1. WITHOUT KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM
When the body integrated unit (except for C5
model) or the immobilizer CM (C5 model) is replaced, registration of the
immobilizer system is required. For details, refer to the “REGISTRATION
MANUAL FOR IMMOBILIZER” provided as a separate volume.
IMMOBILIZER (DIAGNOSTICS) > Check List for Interview
CHECK
Inspect the following items regarding the vehicle’s state.
Immobilizer Check List for Interview Brought in on: Year Month Date
Customer’s name
Registration No.
Initial year of registration
Year Month Date
Vehicle model
Frame number
Interviewer
Inspector
Engine type
Odometer reading
Customer specified content
•
•
•
Date and time when the trouble occurred
Frequency of trouble occurrence
Always occurs
Sometimes occurs ( times per day, times per month)
Condition of trouble occurrence
(How the trouble occurs)
Weather
Fine • Cloudy • Rainy • Snowy • Others ( )
Temperature
°C (°F) — °C (°F)
Road conditions
Road condition
Accessory installation condition
Diagnostic trouble code
Time stamp
Control module item number/Ver.
Condition of trouble occurrence (How the trouble occurs)
Vehicle bring-in history information
IMMOBILIZER (DIAGNOSTICS) > General Description
CAUTION
Do not use the electrical test equipment on the airbag system wiring harnesses and connector circuits.
Be careful not to damage the airbag system wiring harness.
While diagnostic items are being checked, do not
operate radios, portable telephones, etc. which emit electromagnetic
waves near or inside the vehicle.
When turning the ignition switch to ON or OFF
while diagnostic items are being checked, do not allow keys with
different ID codes close to the ignition switch. If the ignition key is
on a key holder, remove it from the key holder before performing
diagnoses.
When repeatedly turning the ignition switch to
ON or OFF while diagnostic items are being checked, it should be
switched in cycles of “ON” for at least 5 seconds → “OFF” for at least 8
seconds.
(1)
Ignition switch position
(2)
Sec.
If the engine fails to start with a registered
ignition key, detach the ignition key from ignition switch and wait for
approx. 1 second until security indicator light begins to flash. And
then start the engine again.
Before performing the diagnostics, obtain all keys for the vehicle from the owner.
Do not register a body integrated unit already registered to another vehicle to diagnose failures or inspect functions.
IMMOBILIZER (DIAGNOSTICS) > General Description
INSPECTION
Before performing diagnosis, check the following items which might be related to immobilizer malfunction.
It is possible to diagnose the DTC by performing
the indicated inspection mode. After correcting the DTC, perform a
necessary inspection mode and make sure that the function is resumed
correctly and the DTC is recorded.
1. INSPECTION MODE 1
DTC
Item
Note
B1401
COMBINATION METER COLLATION
—
B1402
IMMOBILIZER KEY COLLATION
—
B1407
COMBINATION METER COMMUNICATION
—
B1408
COMBINATION METER NON-VOLATILE MEMORY
—
B1410
TRANSPONDER COMMUNICATION
—
B1411
IMMOBILIZER ANTENNA
—
B1413
IMMOBILIZER CONTROL MODULE BATTERY POWER SUPPLY
—
Diagnostic procedure:
1.
Using the Subaru Select Monitor, perform the clear memory of [Body Control] or [Immobilizer]. COMMON(diag)>Clear memory
If the DTC is displayed on the screen, the
trouble is still present. Perform the diagnosis for the displayed DTCs.
After solving the DTC, repeat from step 1).
3.
Remove the ignition key from the ignition switch, and insert again.
4.
Turn the ignition switch OFF → ON, and wait for 10 seconds or more.
If the DTC is displayed on the screen, the
trouble is still present. Perform the diagnosis for the displayed DTCs.
After solving the DTC, repeat from step 1).
3.
Disconnect the ground terminal from the battery sensor, reconnect it , and then wait for one minute or more.
If the DTC is displayed on the screen, the
trouble is still present. Perform the diagnosis for the displayed DTCs.
After solving the DTC, repeat from step 1).
3.
Start the engine, and
then run the engine at idle for 10 seconds or more. Or, disconnect the
ground terminal from the battery sensor, reconnect it, then turn the
ignition switch from OFF to ON and wait for 10 seconds or more.
When the body integrated unit (except for C5
model) or the immobilizer CM (C5 model) is replaced, registration of the
immobilizer system is required. For details, refer to the “REGISTRATION
MANUAL FOR IMMOBILIZER” provided as a separate volume.
1. CHECK FUSE.
1.
Remove the ignition key from ignition switch. Or, turn off the power.
The starter relay control is performed in
immobilizer system. When the body integrated unit detects a
nonconformity of reference code, it immediately outputs a starter relay
cut signal to ECM, and then ECM stops the starter relay operation. In
this case, engine does not start, and DTC is not recorded in ECM.
Therefore, check DTC on the body integrated unit to identify the cause
of the engine not starting.
The starter relay control is performed in
immobilizer system. When the immobilizer CM detects a nonconformity of
reference code, it immediately outputs a starter relay cut signal to
ECM, and then ECM stops the starter relay operation. In this case,
engine does not start, and DTC is not recorded in ECM. Therefore, check
DTC on the immobilizer CM to identify the cause of the engine not
starting.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1401 METER COLLATION
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Reference code incompatibility between combination meter and body integrated unit
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the combination meter is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
1. CHECK COMBINATION METER REGISTRATION.
Perform registration of combination meter. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Currently, it is normal. (Combination meter registration is not complete.)
Refer to “Correspondence table when registration
is not possible” in the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume. If the registration still does not work properly,
replace the combination meter. INSTRUMENTATION/DRIVER INFO>Combination Meter
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1402 IMMOBILIZER KEY COLLATION
1. OTHER THAN FOR C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Use of unregistered key in body integrated unit.
Trouble symptom:
Engine will not start.
The security indicator illuminates, when the
ignition key is inserted into the ignition switch or when the ignition
switch is turned to ON.
When the body integrated unit or combination
meter is replaced, registration of the immobilizer system is required.
For details, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume.
Using the Subaru Select Monitor, check the
number of registered ignition keys. Refer to the “REGISTRATION MANUAL
FOR IMMOBILIZER” provided as a separate volume.
Register the key. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is the key registration completed normally?
Malfunction occurred in ignition key.
Replace the ignition key.
2. C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Use of unregistered key in immobilizer CM.
Trouble symptom:
Engine will not start.
The security indicator illuminates, when the
ignition key is inserted into the ignition switch or when the ignition
switch is turned to ON.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Using the Subaru Select Monitor, check the
number of registered ignition keys. Refer to the “REGISTRATION MANUAL
FOR IMMOBILIZER” provided as a separate volume.
Register the key. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is the key registration completed normally?
Malfunction occurred in ignition key.
Replace the ignition key.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1407 MET COMMUNICATION
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Communication failure between body integrated unit and combination meter
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the combination meter is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1408 METER NON-VOLATILE MEMORY
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Defective combination meter
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the combination meter is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
1. CHECK COMBINATION METER REGISTRATION.
1.
Turn the ignition switch to ON.
2.
Using the Subaru Select Monitor, perform the clear memory of [Body Control] and [Combination Meter]. COMMON(diag)>Clear memory
Body Control
Combination Meter
3.
Perform registration of combination meter. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Even if DTC is displayed, the circuit has
returned to a normal condition at this time. Reproduce the failure, and
then perform the diagnosis again.
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1410 TRANSPONDER COMMUNICATION
1. OTHER THAN FOR C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Communication failure between ignition key and body integrated unit
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the body integrated unit is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Malfunction occurred in the immobilizer antenna, ignition key or body integrated unit.
2. C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Communication failure between ignition key and immobilizer CM
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
When the body integrated unit is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Repair the open circuit of harness between the immobilizer CM connector and immobilizer antenna connector.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1412 IMMOBILIZER CONTROL MODULE CAN REGISTER STUCK
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Defective immobilizer CM
Failed to access the ROM of immobilizer CM
Trouble symptom:
The security indicator does not blink after the ignition key is turned to OFF.
The security indicator remains off.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Repair the open circuit of harness between the immobilizer CM connector and chassis ground.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1414 IMMOBILIZER CONTROL MODULE NON-VOLATILE MEMORY
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Defective immobilizer CM
Failed to access the ROM in immobilizer CM.
Trouble symptom:
Engine will not start.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
The system has returned to a normal condition at this time. Finish the diagnosis.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)
1. OTHER THAN FOR C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Reference code incompatibility between body integrated unit and ECM
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the body integrated unit or ECM is
replaced, registration of the immobilizer system is required. For
details, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a
separate volume.
Check the grounding point of the engine ground and chassis ground.
Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?
Remove the foreign matters, and tighten to the
specified torque. Then start the engine, and check that the fault was
removed. Read the DTC IMMOBILIZER (DIAGNOSTICS)>Diagnostic Trouble Code (DTC), and when DTC B1571 is still displayed, 3
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Finish the diagnosis.
Refer to “Correspondence table when registration
is not possible” in the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume. If the registration still does not work properly,
replace the body integrated unit. SECURITY AND LOCKS>Body Integrated Unit
2. C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Reference code incompatibility between immobilizer CM and ECM
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the immobilizer CM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Check the grounding point of the engine ground and chassis ground.
Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?
Remove the foreign matters, and tighten to the
specified torque. Then start the engine, and check that the fault was
removed. Read the DTC IMMOBILIZER (DIAGNOSTICS)>Diagnostic Trouble Code (DTC), and when DTC B1571 is still displayed, 3
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Finish the diagnosis.
Refer to “Correspondence table when registration
is not possible” in the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume. If the registration still does not work properly,
replace the immobilizer CM. SECURITY AND LOCKS>Body Integrated Unit
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1572 IMM CIRCUIT EXCEPT ANTENNA CIRCUIT
1. OTHER THAN FOR C5 MODEL
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Communication failure between body integrated unit and ECM
When the body integrated unit or ECM is
replaced, registration of the immobilizer system is required. For
details, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a
separate volume.
Check the grounding point of the engine ground and chassis ground.
Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?
Remove the foreign matters, and tighten to the
specified torque. Then start the engine, and check that the fault was
removed. Read the DTC IMMOBILIZER (DIAGNOSTICS)>Diagnostic Trouble Code (DTC), and when DTC B1572 is still displayed, 3
When the immobilizer CM or ECM is replaced,
registration of the immobilizer system is required. For details, refer
to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate
volume.
Check the grounding point of the engine ground and chassis ground.
Is there any looseness? Are there any foreign matters caught on the ground or contact surface? Are there any oil-soiled areas?
Remove the foreign matters, and tighten to the
specified torque. Then start the engine, and check that the fault was
removed. Read the DTC IMMOBILIZER (DIAGNOSTICS)>Diagnostic Trouble Code (DTC), and when DTC B1572 is still displayed, 3
Malfunction occurred in ECM. Register the ECM. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1576 EGI CONTROL MODULE EEPROM
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
ECM malfunctioning
Failed to access ROM in ECM during key registration.
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the ECM is replaced, registration of the
immobilizer system is required. For details, refer to the “REGISTRATION
MANUAL FOR IMMOBILIZER” provided as a separate volume.
1. PERFORM ECM REGISTRATION.
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Finish the diagnosis.
Refer to “Correspondence table when registration
is not possible” in the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume. If the registration still does not work properly,
replace the ECM. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Engine Control Module (ECM)
IMMOBILIZER (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B1577 IMM CONTROL MODULE EEPROM
Diagnosis start condition:
Battery voltage is 10 V or more.
The remote engine starter was not used to start the engine.
DTC detecting condition:
Defective body integrated unit or immobilizer CM
Failed to access ROM in the body integrated unit or the immobilizer CM
Trouble symptom:
Engine will not start.
The security indicator illuminates.
When the body integrated unit or immobilizer CM
is replaced, registration of the immobilizer system is required. For
details, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a
separate volume.
1. PERFORM ECM REGISTRATION.
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.
Is registration complete?
Even if DTC is displayed, the circuit has
returned to a normal condition at this time. Reproduce the failure, and
then perform the diagnosis again.
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
Refer to “Correspondence table when registration
is not possible” in the “REGISTRATION MANUAL FOR IMMOBILIZER” provided
as a separate volume. If the registration still does not work properly,
replace the following parts.
When the body integrated unit (except for C5
model) or the immobilizer CM (C5 model) is replaced, registration of the
immobilizer system is required. For details, refer to the “REGISTRATION
MANUAL FOR IMMOBILIZER” provided as a separate volume.
5. CHECK HARNESS BETWEEN KEY WARNING SWITCH AND BODY INTEGRATED UNIT (EXCEPT FOR C5 MODEL) OR IMMOBILIZER CM (C5 MODEL).
1.
Disconnect the connector from the body integrated unit (except for C5 model) or the immobilizer CM (C5 model).
2.
Measure the resistance between key warning
switch connector terminal and body integrated unit (except for C5 model)
or immobilizer CM (C5 model) connector terminal.
IMMOBILIZER (DIAGNOSTICS)>Check List for Interview