BLINK CODE DESCRIPTION
When a fault occurs in the ABS, the dashboard ABS warning light indicates a problem, and the fault is stored in the memory of the ECU. The ECU blink codes will help you determine what the problem is.
The test plug for activating the blink code system and the lamp that flashes the codes, are located inside the ECU (see top diagram above). If the test plug is missing, the blink codes can be activated by connecting pin 6 to pin 10 on the black module in the ECU.
TYPES OF FAULTS
There are two types of faults that can be stored in the ECU memory:
- Intermittent faults, and
- Existing faults
A stored, or intermittent fault, identifies a failure that did occur but does not exist at
present. Examples could be a loose wire or erratic sensor signal, which could occur whilst the vehicle is in motion. A stored, or intermittent fault, can be erased from the ECU memory. It can be difficult to locate and repair an intermittent fault because you may not be able to easily see the cause of the problem. Keep a record of intermittent faults before you erase them to help isolate the problem.
An existing fault is a problem that exists currently. it is stored in the ECU memory, and cannot be erased until you correct the problem.
There can be more than one fault stored in the memory of the ECU. Faults are stored in numerical order. You must erase the fault shown before you can see the next fault. You cannot erase a fault if it has not been corrected. When you have erased all the faults, the ECU will show the blink code for, "No Faults - System O.K." (X-0-0) where 'X' represents the configuration code, a number from 1 to 9.