Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 773
LAN SYSTEM (DIAGNOSTICS)
LAN(diag)
Page
Basic Diagnostic Procedure . . . . . . . . . . . . . . . . . ...2
Check List for Interview . . . . . . . . . . . . . . . . . . . ..3
General Description . . . . . . . . . . . . . . . . . . . . ...6
Electrical Component Location . . . . . . . . . . . . . . . . ..8
Control Module I/O Signal . . . . . . . . . . . . . . . . . . 10
Subaru Select Monitor . . . . . . . . . . . . . . . . . . . ..13
Read Diagnostic Trouble Code (DTC) . . . . . . . . . . . . . .28
Clear Memory Mode . . . . . . . . . . . . . . . . . . . . .29
Read Current Data . . . . . . . . . . . . . . . . . . . . ...30
User Customizing . . . . . . . . . . . . . . . . . . . . . .31
List of Diagnostic Trouble Code (DTC) . . . . . . . . . . . . . 32
Diagnostic Procedure with Diagnostic Trouble Code (DTC) . . . . . 35
General Diagnostic Table . . . . . . . . . . . . . . . . . . .77
LAN(diag)-2
Basic Diagnostic Procedure
LAN SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
CAUTION:
• Subaru Select Monitor is required for reading DTC, performing diagnosis and reading current data.
• Remove foreign matter (dust, water, oil, etc.) from the body integrated unit connector during re-
moval and installation.
• For model with immobilizer, registration of immobilizer may be needed after the replacement of
controller etc. For detailed procedure, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER”.
NOTE:
• To check harness for open or short circuits, shake the suspected trouble spot or connector.
• Check List for Interview <Ref. to LAN(diag)-3, Check List for Interview.>
Step
Check
Yes
No
1
CHECK PRE-INSPECTION.
Ask the customer when and how the trouble
occurred using the interview check list. <Ref. to
LAN(diag)-3, Check List for Interview.>
Did you interview the cus-
tomer?
Interview the cus-
tomer.
2
BASIC INSPECTION.
Check components which might affect body
control. <Ref. to LAN(diag)-6, INSPECTION,
General Description.>
Is the component that might
influence the body control prob-
lem normal?
Repair or replace
each component.
3
CHECK DTC.
1) Read the DTC. <Ref. to LAN(diag)-13,
READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
NOTE:
If the communication function of the Subaru Se-
lect Monitor cannot be executed properly,
check the communication circuit. <Ref. to
LAN(diag)-25, COMMUNICATION FOR INI-
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
2) Record all DTCs and freeze frame data.
Is DTC displayed on Subaru
Select Monitor?
4
PERFORM GENERAL DIAGNOSTICS.
Inspect using the “General Diagnostic Table”.
<Ref. to LAN(diag)-77, General Diagnostic
Table.>
Is result of inspection OK?
LAN system is nor-
mal.
5
PERFORM DIAGNOSIS.
1) Correct the cause of trouble.
2) Perform the Clear Memory Mode. <Ref. to
LAN(diag)-22, CLEAR MEMORY MODE,
OPERATION, Subaru Select Monitor.>
3) Read the DTC. <Ref. to LAN(diag)-13,
READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Is DTC displayed on Subaru
Select Monitor?
Repeat step 5 until
DTC is not shown.
Finish the diagno-
sis.
LAN(diag)-3
Check List for Interview
LAN SYSTEM (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Inspect the following item about the vehicle’s state.
1. DISPLAY STATUS IN THE COMBINATION METER
Display status in the com-
bination meter
Engine coolant temperature gauge display
OK /
NG
Fuel gauge display
OK /
NG
Display of other indicators
Malfunction indicator light
ON /
OFF
Engine coolant temperature warning light
ON /
Blink /
OFF
Fuel level warning light
ON /
Blink /
OFF
EBD warning light
ON /
Blink /
OFF
ABS warning light
ON /
Blink /
OFF
VDC warning light
ON /
Blink /
OFF
Hill start assist warning light
ON /
Blink /
OFF
Security/immobilizer indicator
ON /
Blink /
OFF
DCCD indicator
ON /
Blink /
OFF
LAN(diag)-4
Check List for Interview
LAN SYSTEM (DIAGNOSTICS)
2. SYMPTOMS
Vehicle condition
Clearance light does not illuminate.
Yes /
No
Clearance light indicator does not illuminate.
Yes /
No
Low beam does not illuminate.
Yes /
No
High beam does not illuminate.
Yes /
No
High beam indicator does not illuminate.
Yes /
No
Front fog light does not illuminate.
Yes /
No
Front fog light indicator does not illuminate.
Yes /
No
DRL does not illuminate.
Yes /
No
Warning buzzer for key left in ignition does not beep.
Yes /
No
Driver’s seat belt warning light does not illuminate.
Yes /
No
Passenger’s seat belt warning light does not illuminate.
Yes /
No
Seat belt warning alarm does not sound.
Yes /
No
Wiper deicer does not operate.
Yes /
No
Rear defogger does not operate.
Yes /
No
Illumination volume control is not available.
Yes /
No
Combination meter does not dim when headlights are ON.
Yes /
No
Rear wiper does not operate.
Yes /
No
Doors can not be locked/unlocked with central door lock switch.
Yes /
No
Doors can not be locked/unlocked with keyless entry system.
Yes /
No
Rear gate can not be opened when rear gate opener button is
pressed.
Yes /
No
Trunk can not be opened with keyless entry system.
Yes /
No
Hazard answer-back does not operate.
Yes /
No
Answer-back buzzer does not sound
Yes /
No
Ignition key illumination does not light.
Yes /
No
Ignition key illumination blinks.
Yes /
No
Room light does not operate in accordance with door open/close
operations.
Yes /
No
Room light blinks.
Yes /
No
Map light does not operate in accordance with door open/close
operations. (model with sunroof)
Yes /
No
Map light blinks. (model with sunroof)
Yes /
No
Indicator does not illuminate when parking brake is operated.
Yes /
No
Security monitoring does not start
Yes /
No
Security cannot be cancelled
Yes /
No
Hazard answer-back does not blink during security monitoring
Yes /
No
Horn does not sound during security monitoring
Yes /
No
Alarm operates as soon as security monitor condition occurs.
Yes /
No
Security alarm does not operate even when impact is applied
(model with impact sensor).
Yes /
No
Engine does not start.
Yes /
No
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст