8G-10 IMMOBILIZER CONTROL SYSTEM
1. Immobilizer diagnostic coupler
EXAMPLE : COIL ANTENNA FAILURE (CODE NO.13)
Voltmeter indicator
NORMAL (No code)
Voltmeter indicatorTIME (sec.)
TIME (sec.) CODE No. 13CODE No. 13CODE No. 13
High
Low
High
Low
1. Monitor coupler
2. Service wire
A: Diagnosis switch
terminal
B: Ground terminal
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
(IMMOBILIZER CONTROL MODULE)
1) Using analog type voltmeter, connect positive probe to diagnos-
tic output terminal and negative probe to ground of immobilizer
diagnostic coupler with ignition switch turned ON.
2) Read deflection of voltmeter indicator which represents DTC as
shown in example below and write it down. For details of DTC,
refer to Immobilizer Control Module side in “Diagnostic Trouble
Code Table”.
If voltmeter indicator dose not deflect, go to “Diagnostic Flow
Table A”.
NOTE:
If abnormality or malfunction lies in two or more areas, volt-
meter indicates applicable codes three times each.
DIAGNOSTIC TROUBLE CODE (DTC) CHECK (ECM)
[Not using SUZUKI scan tool] (Vehicle equipped with
monitor coupler)
1) Using service wire, ground diagnostic switch terminal in monitor
coupler.
2) Read DTC from flashing pattern of malfunction indicator lamp as
shown in example below and write it down. For details of DTC,
refer to ECM side in “Diagnostic Trouble Code Table”.
If lamp remains ON, go to “Malfunction Indicator Lamp Check”
in Section 6.
NOTE:
If abnormality or malfunction lies in two or more areas, mal-
function indicator lamp indicates applicable codes three
times each.
And flashing of these codes is repeated as long as diagno-
sis terminal is grounded and ignition switch is held at ON
position.
8G-12 IMMOBILIZER CONTROL SYSTEM
EXAMPLE: COIL ANTENNA FAILURE (CODE NO.13)
EXAMPLE: NORMAL
Voltmeter Indicator
Voltmeter IndicatorHigh
Low
High
LowCODE No. 13 CODE No. 13 CODE No. 13
DIAGNOSTIC TROUBLE CODE TABLE
Immobilizer Control Module
DIAGNOSTIC TROUBLE CODEDIAGNOSTIC AREADIAGNOSISNO.VOLTMETER INDICATIONDIAGNOSTIC AREADIAGNOSIS
–NormalThis code appears when none of the other
codes are identified.
11
Transponder code
31
Transponder code
12Immobilizer Control Module
Di t bl di t
13Coil antenna or ignition key with
built-in transponderDiagnose trouble according to
“DIAGNOSTIC FLOW TABLE”
corresponding to each code No
21ECM / Immobilizer Control
Module code
corres onding to each code No.
22Ignition switch circuit
23Serial data link wire
Engine Control module (ECM)
DTC
(indicated on
Suzuki
scan tool)DTC
(indicated
by MIL)Malfunction Indicator lamp
(MIL) flashing patternDIAGNOSTIC AREADIAGNOSIS
NO DTC12Normal
This code appears when it is
confirmed that none of other
trouble codes is set for
immobilizer control system or
engine and emission control
system.
P162381ECM / Immobilizer
P162084Control Module codeDiagnose trouble according to
“DIAGNOSTIC FLOW TABLE”
P162282ECMcorresponding to each code
No.
P162183Serial data link wire
