
67
MicroController Control System
Troubleshooting
PROBLEM 14
Accelerator circuit defect.
POSSIBLE CAUSE
Wiring defect; Accelerator defect; Logics defect.
CHECKS
With the key switch on, the seat switch closed,
park brake released and connect multimeter
positive lead to DC-3, negative lead to DC-2.
Measure the voltage.
8~12 volts
Other voltage
Connect multimeter positive lead to DC-1,
negative lead to DC-2. Measure the voltage;
accelerator pedal released : 0 volt.
Press accelerator pedal to max. : 7 to 11 volts.
Check OK
Check failed
Replace logics.
Replace accelerator.
Disconnect DD and DE connector.
Push down the accelerator pedal.
Check continuity from DD-2 to DE-7.
Continuity
No continuity
Repair or replace wire.
Check continuity of wire #7.
Continuity
No continuity
Check continuity from Pin6 of accelerator
harness connector to DD-2(wire #4).
Continuity
No continuity
Replace accelerator.
Repair or replace wire.
Repair or replace wire.
Содержание B20S-3
Страница 3: ......