Dtc "48" (C1648): Supply Voltage (Decreased) - Suzuki GSF650A Service Manual

DTC "48" (C1648): Supply Voltage (Decreased)

• Faulty generator or regulator/rectifier
• Faulty ABS control unit
• Faulty wire harness, etc.
Wiring Diagram
Refer to "ABS Unit Diagram (Page 4E-8)".
Troubleshooting
Step
1 1) Remove the seat. Refer to "Exterior Parts Removal and
Installation (GSF650/S/A/SAK7) in Section 9D
(Page 9D-6)".
2) Measure the voltage between the (+) and (–) battery
terminals using the multi-circuit tester.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Battery voltage
12.0 V and more
Is the voltage over 12 V?
2 1) Start the engine at 5 000 r/min with the dimmer switch
set to HI.
2) Measure the voltage between the (+) and (–) battery
terminals.
Special tool
: 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Regulated voltage
14.0 – 15.5 V at 5 000 r/min
Is the voltage 14.0 – 15.5 V?
Possible Cause
Action
(A)
( )
( )
I717H2450010-01
Yes
Go to Step 2.
Go to Step 3.
ABS: 4E-64
B817H24504022
No
Charge or replace the
battery.
Inspect the generator
and regulator/rectifier.
Refer to "Generator
Inspection in Section 1J
(Page 1J-3)" and
"Regulator / Rectifier
Inspection in Section 1J
(Page 1J-8)".