Trouble Diagnoses — Diagnostic Procedure 6 (Cont'd)
EF & EC-92flowchartDiagnostic Procedure 6 (Cont'd)
1
⊕ (entry from previous page)
2
CHECK OUTPUT SIGNAL.
1) Reconnect power transistor harness connector.
2) Reconnect E.C.U. harness connector.
3) Reconnect ignition coil harness connector.
4) Start engine.
5) Make sure that pulse signals exist between E.C.U. terminals ①, ②, ③, ⑪ and ground with logic probe.
Pulse signal should exist.
N.G.
CHECK COMPONENT (Power transistor).
CHECK COMPONENT (Power transistor).
Refer to "Electrical Components Inspection".
(See page EF & EC-125.)
O.K.
3
CHECK HARNESS CONTINUITY BETWEEN POWER TRANSISTOR AND IGNITION COIL.
1) Stop engine and turn ignition switch "OFF".
2) Disconnect power transistor harness connector and ignition coil harness connector.
3) Check continuity between terminals ⓐ and ①, ⓑ and ②, ⓒ and ③, ⓓ and ④.
Continuity: Approximately 0Ω
N.G.
1) Check middle harness connector.
1) Check middle harness connector.
2) Repair harness or connectors.
O.K.
INSPECTION END