Volkswagen Workshop Service and Repair Manuals > Golf Mk3 > Vehicle electrics | Electrical system | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of radio systems for Golf Convertible 05.98 >

Final control diagnosis > < Self-diagnosis of radio systems for Golf Convertible 05.98 >

Electrical system

Self-diagnosis of radio systems for Golf Convertible 05.98 >

Self-diagnosis of radio systems

Special tools, testers, measuring units and auxiliary items required

◆ V.A.G 1551 fault reader or V.A.G 1552 vehicle system tester or
◆ Vehicle Diagnosis, Testing and Information System VAS 5051

◆ V.A.G 1551/3 or 1551/3A Adapter cable

Connecting fault reader V.A.G 1551 and selecting functions (Interrogating unit version)

Check prerequisites:

◆ All fuses according to current flow diagram OK.
◆ Supply voltage OK (at least 9.0 V).

The self-diagnosis connection is located in centre of dash panel above ashtray.



‒ Fold storage compartment below left-hand side of dash panel down. ‒ Connect fault reader or system tester using cable V.A.G 1551/3 to diagnosis connection.

→ Indicated on display:

V.A.G - SELF DIAGNOSIS HELP

1 - Rapid data transfer*

2 - Flash code output*

* Appears alternately

Notes:

◆ If the display remains blank, check V.A.G 1551 voltage supply according to current flow diagram.

=> Current flow diagrams, Electrical fault finding and Fitting locations binder

◆ Additional operating instructions can be called up with the fault reader HELP key.
◆ The ⇒ key serves to advance the programme sequence.
◆ In the operating mode 1 "Rapid data transfer" the function 00 "Automatic test sequence" can be carried out. Then all vehicle control units will be interrogated automatically.
◆ The radio unit is switched to mute during self-diagnosis.

‒ Switch on ignition.
‒ Switch on printer with the Print key (indicator lamp in key lights up).
‒ Press key 1 for "Rapid data transfer" mode.

→ Indicated on display:

Rapid data transfer HELP

Input address word XX

‒ Press keys 5 and 6. "56" enters the address word "Radio".

→ Indicated on display:

Rapid data transfer Q

56 Radio

‒ Confirm entry with Q key.

→ Indicated on display:

Rapid data transfer Q

Tester sends address word 56

Interrogate radio unit version

→ Indicated on display:

1J0035152 Radio 0001 ⇒

Coding 01401 WSC 00000

◆ Upper line     Unit version number of
          radio part
          Software version number
◆ Lower line Code number Dealership number1)

1)- Will be automatically stored in the radio unit when entering the system.

Indicated on display of radio during self-diagnosis: "DIAG".

‒ Press ⇒ key.

→ Indicated on display:

Rapid data transfer HELP

Select function XX

→ Will be indicated on display:

Control unit does not answer! HELP

‒ By pressing the "HELP" key a list of possible fault causes is printed out.
‒ After rectifying faults, enter address word 56 for radio again and confirm with Q.

→ Indicated on display:

1J0035152 Radio 0001⇒

Coding 01401 WSC 00000

‒ Press ⇒ key.

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ After the HELP key is pressed, a list of the possible functions is printed out.

List of selectable functions

		Page
01 -	Interrogate radio unit version	01-63
02 -	Interrogate fault memory	01-67
03 -	Final control diagnosis	01-76
05 -	Erase fault memory	01-69
06 -	End output	01-70
07 -	Code radio functions	01-78
08 -	Read measured value block	01-81

Notes:

◆ Do not select further functions, which can be printed out after pressing the HELP key.
◆ After the function is completed the V.A.G 1551 returns to the following start position:

→ Indicated on display:

Rapid data transfer HELP

Select function XX

Interrogating fault memory

Note:

The displayed fault information is not constantly up-dated, but only when initiating the self-diagnosis or with the function 05 "Erase fault memory".

‒ Switch on printer with the Print key (indicator lamp in key lights up).

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 2. (The function "Interrogate fault memory" is selected with 02.)

→ Indicated on display:

Rapid data transfer Q

02 - Interrogate fault memory

‒ Confirm entry with key Q.

→ The number of stored faults appears in the display.

X faults recognized!

The stored faults are displayed and printed out one after another.

‒ Enter fault table at fault printed out and rectify fault .

→ If "No fault recognised" is displayed the programme will return to the start point after pressing ⇒ key.

No fault recognized! ⇒

→ Indicated on display:

Rapid data transfer HELP

Select function XX

If something else is displayed:

=> Fault reader operating instructions

‒ End output (function 06) => Page 01-70 .
‒ Switch off ignition and separate diagnostic connections.

Erasing fault memory

Note:

After erasing the fault memory its contents will automatically be indicated. If the fault memory cannot be erased, again interrogate fault memory and repair faults.

Prerequisites

◆ Fault memory interrogated .
◆ All faults repaired.

After fault memory has been successfully interrogated:

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 5. (05 selects the "Erase fault memory" function.)

→ Indicated on display:

Rapid data transfer Q

05 Erase fault memory

‒ Confirm entry with key Q.

→ Indicated on display:

Rapid data transfer ⇒

Fault memory is erased!

The fault memory is now erased.

‒ Press ⇒ key.

→ Indicated on display:

Rapid data transfer HELP

Select function XX

Notes:

→ If this appears in the display, the test sequence is faulty.

Warning!

Fault memory was not interrogated

→ If this appears in the display, the test sequence is faulty.

Rapid data transfer ⇒

Fault memory was not interrogated

Adhere exactly to test sequence: First interrogate fault memory, if necessary repair faults, then erase.

Ending output

‒ Press keys 0 and 6. (The function "End output" is selected with 06.)

→ Indicated on display:

Rapid data transfer Q

06 End output

‒ Confirm entry with key Q.

→ Indicated on display:

Rapid data transfer Help

Enter address word XX

‒ Switch off ignition.
‒ Disconnect fault reader V.A.G 1551.

Fault table

Notes:

◆ The following table lists all the faults, with the corresponding 5 digit code numbers, that can be recognized by the radio self-diagnosis and printed out by the V.A.G 1551.
◆ Fault codes appear only on print-out.
◆ Before replacing components, check the wiring and connections to these components as well as the earth connections, according to current flow diagram.
◆ When repair has been carried out, the fault memory must always be interrogated again with the fault reader V.A.G 1551 and erased.


V.A.G. 1551 print out	Possible fault cause	Possible effects	Fault elimination
00668
Vehicle voltage terminal 30
Signal too small* * This fault can also be stored if the starter was operated for more than 10 seconds.	Battery voltage below 9.5 Volt Battery insufficiently charged Battery defective Alternator defective	Radio unit does not function or function is poor	- Read measured value block => Page 01-81 Check battery, charge if necessary => Electrical system, Repair group 27 Check alternator => Electrical system, Repair group 27


V.A.G. 1551 print out	Possible fault cause	Possible effects	Fault elimination
00849
S contact on ignition/starter switch - D
Open circuit	Ignition/starter switch not OK. Wiring not OK. Radio not OK.	Radio does not automatically switch on when ignition is switched on, even though radio was switched on when ignition was last switched off. The radio when switched on when ignition is switched on switches off automatically after 1 hour.	- Read measured value block Check wiring using current flow diagram Check ignition/starter switch, renew if necessary
00850
Active amplifier control output on radio	Short to earth	Digital Sound Packet not functioning	- Check wiring using current flow diagram Read measured value block


V.A.G. 1551 print out	Possible fault cause	Possible effects	Fault elimination
00852
Front loudspeaker
Short circuit Open circuit	Wiring short circuit between one of front loudspeakers or to earth or short circuit to loudspeaker coil Wiring open circuit to one front bass loudspeakers or open circuit to loudspeaker coil	One front loudspeaker not functioning One front bass loudspeaker not functioning	- Perform final control diagnosis => Page 01-81 Check wiring using current flow diagram Renew defective loudspeaker
00853
Rear loudspeaker
Short circuit Open circuit	Wiring short circuit between one of rear loudspeakers or to earth or short circuit to loudspeaker coil Wiring open circuit to one rear loudspeaker or open circuit to loudspeaker coil	One rear loudspeaker not functioning One rear loudspeaker not functioning	- Perform final control diagnosis => Page 01-81 Check wiring using current flow diagram Renew defective loudspeaker


V.A.G. 1551 print out	Possible fault cause	Possible effects	Fault elimination
00855
Connection to CD changer
No communication	Wiring to CD changer defective CD changer defective Radio defective	CD changer function not OK.	- Read measured value block => Page 01-81 Check wiring using current flow diagram Renew CD changer Renew radio
00856
Aerial (radio)
Short circuit Open circuit	Aerial wire defective Aerial wire not connected Aerial defective	No or poor radio reception	- Read measured value block => Page 01-81 Check aerial wire Check wiring using current flow diagram Check aerial


V.A.G. 1551 print out	Possible fault cause	Possible effects	Fault elimination
01044
Control unit incorrectly coded	Radio functions not coded	Radio functions or sound not OK. Incorrect fault entry in fault memory	- This fault message cannot be erased. Coding radio functions => Page 01-78
65535
Control unit defective	Radio defective	Radio unit function not OK.	- Renew radio

Vehicle electrics
Electrical system / Self diagnosis, V.A.G Inspection Service
Self-diagnosis of radio systems for Golf Convertible 05.98 >
Self-diagnosis of radio systems

Final control diagnosis > < Self-diagnosis of radio systems for Golf Convertible 05.98 >

Volkswagen Workshop Service and Repair Manuals

Golf Mk3

Vehicle electrics Electrical system / Self diagnosis, V.A.G Inspection Service Self-diagnosis of radio systems for Golf Convertible 05.98 > Self-diagnosis of radio systems

Vehicle electrics Electrical system / Self diagnosis, V.A.G Inspection Service Self-diagnosis of radio systems for Golf Convertible 05.98 > Self-diagnosis of radio systems

Vehicle electrics
Electrical system / Self diagnosis, V.A.G Inspection Service
Self-diagnosis of radio systems for Golf Convertible 05.98 >
Self-diagnosis of radio systems

Vehicle electrics
Electrical system / Self diagnosis, V.A.G Inspection Service
Self-diagnosis of radio systems for Golf Convertible 05.98 >
Self-diagnosis of radio systems