DIAGNOSTICS - CONTINUED - TM-9-2320-303-24-10144

TM 9-2320-303-24-1

ANTI-LOCK BRAKE SYSTEM TROUBLESHOOTING AND TESTING - CONTINUED

0019 00

DIAGNOSTICS - CONTINUED

Blink Code: 1

Blink Code: 2

Blink Code: 3

Fig 7. System Configuration Codes

Table 2. Blink Code Identification.

FIRST DIGIT (TYPE OF FAULT)

SECOND DIGIT (SPECIFIC LOCATION OF FAULT)

1 No Faults

2 ABS modulator valve

1 Right front steer axle (curb side)

3 Too much sensor gap

2 Left front steer axle (driver's side)

4 Sensor short or open

3 Right forward/rear tandem drive axle (curb side)

5 Sensor signal erratic

4 Left forward/rear tandem drive axle (driver's side)

6 Tooth wheel

5 Right rear-most tandem drive axle (curb side)

6 Left rear-most tandem drive axle (driver's side)

7 System function

1 J1922 or J1939 datalink

2 ATC valve (Not Used)

3 Retarder relay (third brake)

4 ABS warning lamp

5 ATC configuration (Not Used)

6 Reserved for future use

8 ECU

1 Low power supply

2 High power supply

3 Internal fault

4 System configuration error

5 Ground

NOTE

Blink code switch is located on ABS Electronic Control Unit (ECU) behind passenger's seat.

Diagnostic Mode:

To enter the diagnostic mode, press and hold the blink code switch for one second, then release.

Clear Mode:

To erase faults from the ECU, you must be in the clear mode. To enter the clear mode, press and hold the blink code

switch for at least three seconds, then release.

If the system displays eight quick flashes followed by a system configuration code, the clear was successful. The ABS

fault has been cleared from memory.

0019 00-8