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STEP 4: Blink Codes for Knorr-Bremse Gamma 2E System ECU

  1. Use the table to identify ABS faults from the ECU Blink Codes recorded in STEP 3: Blink code identification and system response
  2. Links to solutions for common ABS faults can also be found below
  3. Please ensure all necessary Health and Safety precautions are implemented before commencing any repair work
  4. A list of useful ABS Diagnostic Tools is available on this website
  5. If you require further help or information, please contact us

Knorr-Bremse Gamma 2E System ECU

Block 1

Blocks 2 and 3

Blink Code

Configuration

Blink Code

Fault

2

ABS only - 24V

1

No faults

3

ABS with ASR engine power control - 24V

2

Internal ECU fault

4

ABS with ASR brake activation - 24V

3

Wheel speed sensor front air gap too big

5

ABS with ASR brake activation and ASR engine control - 24V

4

Wheel speed sensor rear air gap too big

6

ABS only - 12V

6

Wheel speed sensor front open circuit

7

ABS with ASR engine power control - 12V

7

Wheel speed sensor rear open circuit

8

ABS with ASR brake activation - 12V

9

Low voltage or valve relay not operational

9

ABS with ASR brake activation and ASR engine control - 12V

10

Pressure control valve - front valve faulty

10

ABS only with select low at front axle - 24V

11

Pressure control valve - rear valve faulty

11

ABS with SL at front axle and ASR engine control - 24V

13

Valve relay burnt, sticking

12

ABS with SL at front axle and ASR brake activation - 24V

14

Path: ASR-Valve brake activation

13

ABS with SL at front axle, ASR engine control and ASR brake activation - 24V

14

ABS only with select low at front axle - 12V

15

ABS with SL at front axle and ASR engine control - 12V

16

ABS with SL at front axle and ASR brake activation - 12V

17

ABS with SL at front axle, ASR engine control and ASR brake activation - 12V

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