Suzuki Grand Vitara 2011 Manual page 2164

10C-9 Immobilizer Control System: For Petrol Engine Model
Immobilizer Indicator Lamp Remains ON after Engine Start
Wiring Diagram
Refer to "Immobilizer Control System Wiring Circuit Diagram: For Petrol Engine Model".
Circuit Description
When the ignition switch is turned ON, ECM transmits the indication ON signal to the combination meter to turn ON the
immobilizer indicator lamp in case that there is not any problem with the immobilizer control system. Then, the
combination meter turns ON the lamp. When the engine is started up, ECM transmits the indication OFF signal to the
combination meter to turn OFF the lamp. Then, the combination meter turns OFF the immobilizer indicator lamp.
However, in case that there is some trouble with the immobilizer control system, the immobilizer indicator lamp flashes
ON and OFF when the ignition switch is turned ON.
Troubleshooting
Step
1 Diagnostic Trouble Code (DTC) check
1) Start engine.
2) Check if any DTC is detected by ECM referring to
"Diagnostic Trouble Code (DTC) Check: For Petrol
Engine Model".
Is any DTC detected?
2 CAN communication wire circuits check
1) Check CAN communication wire circuits between
combination meter and ECM referring to "DTC P1674:
CAN Communication (Bus Off Error): For Petrol Engine
Model in Section 1A".
Are wire circuits in good condition?
DTC P1614: Transponder Response Error
Wiring Diagram
Refer to "Immobilizer Control System Wiring Circuit Diagram: For Petrol Engine Model"
Detecting Condition and Trouble Area
Detecting Condition
Transponder code in the transponder built in the ignition
key cannot be read through immobilizer control module
(ICM).
Action Yes
Go to "Immobilizer
Control System Check:
For Petrol Engine
Model".
Replace combination
meter with a known-
good one and recheck.
If the immobilizer
indicator lamp remains
OFF, replace ECM with
a known-good one and
recheck.
Trouble Area
• Use of the ignition key without the transponder
• Use of the unregistered ignition key
• Corruption of the transponder in the ignition key
• Immobilizer control module (ICM) faulty
• ECM faulty
S6JB0AA314007
No
Go to Step 2.
Repair the malfunctional
wire circuit.
S6JB0AA314008