Page text (OCR transcript)
BE-44 BODY ELECTRICAL SYSTEM — Instruments and Sender Gauges
SECTION TROUBLE
E Speedometer Brightness does not change when rheostat is turned
Only speedometer and tachometer? Yes Replace speedometer
No
Only tachometer? Yes Remove tachometer and
connect sub-harness (SST)
No
Remove meter and connect sub-
harness (SST).
①With the ignition S/W at ON position, check that
voltage between terminals 4 and 6 of tachometer
connector is more than 3V with rheostat at MAX.
OK
②With the light S/W turned ON,
does voltage between terminals 1
and 7 of sub-harness vary from 0
to 9V when rheostat is turned?
Yes Replace tachometer Replace speedometer
No
③With the light S/W turned ON,does
voltage between terminals TR and E of
rheostat vary when rheostat is operated?
No Yes
Check rheostat Bad wiring between
(See page BE-18) rheostat and meter
Remove other meters and check for No Replace speedometer
brightness change of speedometer.
Yes
Connect other meters one by one
to find bad meter.
Replace bad meter
