Mazda MX-5 1990 Workshop Manual page 664

T
T-82
LIGHTING SYSTEM
05UOTX-172
05UOTX-173
Inspection
CAL unit
Note
• While performing the following inspection, apply
12V to terminal j and ground terminal i.
1. Apply 12V to terminal c, and measure the voltage at termi-
nals d and k.
Terminal
Voltage
d
12V
k
12V
2. If not as specified, replace the DRL unit.
3. Remove 12V from terminal c.
4. Apply 12V to terminals f and h, and measure the voltage
at terminals d and k.
Terminal Voltage
d 12V
k
12V
5. If not as specified, replace the DRL unit.
6. Remove 12V from terminals f and h.
7. Ground terminal b, and check the voltage at terminals d
and k.
Terminal
Voltage
d
12V
k
12V
8. If not as specified, replace the DRL unit.
9. Check for continuity between terminals of the DRL unit.
Terminal
Continuity
d-f Yes
h-k
Yes
10. If not as specified, replace the DRL unit.