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Fault table > < Gearbox: Electrical check

Leon Mk1

Self-diagnosis for 5-speed automatic gearbox 09B
Performing self-diagnosis
Performing self-diagnosis
Warning!
  • ◆ You must always secure testing and measuring equipment on the back seat..
  • ◆ These devices may be operated only by a passenger during a test drive.
 
W00-0706

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

  • ◆ VAS 5051 Vehicle diagnosis, testing and information system

Additional information

  • ◆ Vehicle diagnosis, testing and information system VAS 5051; User's Handbook (order no. 7KE3180-1AE)
  • ◆ Workshop Manual Alhambra 1996 ▸, 5-speed automatic gearbox 09B
  • ◆ "Current flow diagrams, Electrical fault finding and Fitting locations" binder Alhambra 1996 ▸"
  • ◆ Technical service handbook
  • ◆ Parts catalogue

Test conditions:

  • ● Selector lever in position "P" and handbrake applied.
 
N24-0588
  • ● Vehicle voltage supply in order.
  • ● Fuses 7, 11, 13, 15 and 31 OK.
  • ● Fuses OK according to current flow diagram
  • ● Fuses in main fuse box OK.
  • ● Check earth connections for gearbox:
  • ‒ Check earth connections for corrosion and poor contact; repair if necessary.
  • ‒ Earth connection point is located below battery.
 
N01-0433
  • ‒ Check battery earth strap and earth strap between battery and gearbox.

Connect vehicle diagnosis, testing and information system VAS 5051

  • ‒ → Switch on tester -arrow-.

The tester is operational when it displays a picture of a car.

  • ‒ Connect diagnosis cable connector VAS 5051/1 or VAS 5051/3 to diagnosis connection.

Locations of diagnosis connections

The vehicle could have the diagnosis connection at various places depending on the year of manufacture. A clear indication of where the connection is located can be found in

=> Automatic gearbox 09B; Repair group 37; Location of diagnosis connections

  • ‒ Switch on ignition.
  • ‒ Touch the field "Vehicle Self-diagnosis" on the touch screen.

Example of screen display:

Vehicle self-diagnosis

Select vehicle system

00 -

Interrogate fault memory - entire system

01 -

Engine electronics

21 -

Engine electronics I

41 -

Engine electronics II

02 -

Gearbox electronics

65 -

Tyre pressure monitoring

03 -

Brake system electronics

23 -

Brake servo

12 -

Clutch electronics

44-

Steering assistance

"

"

"

"

"

"

Test instruments

Go to

Print

Help

You can press 00 - Interrogate fault memory - entire system. Then the tester will interrogate all fault memories.

If you want to select only the gearbox control unit:

  • ‒ Press 02 - Gearbox electronics.

Now the following diagnosis functions (among others) will be displayed on the screen:

Diagnosis function overview

On the screen of the VAS 5051:

Page

02 -

Interrogate fault memory

01-15

04 -

Basic setting

01-32

05 -

Erase fault memory

01-30

06 -

End output

08 -

Read measured value block

01-34

Further functions in this display need not be considered.

Interrogating fault memory

  • ‒ Press 02 - Interrogate fault memory.
 
→ The number of stored faults or "No fault recognised" appears in the display.
X Faults recognised!
  • ‒ For a list of all faults, refer to => 01-17.

Displayed on screen

No fault recognised!

If "No fault recognised" appears after repairs are performed, the self-diagnosis is completed.
In the event that the automatic gearbox does not shift properly despite self-diagnosis, the cause can be found using the operating mode "guided fault finding". Refer also to the
=> binder "Fault finding, Power transmission", No. 14

Control unit identification

The control unit identification is displayed at the top right of the screen after the gearbox control unit is selected in the operating mode "vehicle self-diagnosis".

Example:

Displayed in top right of screen

means:

02-Gearbox electronics
09B927750 A
G5 Gearbox 2009

Name of system
Part number; the letter A = automatic
G 5 = gearbox 5-speed; 2009 = software version

Fault table > < Gearbox: Electrical check