Foton Auman BJ3251 Fault codes list – ABS
Reading and Clearing Trouble Codes for ABS
Fault codes for ABS consist of two flashing groups. The first group indicates the faulty component and the type of malfunction, while the second group indicates the fault location. There is a 1.5-second interval between the two groups. To read the trouble codes, follow these steps:
- Turn on the ignition switch.
- Press and hold the fault finding flasher switch for 1 second when the ABS fault indicator lights up and remains lit.
- Observe the number of flashes from the malfunction indicator.
If there are multiple ABS faults, the ABS fault indicator will display the trouble codes of the second flashing group 4 seconds after the completion of the first group’s fault codes. All flashing codes will be displayed in the same manner.
To clear the fault codes, perform the following steps:
- Press the diagnostic button for flashing DTCs and hold it for 1 second.
- If the flashing DTCs are repeatedly displayed (the indicator only goes off when the ignition switch is turned off), it indicates a current fault or multiple faults that need to be repaired. This is referred to as a “current fault.”
- The indicator may display fault codes differently, such as showing only one fault code once before the lamp goes off. This is known as a “stored fault” signal.
Stored faults can be divided into two types: one where the fault has been resolved but the fault code remains in the ECU memory, and the other where a malfunction occurred but there is currently no issue. For example, an intermittent wire contact may have caused a malfunction, but currently, there is no problem. Stored faults only pertain to past faults and do not require practical repairs. After completing any repairs, it is important to clear the fault codes from the memory.
To delete fault codes from the memory:
- Press the diagnostic button for flashing DTCs and hold it for 3 seconds, then release.
- If the fault indicator rapidly flashes 8 times, followed by 2 flashes, it means the DTC has been completely deleted from the memory, indicating no current malfunction.
- If the fault indicator only blinks 2 times without the rapid 8 flashes, it indicates a current fault in the ABS, necessitating repairs.
DTC table
Table of symbols for flashing codes
| Fault codes of the first group of flashing | Fault codes of the second group of flashing | ||
| Number Flashes |
Type of malfunction |
Number of blinks | Where the malfunction occurred |
| 1 | No malfunction | 1 | No malfunction |
|
2 |
Fault Electromagnetic Valve Abs |
1 |
Right front wheel |
| 3 | Large sensor Clearance | 2 | Left Front wheel |
|
4 |
Breakage or short circuit in the sensor circuit |
3 |
Right rear wheel |
| 5 | Unstable signal from the sensor | 4 | Left rear Wheel |
| 6 | Toothed Crown Damage | 5 | The right wheel of the third bridge |
| 6 | Left wheel of the third bridge | ||
|
7 |
Problems with system functions |
1 |
Problem с Port Transfer Data |
|
2 |
Malfunction of the ASR differential valve | ||
|
3 |
Fault Relay Third Support Brakes | ||
| 4 | Malfunction of the ABS indicator | ||
| 5 | ASR location problem | ||
|
6 |
Malfunction of the proportional valve ASR | ||
|
8 |
ECU malfunctions |
1 | Low voltage |
| 2 | High Voltage | ||
| 3 | Internal ECU malfunction | ||
|
4 |
Problem с Location System | ||
| 5 | Grounding problem | ||
Table of Flashing Fault Codes
|
Flashing Codes Fault |
Where faults occur and why |
|
2-1 |
Malfunction of the electromagnetic valve of the right front wheel |
|
2-2 |
Malfunction of the electromagnetic valve of the Left front wheel |
|
2-3 |
Malfunction of the solenoid valve of the right rear wheel |
|
2-4 |
Malfunction of the left rear wheel electromagnetic valve |
|
Flashing Codes Fault |
Where faults occur and why |
|
2-5 |
Malfunction of the electromagnetic valve of the right wheel of the third bridge |
|
2-6 |
Malfunction of the electromagnetic valve of the left wheel of the third bridge |
|
3-1 |
Large speed sensor clearance of the right front wheel, weak signal |
|
3-2 |
Large left front wheel speed sensor clearance, weak signal |
|
3-3 |
Large gap of the speed sensor of the right rear wheel, weak signal |
|
3-4 |
Large left rear wheel speed sensor clearance, weak signal |
|
3-5 |
Large speed sensor gap of the right wheel of the third bridge, weak signal |
|
3-6 |
Large gap of the left wheel speed sensor of the third bridge, weak signal |
|
4-1 |
Short circuit or breakage in the circuit of the speed sensor of the right front wheel |
|
4-2 |
Short circuit or breakage in the chain of the Left front wheel speed sensor |
|
4-3 |
Short circuit or breakage in the circuit of the speed sensor of the right rear wheel |
|
4-4 |
Short circuit or breakage in the chain of the left rear wheel speed sensor |
|
4-5 |
Short circuit or breakage in the circuit of the speed sensor of the right wheel of the third bridge |
|
4-6 |
Short circuit or breakage in the sensor chain of the left wheel of the third bridge |
|
5-1 |
Unstable signal from the right front wheel sensor |
|
5-2 |
Unstable signal from the left front wheel sensor |
|
5-3 |
Unstable signal from right rear wheel sensor |
|
5-4 |
Unstable signal from left rear wheel sensor |
|
6-1 |
Malfunction of the gear crown of the right front wheel |
|
6-2 |
Faulty gear crown of the Left front wheel |
|
6-3 |
Malfunction of the gear crown of the right rear wheel |
|
6-4 |
Faulty gear crown of the left rear wheel |
|
Flashing Codes Fault |
Where faults occur and why |
| 7-1 | No C3 signal or incorrect signal |
|
7-2 |
Circuit break or short circuit to ground differential valve circuit, differential failure |
|
7-3 |
Chain break or short circuit to the ground circuit electrode |
| 7-4 | Failure Signal Indicator Abs |
| 7-5 | Problem With Location Asr |
|
7-6 |
Short circuit, breakage in the chain of proportional valve |
| 8-1 | Low voltage in diagonal Ecu |
|
8-2 |
Overvoltage in diagonal 1 or diagonal 2 Ecu, failures of all valves |
| 8-3 | Internal Fault Ecu |
| 8-4 | Incorrect wheel parameters in the Eeprom |
|
8-5 |