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YH4

GRAND

VITARA

IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-21

1. Main fuse

2. Ignition switch

3. Immobilizer

Control Module

(g)

DTC22 IGNITION SWITCH CIRCUIT OPEN/SHORT

DESCRIPTION:

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.

INSPECTION:

STEP ACTION YES NO

1 Check voltage between Immobilizer

Control Module coupler terminal A4

and body ground with ignition

switch turned ON.

(See Fig.1)

Is it 10 – 14V?

Poor A4 terminal connection.

If connection is OK, substitute a

known-good Immobilizer Control

Module and recheck.

NOTE:

After replacing with a know-good

Immobilizer Control Module,

Module code in ECM/PCM and

Transponder code and ECM/

Immobilizer Control Module code

in Immobilizer Control Module by

performing procedure described

in “Procedure after Immobilizer

Control Module Replacement”

section.

“(g)” wire open or short.

Fig. 1 for Step 1

1. Immobilizer Control Module

Suzuki Grand Vitara 1998 User Manual

Questions and Answers: