Turn And Hazard Warning Lights Do Not Operate (U.s. Spec.) - Mazda MX-5 1990 Workshop Manual

LIGHTING SYSTEM
T
Troubleshooting
Symptom: Turn and hazard warning lights do not operate (U.S. spec.)
HAZARD 15A
05UOTX-301
05UOTX-302
TURN AND HAZARD
WARNING FLASHER UNIT
05UOTX-131
05UOTX-130
Step 1
1. Check HAZARD 15A fuse in the fuse box.
2. If the fuse is burned replace it. Check and repair the wire
harness, if necessary.
3. If the fuse is OK, go to Step 2.
Step 2 - Check turn and hazard warning flasher unit
1. Remove the turn and hazard warning flasher unit.
2. Check continuity between terminals of the unit with an
ohmmeter.
Note
• Set the ohmmeter to x 10000 range.
Terminal
Continuity
Terminal
Continuity
Terminal
Continuity
+
I
+
I
+
I
-
-
-
a-c X d-e X
f - 9
X
a-d
X
d - f
X
f - h
X
a-e
0
d-g X g-a X
a-f
0
d-h X g-c X
a-g X e-a X g-d X
a-h
X
e-c
X
g-e
X
c-a
0 e-d X
9 - f
X
c-d
0
e-f X
g-h
X
c-e
0
e-g X h-a
0
c - f
0
e-h X h-c 0
c-g 0 f - a X h-d
0
c-h
0
f-c
X
h-e
0
d-a
X f - d X h - f 0
d-c X
f - e
X
h-g
0
0: Indicates continuity X: No continuity
3. If not as specified, replace the flasher unit.
4. If the flasher unit is OK, reconnect the connector and go
to Step 3.
Step 3
1. Remove the knee protector, then disconnect the turn sig-
nal switch connector.
2. Check continuity between terminals of the switch.
I
FU TL TR
Position
Left
0 -0
Right
0 -0
0---0: Indicates continuity
3. If not as specified, replace the turn signal switch.
4. If the turn Signal switch is OK, reconnect the connector and
go to Step 4.
T-63