check engine light NISSAN 300ZX 1984 Z31 Electrical System Workshop Manual

CHARGING SYSTEM
Make sure "S ' termmal 8s con- IC-RG IC regulator
When reaching "Damaged
A C G.", remove
0 K. IC-alternator 16 In good condltlon nected COrreCtly
Trouble-Shooting
Before conducting an alternator test, make sure that the battery IS fully charged A 30-Volt voltmeter and
suitable test probes are necessary for the test The alternator can
be checked easily by referrmg to the
Inspection Table
Engine tdltng Lighting $witch "ON,, (Check light for operatlonl
WITH IC REGULATOR
bulb Replace and Proceed -
Wpth alternator side L terminal grounded, internal short occurs when + diode IS short-circuited @
Ignition witch "ON" cOnneCtor IS. (Check light Ll and ground for operatton1 L lead w~re Connect con-
I lH,TACHl nector IS LI far operation1 and ground F
I [Check Itght I for operation1
I (MITSUBISHI ' makel I - - - - - - - - - - - - -------- -
J
..........................
Contact poiitwe lead (+I of voltmeter on B
Lqht "OFF"
9
Engine speed 1,500 rpm
terminal and negative lead (-1 to L terminal
(Measure the "oltage acres "E" and "L"
only)
Contact tip of wlre with brush and attach wire to
alternator body -0 Light"0FF" -- OK
5) Terminals "S", "L", "BAT" and "E" are marked
on rear cover
of alternator.
Brush lift wire
SEL766D
EL-1 6