and recheck.

10C-51 Immobilizer Control System: For Diesel Engine Model

DTC B1717: Unregistered Keyless Start Control Module

S6JB0AA324032

Circuit Description
B1717 is detected when ECM detects different ID codes registered in ECM and keyless control module after turning
engine start knob to ON position. Normally, when keyless start control module is replaced with new one, ECM
automatically registers the ID code in keyless start control module after turning ignition switch to ON position.
However, when keyless start control module is replaced with used one, ECM does not automatically register the ID
code in keyless start control module even if ignition switch is turned to ON position.

Detecting Condition and Trouble Area

Troubleshooting

4

CAN communication circuit check
1) Check for open, short and high resistance in CAN

communication circuit between ECM and keyless start
control module.

Is each CAN communication circuit in good condition?

Go to Step 5.

Repair circuit.

5

Check of keyless start control module power and
ground wire circuits
1) Check keyless start control module power and ground

wire circuits referring to “Keyless Start Control Module
Power and Ground Circuit Check in Section 10E”.

Are they in normal?

Substitute a known-
good keyless start
control module and
recheck.

Repair malfunctional
wire circuit.

Step

Action

Yes

No

DTC detecting Condition

Trouble Area

ECM detects different ID codes registered in ECM and
keyless start control module.

• Keyless start system wiring circuit
• Keyless start control module
• ECM

Step

Action

Yes

No

1

Was “Immobilizer Control System Check” performed?

Go to Step 2.

Go to “Immobilizer
Control System Check:
For Diesel Engine
Model”.

2

Registration of ECM
1) Register ECM to immobilizer control system referring to

“Procedure after ECM Replacement: For Diesel Engine
Model”.

Was registration of ECM to immobilizer control system
completed?

Recheck ECM for DTC. Go to Step 3.

3

DTC check for ECM
1) Check ECM for DTC referring to “Diagnostic Trouble

Code (DTC) Check: For Diesel Engine Model”.

Is DTC B1716 and/or B1718 detected other than B1717?

Go to DTC B1716
troubleshooting.

Go to DTC B1718
troubleshooting.

Immobilizer Control System: For Diesel Engine Model 10C-52

DTC B1718: Steering Lock Unit Communication Error

S6JB0AA324033

Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: For Diesel Engine Model”.

Circuit Description
When the verification code in the ECM is registered in immobilizer control system, the ID code is registered in both
ECM and keyless start control module at the same time. This DTC is detected only in case that the ID code cannot be
registered in both ECM and keyless start control module when the verification code in the ECM is registered in
immobilizer control system.

NOTE

• Troubleshoot DTC B1716 first if both DTC B1716 and B1718 are detected at the same time.
• After replacing ECM, be sure to perform “Procedure after ECM Replacement: For Diesel Engine

Model”. After replacing the keyless start control module, be sure to perform “Procedure after ECM
Replacement: For Diesel Engine Model”.

Detecting Condition and Trouble Area

Troubleshooting

DTC detecting Condition

Trouble Area

• While registering the verification code in the ECM in

immobilizer control system, the keyless start control
module sent a signal to ECM indicating that the ID code
could not be registered.

• The ID code could not be registered in the keyless start

control module or ECM.

• Wire circuits between steering lock unit and keyless

start control module faulty

• Steering lock unit
• CAN communication circuit
• Steering angle sensor (ESP

®

model)

• 4WD control module
• Keyless start control module (if equipped)
• ABS/ESP

®

control module

• Combination meter
• BCM
• ECM

Step

Action

Yes

No

1

Was “Immobilizer Control System Check” performed?

Go to Step 2.

Go to “Immobilizer
Control System Check:
For Diesel Engine
Model”.

2

Registration of ECM
1) Register ECM to immobilizer control system referring to

“Procedure after ECM Replacement: For Diesel Engine
Model”.

Was registration of ECM to immobilizer control system
completed?

Recheck ECM for DTC.
If DTC B1718 is still
detected, go to Step 3.

Go to Step 3.

3

DTC check

Is DTC other than B1718 detected?

Go to applicable DTC
diag. flow.

Go to Step 4.

4

DTC check for keyless start control module
1) Check Keyless start control module for DTC referring to

“DTC Check in Section 10E”.

Is DTC detected?

Go to applicable DTC
diag. flow.

Go to Step 5.