SEAT Workshop Service and Repair Manuals

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

• ◆ Fault reader V.A.G 1551 or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3
• ◆ Test box V.A.G 1598/31
• ◆ Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
• ◆ Adapter set V.A.G 1594
• ◆ Current flow diagram

Check conditions

• ● → Fuse No. 3 must be OK.
• ● The battery voltage must be at least 11.5 V.

Test sequence

• ‒ Connect the fault reader V.A.G 1551 (V.A.G 1552). Then switch ignition on and select engine control unit with the "Address word" 01.
  (Connecting fault reader and selecting engine control unit .)

• ‒ Press keys 0 and 8 for the function "Read measured value block" and confirm entry with Q key.

• ‒ Press keys 0, 6 and 6 for "display group 66" and confirm with Q key.

• ‒ Observe values displayed in display zone 2 (2nd digit from left).
      Specification: x 0 x x
• ‒ Depress clutch pedal fully and observe values in display zone 2.
      Specification: x 1 x x
• ‒ Press the ⇒key.
• ‒ Press keys 0 and 6 for the "End output" function and confirm input with the Q key.
• ‒ Switch off ignition.

If the specification is not obtained:

• ‒ Remove shelf on driver's side:

=> General body repairs, interior; Repair group 68; Dash panel; Removing driver's side shelf

• ‒ Pull the connector off the clutch pedal switch.
• ‒ → Connect multimeter to measure resistance between contacts 1 and 2.
      Specification: approx. 0 ω
• ‒ Depress the clutch pedal.
      Specification: ∞ ω (no continuity)

If the specification is not attained:

• ‒ Renew clutch pedal switch.

If the specification is obtained:

• ‒ → Connect multimeter using aux. cables from V.A.G 1594 to measure voltage between contact 1 and earth. Then switch ignition on.
      Specification: At least 11.5 V

If the specification is not attained:

• ‒ Check wiring between 2-pin connector contact 1 and fuse holder using current flow diagram.

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

If the specification is obtained:

• ‒ Remove battery.

• ‒ → Connect test box V.A.G 1598/31 to control unit wiring harness. The engine control unit remains disconnected.
• ‒ Check wiring between test box and 2-pin connector for open circuit using current flow diagram.
      Contact 2+socket 39
      Wire resistance: Max. 1.5 ω
• ‒ Additionally check wires for short to one another.
• ‒ Additionally check the wiring for short to battery positive or earth.