Volkswagen Workshop Service and Repair Manuals

Special tools, testers and auxiliary items

Vehicles ▸ 07.93

• ◆ Fault reader V.A.G 1551 with cable V.A.G 1551/1

Vehicles 08.93▸

• ◆ Fault reader V.A.G 1551 with cable V.A.G 1551/3

Note:

The vehicle system tester V.A.G 1552 can be used instead of the fault reader V.A.G 1551, however a print-out is not possible.

Check conditions

• ● Fuse 21 or 22 OK.
• ● Battery voltage at least 11 V
• ● Earth connections on gearbox or engine OK.
• ● Air conditioner switched off

Work sequence

Vehicles ▸ 07.93

• ‒ → Unclip covers for diagnostic connections below the heating/ventilation controls.
• ‒ Connect fault reader (or vehicle system tester) with cable V.A.G 1551/1 as follows:
• ‒ First connect black plug for the fault reader voltage supply to black diagnostic socket.
• ‒ Connect white plug to white diagnostic socket. (The blue plug is not required.)

Vehicles 08.93 ▸

• ‒ → Open ashtray, remove if necessary and slide cover for diagnostic connections to left -arrow-.
• ‒ Connect fault reader (or vehicle system tester) with cable V.A.G 1551/3.

After the fault reader has been connected:

• ‒ Depending upon desired function:
  Switch on ignition
       or
  Start engine , Table "Selectable functions".

Notes:

• ◆ If the display does not indicate as described in the work sequence:

=> Fault reader operating instructions

• ◆ If due to an input fault "Fault in the data transfer!" is displayed, pull wire off fault reader, reconnect and repeat work step.

• ‒ Operate fault reader taking into account the information on the display:
• ‒ Input 1 for "Rapid data transfer".
• ‒ Input 01 for address word "Engine electronics" and confirm with Q.

• ◆ 1HO 907 311A = Part No. of the control unit
• ◆ 1.8 ltr. = Engine capacity
• ◆ R4 = Type of engine (4 Cyl. in-line engine)
• ◆ MONO = Injection system (Mono-Motronic)
• ◆ D11 = Programme level number
• ◆ Coding 01 = Coding variants

• ‒ Press ⇒ key.

• ‒ Further measures see repair procedures.