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IMMOBILIZER (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step
1
CHECK IMMOBILIZER INDICATOR LIGHT.
1) Turn the ignition switch to "OFF" or "ACC".
2) Wait for 60 seconds or more.
2
CHECK KEY SWITCH.
Remove the key from ignition switch.
3
CHECK IMMOBILIZER INDICATOR LIGHT.
Turn the ignition switch to ON.
4
CHECK ENGINE START.
Turn the ignition switch to START.
5
CHECK IMMOBILIZER INDICATOR LIGHT.
Turn the ignition switch to ON.
6
CHECK ENGINE START.
Turn the ignition switch to START.
7
CHECK ENGINE START.
Turn the ignition switch to START.
8
CHECK DTC (BODY INTEGRATED MOD-
ULE).
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector. <Ref. to LAN(diag)-14, OPERA-
TION, Subaru Select Monitor.>
3) Turn the ignition switch and Subaru Select
Monitor power switch to ON.
4) Read the DTC using Subaru Select Moni-
tor.
Basic Diagnostic Procedure
Does the immobilizer indicator
light blink?
Does the immobilizer indicator
light blink within 1 second after
removing ignition key?
Does the immobilizer indicator
light off?
Does the starter operate?
Does the immobilizer indicator
light blink?
Does the starter operate?
Does the engine start?
Is DTC displayed on the Sub-
aru Select Monitor?
IM(diag)-2
Check
Go to step 2.
Go to step 3.
Go to step 6.
Go to step 5.
Check the LAN
communication
system. <Ref. to
LAN(diag)-2,
PROCEDURE,
Basic Diagnostic
Procedure.>
Go to step 7.
Immobilizer sys-
tem is OK.
Go to step 10.
Yes
No
Check immobilizer
indicator light cir-
cuit. <Ref. to
IM(diag)-11,
CHECK IMMOBI-
LIZER INDICA-
TOR CIRCUIT,
INSPECTION,
Diagnostics Chart
for Immobilizer
Indicator Light.>
Check the key
switch circuit.
<Ref. to IM(diag)-
13, CHECK KEY
SWITCH CIR-
CUIT., INSPEC-
TION, Diagnostics
Chart for Immobi-
lizer Indicator
Light.>
Go to step 4.
Go to step 8.
Re-register all the
keys registered
with the vehicle,
Go to step 3.
(Refer to "IMMO-
BILIZER TEACH-
ING OPERATION
MANUAL".)
Check the LAN
communication
system. <Ref. to
LAN(diag)-2,
PROCEDURE,
Basic Diagnostic
Procedure.>
Check DTC dis-
play (ECM). Go to
step 9.
Check the connec-
tion of immobilizer
antenna and com-
bination meter,
and then register
all the keys regis-
tered with the vehi-
cle, Go to step 3.
(Refer to "IMMO-
BILIZER TEACH-
ING OPERATION
MANUAL".)
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