Charging System — Trouble-shooting
EL-26flowchartTrouble-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 referring to the Inspection Table.
IMPORTANT
Before starting trouble-shooting, inspect the fusible link.
WITH IC REGULATOR
1
Ignition switch 'ON' (Check light for operation.) [A]
Light 'OFF'
Light 'OFF'
Light 'OFF'
Disconnect connector (S, L) and ground L lead wire. (Check light for operation.)
Light 'ON'
2
Light 'ON'
3
Engine idling (Check light for operation.)
4
Engine idling — Dim light / Light flickers / Bright light
Dim light / Light flickers / Bright light
Light 'ON'
5
Light 'OFF'
6
Engine speed: 1,500 rpm / Lighting switch 'ON' (Check light for operation.)
Dim light
Dim light
Light 'OFF'
7
Light 'OFF'
8
Engine speed: 1,500 rpm (Measure B terminal voltage)
More than 15.5V
More than 15.5V
More than 15.5V
Damaged IC-RG. Replace.
13 to 15V
9
13 to 15V
10
Make sure connector (S, L) is connected correctly.
11
Engine idling / Lighting switch 'ON' (Check light for operation.)
Light 'OFF'
Light 'OFF'
Light 'OFF'
O.K.
Light 'ON'
12
Light 'ON'
Damaged A.C.G.
Notes
- 1Use fully charged battery.
- 2Light : Charge warning light / A.C.G. : Alternator parts except IC regulator / IC-RG : IC regulator / O.K. : IC alternator is in good condition
- 3When reaching 'Damaged A.C.G.', remove alternator from vehicle and disassemble, inspect and correct or replace faulty parts.
- 4Terminals 'S', 'L', 'B' and 'E' are marked on rear cover of alternator.
See also
Inspection Table