Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Supra 1986-1987.1990.1995.1997 Approved Toyota Supra MK3 1987 Toyota-7M-Manual-Charging-S
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`:CHARG!NG SYSTEM
Page
PRECAUTIONS ..,**....*..*..,,*....,,.*........ CH-2 *
TROUBLESHOOTING ,,..*.....*..........*..... CH-2
CH.ARGlNG SYSTEM CIRCUIT ..,n....*.,.,.*...m C.H-3
ON-VEHICLE INSPECTION .,...,....`.,,......*~ w-3
ALTERNATOR ,,,~,..,*~.......~....,*,,...~.... CH-7
CH-2 CHARGING SY&EM - Precautions, Troubleshooting
._
: PRECAUTIONS
1. Check that the battery cables are connected to the
correct terminals.
2. Disconnect the battery cables when the battery is
given a quick charge.
3. Do not perform tests with a high voltage insulation
resistance tester.
4. Never disconnect the battery while the engine is run-
ning.
TROUBLESHOOTING
Problem Possible cause Remedy Page
Discharge warning Fuse blown Check "CHG" and
light does not light "IGN" fuses
with ignition ON and Light burned out Replace light
engine not `running
Wiring connection loose Tighten loose connections
IC regulator faulty Replace IC regulator CH-7
Discharge warning Drive belt loose or worn Adjust or replace drive belt CH-4
light does not go out Battery cables loose, corroded or worn Repair or replace cables
with engine running
Fuse blown Check "ENG" fuse
(battery requires fre-
quent recharging Fusible link blown Replace fusible link
IC regulator or alternator faulty Check charging system CH-3
Wiring faulty Repair wiring
Ignition Switch Fuse
AM2 -0p IG2 (MA) 15~4
c (MS) 7.5A
:usible
.ink
4LT
MA/ Fusible
`M-GE) Link
,258 AM2 30A
I
8
i
I .
:usible
-ink (MA) (MS) I i
I/IAIN 2.OLI
P
T Battery /
CHG 7.5 A m
Alternator
1 ON-VEHICLE
1.
INSPECTION
CHECK BATTERY SPECIFIC GRAVITY
(a) Check the specific gravity of each cell.
Standard specific gravity
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