Suzuki GA413, Service Manual

Page: 971 / 1246

TABLE A DTC IS NOT OUTPUT FROM DIAGNOSTIC OUTPUT TERMINAL
1. Main fuse
2. Main relay
3. Immobilizer Control Module
4. Immobilizer diagnostic coupler
4-1. Ground terminal
4-2. Diagnostic output terminal
5. To ECM
8G-12 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)
GA413
supple
STEP ACTION YES NO
1 Check voltage between E64-2 terminal
and body ground with ignition switch
turned ON.
Is it 10 – 14V?
Go to Step 2. “B/R” wire open.
2 1) Connect voltmeter between E64-10
terminal and body ground.
2) Does voltmeter indicator deflect?
Go to Step 3. Poor E64-2, E64-10 or E64-8 con-
nection.
“B” wire of E64-8 terminal open.
“B/G” wire between E64-10 terminal
and diagnostic output terminal of im-
mobilizer diagnostic coupler short.
If wire and connections are OK, sub-
stitute a known-good Immobilizer
Control Module and recheck.
NOTE:
After replacing with a known-good
Immobilizer Control Module, regis-
ter ECM/Immobilizer Control Mod-
ule code in ECM and Transponder
code and ECM/Immobilizer Control
Module code in Immobilizer Control
Module by performing procedure
described in “Procedure After Im-
mobilizer Control Module Replace-
ment”.
3 1) Connect voltmeter between diagnostic
output terminal of immobilizer diagnos-
tic coupler and body ground.
2) Is it possible to read DTC by checking
deflection of voltmeter indicator?
“B” wire of ground
terminal for immobi-
lizer diagnostic cou-
pler open.
“B/G” wire between E64-10 terminal
and diagnostic output terminal of im-
mobilizer diagnostic coupler open.