Dtc13 No Transponder Code Transmitted From Ignition Key; Dtc14 Coil Antenna Circuit Malfunction - Suzuki Grand Vitara XL-7 Service Manual

8G-12 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)

DTC13 NO TRANSPONDER CODE TRANSMITTED FROM IGNITION KEY

DTC14 COIL ANTENNA CIRCUIT MALFUNCTION

DESCRIPTION:
Immobilizer Control Module energizes the coil antenna when the ignition switch is ON and reads Transponder code
from the ignition key. When Immobilizer Control Module cannot read Transponder code from the ignition key even
when the coil antenna is energized, DTC 13 and 14 are set.
INSPECTION:
STEP
1 Was "Immobilizer Diag. Flow Table"
performed?
2 1) Disconnect coil antenna coupler with
ignition switch turned OFF.
2) Is there continuity between coil antenna
coupler terminals G08-1 and G08-3?
(See Fig. 1)
3 Measure resistance between terminals of coil
antenna coupler and body ground.
(See Fig. 2)
Is it R (infinity) Ω ?
4 Poor G08-1 or G08-3 connection.
1) If connections are OK, substitute a known-
good coil antenna.
2) Is DTC 13 and/or 14 also indicated with
ignition switch turned ON?
Fig. 1 for Step 2
1. Coil antenna coupler
ACTION
Fig. 2 for Step 3
YES
Go to Step 2.
Go to Step 3.
Go to Step 4.
Substitute a known-good
Immobilizer Control
Module and recheck.
1. Coil antenna coupler
1. Immobilizer Control Module
2. Coil antenna
NO
Go to "Immobilizer Diag.
Flow Table".
Coil antenna open.
Coil antenna shorted to
ground.
Faulty coil antenna.