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8G-16 IMMOBILIZER CONTROL SYSTEM
DTC22: Ignition Switch Circuit Open/Short
Wiring Diagram
1
1. Main fuse
2. Ignition switch
DTC Detecting Condition
Immobilizer Control Module monitors ignition signal when the ignition switch is ON. This DTC is set when no
ignition signal input is detected by Immobilizer Control Module.
Troubleshooting
Step
1
Check voltage between Immobilizer Con-
trol Module (1) coupler terminal G19-3
and body ground with ignition switch
turned ON. See Fig. 1.
Is it 10 – 14V?
NOTE:
After replacing with a known-good Immobilizer Control Module, register ECM/Immobilizer Control
Module code in ECM and Transponder code and ECM/Immobilizer Control Module code in Immobilizer
Control Module by performing procedure described in "Procedure After Immobilizer Control Module
Replacement" in this section.
[A]
2
BLK/WHT
3. Immobilizer Control Module
Action
G19
1
3
2
1
4
G19-3
3
Yes
Poor G19-3 terminal connection.
If connection is OK, substitute a
known-good Immobilizer Control Mod-
ule and recheck.
See NOTE below.
[A]: Fig. 1 for Step 1
No
"BLK/WHT" wire
open or short
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