Blink Code | Location | Type of Fault | Action Required |
2-1 | Right front steering axle | ABS modulator valve | Check ABS modulator valve, valve cable, and connectors 12-volt system: Verify 4.0-9.0 ohms resistance (ABS modulator valve) 24-volt system: Verify 11.0-21.0 ohms resistance (ABS modulator valve) Refer to service information provided by manufacturer |
2-2 | Left front steering axle |
2-3 | Right rear drive axle |
2-4 | Left rear drive axle |
2-5 | Right rear/additional axle |
2-6 | Left rear/additional axle |
3-1 | Right front steering axle | Too much sensor gap | Adjust wheel sensor to touch tooth wheel Check sensor gap Check for loose wheel bearings or excessive hub runout Verify minimum 0.2 volts AC output @ 30 RPM |
3-2 | Left front steering axle |
3-3 | Right rear drive axle |
3-4 | Left rear drive axle |
3-5 | Right rear/additional axle |
3-6 | Left rear/additional axle |
4-1 | Right front steering axle | Sensor short circuit, or open circuit | Check sensor, sensor cable, and connectors Verify 900-2000 ohms resistance Repair or replace as needed |
4-2 | Left front steering axle |
4-3 | Right rear drive axle |
4-4 | Left rear drive axle |
4-5 | Right rear/additional axle |
4-6 | Left rear/additional axle |
5-1 | Right front steering axle | Sensor signal erratic | Check for tyre size mismatch or tooth wheel difference Check sensor, sensor cable, and connector for intermittent contact |
5-2 | Left front steering axle |
5-3 | Right rear drive axle |
5-4 | Left rear drive axle |
5-5 | Right rear/additional axle |
5-6 | Left rear/additional axle |
6-1 | Right front steering axle | Tooth wheel | Check for damaged tooth wheel. Repair or replace as needed |
6-2 | Left front steering axle |
6-3 | Right rear drive axle |
6-4 | Left rear drive axle |
6-5 | Right rear/additional axle |
6-6 | Left rear/additional axle |
7-1 | J1939 datalink | System function | Check for correct J1939 data link connection Verify correct sensor adjustment. Refer to sensor adjustment information |
7-2 | ATC valve | System function | Check ATC Valve, valve cables, and connectors Verify 7 to 14 ohms resistance for a 12-volt system, 28-49 ohms resistance for a 24-volt system |
7-3 | Retarder relay (third brake) | System function | Check retarder (third brake) connections |
7-4 | ABS indicator lamp | System function | Check ABS indicator light connections Verify blink code switch was activated longer than 16 seconds |
7-5 | ATC configuration | System function | Verify proper ATC set-up |
7-6 | RSC valve | System function | Check RSC valve Verify 7 to 14 ohms resistance |
8-1 | Low power supply | ECU | Check for low voltage Check vehicle voltage, fuse, and supply to ECU (9.5-14 volts) |
8-2 | High power supply | ECU | Check for high voltage Check vehicle voltage (9.5-14 volts for a 12-volt system, 18-30 volts for a 24-volt system) Verify accuracy of blink code and clear from ECU memory |
8-3 | Internal fault | ECU | Verify accuracy of blink code and clear from ECU memory |
8-4 | System configuration error | ECU | Verify all ECU connectors are in place Verify accuracy of blink code and clear from ECU memory If code does not clear, it may be necessary to replace the ECU |
8-5 | Ground | ECU | Check all ABS, ECU, ATC and RSC valve grounds |
8-6 | RSC accelerometer | ECU | Verify accuracy of blink code and clear from ECU memory |