Diagnostic Information And Procedures; Immobilizer Control System Check - Suzuki GRAND VITARA Owner's Manual

1. Battery 6. Data link connector (DLC)
2. Fuse 7. ECM
3. Ignition switch 8. ABS control module
4. Junction block assembly 9. Junction connector
5. Immobilizer control 10. Steering lock unit
module (ICM)

Immobilizer Control System Check

Step
1 Immobilizer indicator lamp ON check
1) Turn ignition switch to ON position using ignition key.
Does immobilizer indicator lamp (1) come on?
2 Immobilizer indicator lamp flash check
Does immobilizer indicator lamp flash on and off
continuously in Step 1?
3 Engine start check
1) Start engine using ignition key.
Does engine start?
4 Immobilizer indicator lamp remain ON check
1) Check if immobilizer indicator lamp remains ON after
engine start.
Does immobilizer indicator lamp remain ON after engine
start?
11. Keyless start control module
12. Combination meter
13. From fuse
14. BCM
15. Combination meter connector (harness
side view)

Diagnostic Information and Procedures

Action
1
Immobilizer Control System:
Yes
Go to Step 2.
I5JB0AA30004-01
Check what DTC is
detected by ECM
referring to "Diagnostic
Trouble Code (DTC)
Check: ". Then, perform
the troubleshooting
referring to the
corresponding flowchart
in this section.
Go to Step 4.
Go to "Immobilizer
Indicator Lamp
Remains ON after
Engine Start: ".
16. Immobilizer control module (ICM) connector
(harness side view)
17. BCM connector (harness side view)
18. ABS control module connector (harness side
view)
19. Keyless start control module connector
(harness side view)
20. ECM connectors (harness side view)
No
Check if DTC P1636
and/or P1638 are
detected by ECM
referring to "Diagnostic
Trouble Code (DTC)
Check: ". If detected,
perform the
troubleshooting
referring to the
corresponding flowchart
in this section. If not
detected, go to
"Immobilizer Indicator
Lamp Does Not Come
ON with Ignition Switch
ON and Engine Stop: ".
Go to Step 3.
Perform "Engine and
Emission Control
System Check: in
Section 1A".
Immobilizer control
system is in good
condition. Then, go to
"Keyless Start System
Check: in Section 10E"
for the vehicle with
keyless start system.
10C-5
S5JB0AA304001