Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual ELECTRICAL SECTION Body Electrical System (Keyless Entry System) MSA5TCD00L16070

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.

Image preview - the first page of the document

>> Download MSA5TCD00L16070 documenatation <<

Text preview - extract from the document

DIAGNOSTICS [T6A9] 6-2b
6. Diagnostics Procedure

6. Diagnostics Procedure 6A5 : CHECK KEYLESS ENTRY FUNCTION.
A: BASIC DIAGNOSTICS
Check if the room light is turned on.
PROCEDURE
: Does the room light turn on for 30
6A1 : CHECK KEYLESS ENTRY FUNCTION. seconds, and then turn off?
: Go to step 6A6.
1) Perform pre-inspection. : Go to step 6C1.

2) Remove ignition key from ignition switch. 6A6 : CHECK KEYLESS ENTRY FUNCTION.
3) Set the room light switch in the middle position.
4) Close all doors, rear gate and trunk lid.
5) Press the LOCK/ARM button one time. 1) Press the LOCK/ARM button one time.
2) Press the UNLOCK/DISARM button two times.
: Do all doors and rear gate lock nor-
mally? : Do all doors and rear gate unlock
normally?
: Go to step 6A2.
: Go to step 6A7.
: Replace keyless entry control module.
: Replace keyless entry control module.

6A2 : CHECK KEYLESS ENTRY FUNCTION.
6A7 : CHECK KEYLESS ENTRY FUNCTION.

Check if the horn signal chirps.
Keep the LOCK/ARM button pressed for more than
: Does the horn chirp one time? 1.5 seconds.
: Go to step 6A3. : Does the horn sound for 30 seconds,
: Go to step 6B1. and then turns off?
: Go to step 6A8.
6A3 : CHECK KEYLESS ENTRY FUNCTION. : Replace keyless entry control module.

Press the UNLOCK/DISARM button one time.
6A8 : CHECK KEYLESS ENTRY FUNCTION.
: Does the driver's door unlock nor-
mally?
: Go to step 6A4. 1) Keep the LOCK/ARM button pressed for more
than 1.5 seconds.
: Replace keyless entry control module. 2) Horn will sound, and then press the LOCK/ARM
button.
: Does the horn turn off?
6A4 : CHECK KEYLESS ENTRY FUNCTION. : Go to step 6A9.
: Replace keyless entry control module.
Check if the horn signal chirps.
: Does the horn chirp two times?
: Go to step 6A5. 6A9 : CHECK KEYLESS ENTRY FUNCTION.
: Replace keyless entry control module.
1) Keep the LOCK/ARM button pressed for more
than 1.5 seconds.
2) Horn will sound, and then press the UNLOCK/
DISARM button.
: Does the horn turn off?
: Go to step 6A10.
: Replace keyless entry control module.

11
6-2b [T6A10] DIAGNOSTICS
6. Diagnostics Procedure

6A10 : CHECK DOOR SWITCH FUNCTION. 6A14 : PERFORM PROGRAMMING.

Open the front left door. NOTE:
Finish operation from step 1) through 4) within 45
: Does the room light turn on?
seconds.
: Go to step 6A11.
1) Sit on the driver's seat and close all doors, rear
: Go to step 6D1. gate and trunk lid.
2) Open the driver's door.
6A11 : CHECK DOOR SWITCH FUNCTION. 3) Close the driver's door.
4) Turn the ignition switch from ON to LOCK ten
times in rapid succession (within 15 seconds).
1) Close the front left door.
2) Open the front right door. NOTE:
Do not start the engine at this time.
: Does the room light turn on?
5) The horn chirps one time to indicate that the
: Go to step 6A12.
system has been in the programming mode.
: Go to step 6D1. 6) Open the driver's door.
7) Close the driver's door.
6A12 : CHECK DOOR SWITCH FUNCTION. 8) Press any button on the transmitter that you
wish to program into the system.
9) Horn will chirp two times to indicate that the
1) Close the front right door. transmitter has been programmed.
2) Open the rear left door.
NOTE:
: Does the room light turn on? Any additional transmitter can also be pro-
: Go to step 6A13. grammed at this time. Repeat steps 6) through 9)
: Go to step 6D1. for an additional transmitter.
10) Remove the ignition key from the ignition
6A13 : CHECK DOOR SWITCH FUNCTION. switch.
11) The horn will chirp three times to indicate that
the system has exited the programming mode.
1) Close the rear left door. 12) Check the keyless entry system properly oper-
2) Open the rear right door. ates by operating each transmitter.
: Does the room light turn on? : Does the transmitter operate nor-
: Go to step 6A14. mally?
: Go to step 6D1. : Go to step 6A15.
: Go to step 6E1.

6A15 : CHECK IGNITION KEY SWITCH.

1) Insert the ignition key to the ignition switch (at
LOCK position).
2) Perform lock and unlock with transmitter.
: Does the power door lock function
normally?
: Go to step 6F1.
: End of basic diagnostics procedure.

12
DIAGNOSTICS [T6B4] 6-2b
6. Diagnostics Procedure

B: DIAGNOSTICS ITEM 1 6B3 : CHECK HORN RELAY.

6B1 : SELECT HORN SIGNAL OPERATION.
1) Remove horn relay from main fuse box.
2) Check continuity between horn relay terminals.
Keep both LOCK/ARM and UNLOCK/DISARM
buttons pressed for more than 1.5 seconds. Terminals
No. 1 -- No. 2:
: Does the horn chirp one time?
: Go to step 6B2.
: Replace keyless entry control module.

6B2 : CHECK HORN SIGNAL OUTPUT SIG-
NAL.

1) Disconnect connector from keyless entry con-
trol module. B6M1348A
2) Measure voltage between keyless entry control
module connector (B176) and chassis ground. : Does continuity exist?
Connector & terminal : Replace horn relay.
(B176) No. 12 (+) -- Chassis ground (-): : Go to step 6B4.

6B4 : CHECK HORN RELAY.

Check continuity between horn relay terminals.
Terminals
No. 3 -- No. 4:

B6M0958A

: Is the voltage more than 10 V?
: Go to step 6B3.
: Go to step 6B6.

B6M1349A

: Does continuity exist?
: Go to step 6B5.
: Replace horn relay.

13
6-2b [T6B5] DIAGNOSTICS
6. Diagnostics Procedure

6B5 : CHECK HORN RELAY. 6B7 : CHECK POWER SUPPLY FOR HORN
RELAY.
1) Connect the battery to horn relay terminals No.
3 and No. 4. 1) Install horn relay to main fuse box.
2) Check continuity between horn relay terminals. 2) Measure voltage between main fuse box con-
Terminals nector (F37) and chassis ground.
No. 1 -- No. 2: Connector & terminal
(F37) No. 4 (+) -- Chassis ground (-):

B6M1350A
B6M1351A
: Does continuity exist?
: Repair wiring harness of horn circuit. : Is the voltage more than 10 V?
: Replace horn relay. : Go to step 6B8.
: Repair wiring harness between main
6B6 : CHECK FUSE. fuse box and battery.

Remove and visually check the fuse No. 6 (in main
fuse box).
: Is the fuse No. 6 blown?
: Replace fuse (15 A).
: Go to step 6B7.

14
DIAGNOSTICS [T6C3] 6-2b
6. Diagnostics Procedure

6B8 : CHECK RESISTANCE BETWEEN C: DIAGNOSTICS ITEM 2
HORN RELAY AND KEYLESS ENTRY
CONTROL MODULE. 6C1 : CHECK FUSE.

1) Disconnect connector from main fuse box and Remove and visually check the fuse No. 2 (in main
keyless entry control module. fuse box).
2) Measure resistance between keyless entry con- : Is fuse No. 2 blown?
trol module connector (B176) and main fuse box
connector (F37). : Replace fuse (15 A).
Connector & terminal : Go to step 6C2.
(B176) No. 12 -- (F37) No. 4:
6C2 : CHECK ROOM LIGHT BULB.

Remove and visually check the room light bulb.
: Is the bulb blown?
: Replace bulb.
: Go to step 6C3.

6C3 : CHECK ROOM LIGHT SWITCH.
B6M1352A
1) Remove room light.
: Is the resistance less than 10 ? 2) Measure resistance of room light switch termi-
: Replace keyless entry control module. nal at the middle position.
Terminals
: Repair wiring harness between main No. 2 -- No. 3:
fuse box and keyless entry control mod-
ule.

B6M0960A

: Is the resistance less than 1 ?
: Repair or replace room light.
: Go to step 6C4.

15
6-2b [T6C4] DIAGNOSTICS
6. Diagnostics Procedure

6C4 : CHECK POWER SUPPLY FOR ROOM 6C5 : CHECK HARNESS CONNECTOR
LIGHT. BETWEEN ROOM LIGHT AND KEY-
LESS ENTRY CONTROL MODULE.
1) Disconnect connector from room light.
2) Open any door. 1) Disconnect connector from keyless entry con-
3) Measure voltage between room light connector trol module.
(R52) and chassis ground. 2) Measure resistance between room light con-
nector (R52) and keyless entry module connector
Connector & terminal (B176).
(R52) No. 1 (+) -- Chassis ground (-):
Connector & terminal
(R52) No. 2 -- (B176) No.4:

B6M1353A

B6M1354A
: Is the voltage more than 10 V?
: Go to step 6C5. : Is the resistance less than 10 ?
: Repair wiring harness between room : Replace keyless entry control module.
light and battery.
: Repair wiring harness between room
light and keyless entry control module.

16
DIAGNOSTICS [T6E1] 6-2b
6. Diagnostics Procedure

D: DIAGNOSTICS ITEM 3 E: DIAGNOSTICS ITEM 4
6D1 : CHECK DOOR SWITCH. 6E1 : CHECK IGNITION SWITCH.

1) Remove door switch. 1) Remove ignition switch.
2) Turn ignition key to each position and check
continuity between terminals of ignition switch con-
nector.

B6M0070A

2) Move switch and check continuity between ter-
minals of door switch. B6M1356A
Terminals
No. 1 -- No. 3 : Is the ignition switch faulty?
: Replace ignition switch.
: Replace keyless entry control module.

B6M1355A

: Does any fault exist in the door
switch?
: Replace door switch.
: Replace keyless entry control module.

17
6-2b [T6F1] DIAGNOSTICS
6. Diagnostics Procedure

F: DIAGNOSTICS ITEM 5 6F3 : CHECK HARNESS CONNECTOR
BETWEEN BATTERY AND KEY
6F1 : CHECK FUSE. WARNING SWITCH.

Remove and visually check the fuse No. 6 (in main 1) Disconnect connector from key warning switch.
fuse box). 2) Measure voltage between key warning switch
: Is fuse No. 6 blown? connector (B74) and chassis ground.
: Replace fuse (15 A). Connector & terminal
(B74) No. 2 (+) -- Chassis ground (-):
: Go to step 6F2.

6F2 : CHECK KEYLESS ENTRY CONTROL
MODULE.

1) Disconnect connector from keyless entry con-
trol module.
2) Insert the key to ignition switch (LOCK posi-
tion).
3) Measure voltage between keyless entry control
B6M0964A
module connector (B176) and chassis ground.
Connector & terminal : Is the voltage more than 10 V?
(B176) No. 16 (+) -- Chassis ground (-):
: Go to step 6F4.
: Repair wiring harness between battery
and key warning switch.

6F4 : CHECK HARNESS CONNECTOR
BETWEEN KEY WARNING SWITCH
AND KEYLESS ENTRY CONTROL
MODULE.

Measure resistance between key warning switch
B6M0963A connector (B74) and keyless entry control module
connector (B176).
: Is the voltage more than 10 V? Connector & terminal
: Replace keyless entry control module. (B74) No. 1 -- (B176) No. 16:

: Go to step 6F3.

B6M0965A

: Is the resistance less than 10 ?
: Replace key warning switch.
: Repair wiring harness between key
warning switch and keyless entry control
module.

18
6-2b DIAGNOSTICS

MEMO:

◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo