YH4
GRAND
VITARA
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-19
DTC13 NO TRANSPONDER CODE TRANSMITTED OR
COIL ANTENNA OPENED/SHORTED
(CONTINUED)
STEP ACTION YES NO
8 Poor A1 or A2 connection.
1) If connections are OK, connect
Immobilizer Control Module
coupler and substitute a known-
good coil antenna.
2) Is DTC 13 also indicated with
ignition switch turned ON?
Go to Step 9. Faulty coil antenna.
9 Is DTC 13 still indicated even when
another ignition key (with built-in
transponder) for that vehicle used?
Substitute a known-good Immobilizer
Control Module and recheck.
NOTE:
After replacing with a known-good
Immobilizer Control Module, register
ECM/Immobilizer Control Module code
in ECM/PCM and Transponder code
and ECM/Immobilizer Control Module
code in Immobilizer Control Module by
performing procedure described in
“Procedure after Immobilizer Control
Module Replacement” section.
Faulty ignition key.
1. Coil antenna
coupler
1
1. Coil antenna
coupler
1
A
B
Fig. 1 for Step 1
Ignition key with built-in
transponder
Fig. 2 for Step 2 Fig. 3 for Step 3
Fig. 4 for Step 4
Fig. 5 for Step 5 Fig. 6 for Step 6
1. Immobilizer Control
Module coupler
1
A1
A2
A1
1
1. Immobilizer Control
Module coupler
1. Immobilizer Control
Module coupler
A2
1
Fig. 7 for Step 7
1. Immobilizer Control Module coupler
A1
1
A2
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