Seat Belt Warning Lamp - Mazda MX-5 1990 Workshop Manual

T
WARNING LAMP AND SENDER UNIT
Seat Belt Warning Lamp
Note
• The seat belt warning lamp is controlled by the timer and buzzer unit.
Symptom: Seat bett warning lamp remains on six seconds after ignition
switch turned ON. (Timer function does not operate.)
Remedy
1. Disconnect the timer and buzzer unit connector.
05UOTX·076
2. Turn the ignition switch ON, and verify that the seat belt
warning lamp illuminates.
Warning lamp illuminates Action
No Replace timer and buzzer unit
Yes
Repair wiring harness
(Instrument cluster - timer and buzzer unit)
Symptom: Seat belt warning lamp does not illuminate when ignition switch first turned ON.
0
«D)
CHARGE
BRAKE
a ~~~
/
"-
CHECK
BELTS
05UOTX·078
0
((D)
CHARGE
MAKE
a
~~
CHECK
./
"-
BELTS
05UOTX·079
T-42
05UOTX·294
Step 1
1. Ground terminal
J
of the timer and buzzer unit connector.
2. Turn the ignition switch ON, and verify that the seat belt
warning lamp illuminates.
Warning lamp illuminates Action
No Go to Step 2
Yes
Repair wiring harness
(Timer and buzzer unit-body ground)
Step 2
1. Ground terminal 0 of the timer and buzzer unit connector.
2. Turn the ignition switch ON, and verify that the seat belt
warning lamp illuminates.
Warning lamp illuminates Action
Yes Replace timer and buzzer unit
Check bulb of seat belt warning lamp
No If bulb is OK, repair wiring harness
(Instrument cluster-timer and buzzer unit)