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Home >> Volkswagen >> 1999 >> Golf Wolfsburg Edition, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Brake System - OBD (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> On Board Diagnostic (OBD), performing >> Measured value block, reading >> Test sequence and test tables with measured values >> Checking brake light switch, brake system warning lamp, ABS warning lamp and ASR/ESP warning lamp

Checking brake light switch, brake system warning lamp, ABS warning lamp and ASR/ESP warning lamp

WARNING: This page is about a different variant/trim than selected.

Display group number 003 

Indicated on display: (vehicle stationary)

Read measured value block 3 →
not oper. off off off

Press C key for the next display group number entry.

If the → key is pressed, keys 0 and 8 for work sequence "Read measured value block" must be pressed again afterward to regain entry.

Read measured value block 3 → Display group number: 003 
not oper. off off off ← Indicated on display
        ASR/ESP warning light 
  • off
  • on
      ABS warning light1) 
  • off
  • on
    Brake system warning light1) 
  • off
  • on
  Brake light switch: 
  • not oper. → Brake pedal not depressed
  • operated → Brake pedal depressed

If "not oper." is indicated on the V.A.G 1551 display despite foot brake being depressed or "operated", despite foot brake not being depressed, perform test step No. 4 of electrical check, Electrical check of Mark 60  .
It is also possible that the brake light switch is not correctly adjusted. Refer to 46 BRAKES - MECHANICAL COMPONENTS ; Brake pedal - Assembly overview; Adjusting brake light switch

1) During the diagnosis, ABS warning light -K47- and Warning light for brake system -K118- will flash.