Page 164 - Foton Workshop Manual - Auman EST-M

DI - 110 Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts

Failure phenomenon list

Use the list below to help you find the reasons of failures. The number represents the order of failure reason
possibility. Check each part according to the order and replace it when necessary.

Failure phenomenon Possible reason Failure elimination

1. ABS power failure Overhaul the power supply circuit

The diagnosis instrument cannot 2. Failure of harness between ABS and
Check, repair or replace relevant harness
communicate with ABS diagnosis instrument
3. ABS failure Replace ABSECU

Check and repair the ABS power supply
1. ABSECU power ground circuit failure
and grounding circuit

Ignition switch trips from "LOCK" to Check and repair the ABS failure
2. ABS failure indicator circuit failure
indicator circuit
"ON", ABS fault indicator is not on
3. ABSECU broken Replace ABSECU

4. Combination instrument broken Replace the combination instrument
Read the fault code, and refer to the fault
1. ABS system is faulty
Ignition switch trips from "LOCK" to code table to troubleshoot
"ON", ABS fault indicator is always on 2. ABS fault indicator line-to-ground Check and repair the ABS failure
short circuit indicator circuit

1. ABS system harness and plug are Maintain the ABS system harness or
damaged or incorrectly connected plug

2. There are many foreign materials Clean up the foreign material between
between sensor and gear ring and there sensor and ring gear or replace ABS
ABS does not work is a large gap sensor bushing

3. Deficiency of teeth of gear ring Replace the gear ring

4. Sensor damaged Replace the wheel speed sensor

5. Solenoid valve leaks or is damaged Replace the ABS solenoid valve

DI-110