Control Module; Dtc11 Transponder Code Not Matched; Dtc31 Transponder Code Not Registered; Dtc12 Fault In Immobilizer Control Module - Suzuki Grand Vitara XL-7 Service Manual

DTC11 TRANSPONDER CODE NOT MATCHED

DTC31 TRANSPONDER CODE NOT REGISTERED

DESCRIPTION:
Immobilizer Control Module checks if Transponder code transmitted from ignition key and that registered in Immo-
bilizer Control Module match when ignition switch is ON. If they do not, DTC 11 and 31 are set.
INSPECTION:
STEP
1 Was "Immobilizer Diag. Flow Table"
performed?
2 Check that knob shape of ignition key being
used is the same as shown in Fig. 1.
Is it ignition key with built-in transponder?
3 Read DTC according to "Diagnostic
Trouble Code Check" section.
Does Suzuki scan tool indicate DTC 11
and/or 31 again?
Fig. 1 for Step 2
Ignition key with built-in
transponder

DTC12 FAULT IN IMMOBILIZER CONTROL MODULE

DESCRIPTION:
This DTC is set when an internal fault is detected in Immobilizer Control Module.
INSPECTION:
STEP
1 Was "Immobilizer Diag. Flow Table"
performed?
2 1) Ignition switch OFF.
2) Disconnect connectors from Immobilizer

Control Module.

3) Check for proper connection to
Immobilizer Control Module at all
terminals.
Are they in good condition?
ACTION
ACTION
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-11
YES
Go to Step 2.
Register ignition key in
immobilizer control module
according to the procedure
described in "How to Register
Ignition Key". And then go to
Step 3.
Replace ignition key.
YES
Go to Step 2.
Substitute a known-good
Immobilizer Control Module
and recheck.
NO
Go to "Immobilizer
Diag. Flow Table".
Replace ignition key.
Go to "Immobilizer
Diag. Flow Table".
NO
Go to "Immobilizer
Diag. Flow Table".
Repair or replace.