Principle Of Code Cycle; Code Cycle Break; Second Digit Of Malfunction Code (Ones Position); First Digit Of Malfunction Code (Tens Position) - Mazda MX-5 1990 Workshop Manual

SELF-DIAGNOSIS FUNCTION
F
Principle of Code Cycle
Malfunction codes are determined as shown below.
05UOFX·071
1 . Code cycle break
The time between malfunction code cycles is 4.0 seconds (the time the lamp is off).
1 CYCLE MALFUNCTION CODE
o~"
CYCLE BREAK
"hu
I·
.1
4.0 SEC.
05UOFX·072
2. Second digit of malfunction code (ones position)
The digit in the ones position of the malfunction code represents the number of times the buzzer sounds
0.4 second during one cycle.
N
m~ALFUNCTION CO.D~
n n
~~\5Ey~~TION
O:~_j
U
2
U
3
, CYCLE BREAK
I U U 1' - --____ _
-U--U-I. . 1
4.0 SEC.
0.4
SEC.
0.4
SEC.
3. First digit of malfunction code (tens position)
05UOFX·073
The digit in the tens position of the malfunction code represents the number of times the buzzer is on
1.2 seconds during one cycle.
It should also be noted that the light goes off for 1.6 seconds between the long and short pulses of the buzzer.
1 CYCLE MALFUNCTION CODE
. 1°.4
.+-
1.2 SEC. SEC. 1.6
SEC.
FIRST DIGIT
1 2
CYCLE
BREAK
4.0SEC.
SECOND
DIGIT
MALFU NCTION
CODE: 22
05UOFX·074
F-79