
60
MicroController Control System
Troubleshooting
PROBLEM 7
Seat switch circuit defect.
POSSIBLE CAUSE
Seat switch defect; Wiring to seat defect;
Logics defect.
Disconnect seat switch connector. Push
on the seat and check the continuity
across the seat switch.
Continuity
No continuity
CHECKS
Disconnect the battery.
Disconnect DD or DE connector. Check continuity from DD-2
harness connector to DE-4. Should be closed circuit when
seat is pressed on and open circuit when seat is released.
No continuity
Constant continuity
Check OK
Replace seat switch.
Check wiring for open circuits between
harness connector DD-2 and DE-4.
Repair any open circuit found.
Disconnect seat switch connector. Push
on the seat and check the continuity
across the seat switch.
Continuity
No continuity
Replace logics.
Check wiring for short circuits
between harness connector DD-2
and DE-4. Repair any short circuit
found.
Replace seat switch.
Содержание B20S-3
Страница 3: ......