The diagnosis codes are indicated by flashing if the DIAG LAMP. To read the diagnosis codes, connect the DIAG SW to the earth. Identify the diagnosis codes via the flashing of the DIAG LAMP as shown in the diagram below. If a diagnosis code had not been assigned to the fault, Code 12 will be displayed repeatedly.

If a diagnosis code has been assigned tot he fault, firstly, code 12 is output three times, and the flashing pattern shown is the diagram below occurs three times also (example of code 32) in ascending order of the diagnosis codes. When all diagnosis codes have been displayed, displaying code 12 will start again.

At the time of the fault, the DIAG LAMP indicates the following. DIAG LAMP flashes as shown in the diagram below where the DIAG SW is part of an open circuit. (1.25 Hz)