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 conditions

• ● Coolant temperature must be at least 80 °C, =>display group 04, display zone 3.

Functional check

• ‒ Connect fault reader V.A.G 1551 (V.A.G 1552). Start engine and select "Address word" 01 of engine control unit. When doing this the engine must be running at idling speed.
  (Connecting fault reader and selecting engine control unit .)

• ‒ Press keys 0 and 4 for the "Introduce basic setting" function and confirm entry with Q key.

• ‒ Press keys 0, 4 and 3 for "Display group number 43" and confirm entry with Q key.

• ‒ Depress brake pedal and hold.
• ‒ Press accelerator pedal to wide-open position.

• The engine speed is increased by the control unit to
      approx. 2 300 rpm.

• ‒ Maintain increased idling speed until the display
      in display zone 4 jumps from "Test OFF" to "Test ON". The catalyst temperature in
      display zone 2 must be at least 350 °C.

Note:

This process can take a few minutes.

• ‒ Maintain the increased engine speed until the display
      in display zone 4 shows the specification "B1-P2 OK.

If the display does not indicate as described:

• ‒ Carry out a road test to free Lambda probe of possible residues and repeat the test.

Observe the valid safety precautions when carrying out a road test => Page 24-32.

If the specifications are again not attained:

• ‒ Renew Lambda probe after catalyst (G130).

Note:

If the Lambda probe is renewed, the learnt values in the engine control unit must be erased => Page 24-148

• ‒ Interrogate fault memory, if necessary, repair any faults and then erase fault memory => Page 01-16, interrogating and erasing fault memory.
• ‒ Read-out the readiness code=> Page 01-64.