YH4
GRAND
VITARA
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-13
DIAGNOSTIC TROUBLE CODE TABLE
Immobilizer Control Module side
DIAGNOSTIC TROUBLE CODE
NO. VOLTMETER INDICATION
– Normal (No code)
This code appears when none of the
other codes are identified.
11
p
31
12 Immobilizer Control Module
Diagnose trouble according to
13
Coil antenna or ignition key with
built-in transponder
agnose
rou
e accor
ng
o
“DIAGNOSTIC FLOW TABLE”
p
21 ECM/Immobilizer Control Module code
.
22 Ignition switch circuit
23 Serial data link wire
ECM/PCM side
DTC
(indicated on
Suzuki
scan tool)
DTC
(indicated
by MIL)
Malfunction Indicator lamp
(MIL) flashing pattern
DIAGNOSTIC AREA DIAGNOSIS
NO DTC 12 Normal
This code appears when it is
confirmed that none of other
trouble codes is set for immo-
bilizer control system or elec-
tronic fuel injection system.
P1623 81
ECM/Immobilizer
P1620 84
Control Module code
Diagnose trouble according to
“DIAGNOSTIC FLOW
P1622 82 ECM/PCM
TABLE” corresponding to
each code No.
P1621 83 Serial data link wire