IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-7
IMMOBILIZER DIAGNOSTIC FLOW TABLE
NOTE:
After replacing with Immobilizer Control Module and/or ECM, register transponder code and ECU code ac-
cording to “Procedure after Immobilizer Control Module Replacement” or “Procedure after ECM Replace-
ment”. Otherwise, the accurate trouble diagnosis will not be assured.
STEP
ACTION YES NO
1 Turn ignition switch to start engine.
Dose engine run?
Immobilizer control system
is in good condition.
Go to Step 2.
2 Check DTC stored in immobilizer
control module referring to
“DIAGNOSTIC TROUBLE CODE
CHECK”.
Are there DTC Nos 13 and/or 14?
Go to flow table for DTC No. Go to Step 3.
3 Is there DTC No.12? Go to flow table for DTC No. Go to Step 4.
4 Are there DTC Nos 11 and/or 31? Go to flow table for DTC No. Go to Step 5.
5 Are there DTC No.41, 42 or 43? Go to flow table for DTC No. Substitute a known-good
immobilizer control module.
And then go to Step 6.
6 Turn ignition switch to start engine.
Dose engine run?
Immobilizer control system
is in good condition.
If vehicle is equipped with
single-connector ECM,
proceed to “ENGINE
DIAGNOSIS TABLE” in
Section 6.
And if vehicle is equipped with
triple-connector ECM, Proceed
to “ENGINE DIAGNOSIS
TABLE” in Section 6-1.
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