Diagnostic Procedure 31 (Cont'd)
EF & EC-317flowchartL.H.D. models use harness connectors F24/M56 and M11/E104; R.H.D. models use harness connectors F6/E35.
Diagnostic Procedure 31 (Cont'd)
1
INSPECTION START
2
CHECK CONTROL FUNCTION. 1) Start engine. 2) Check voltage between E.C.U. terminals 101, 110, 103, 112 and ground. Voltage: Battery voltage
O.K.
INSPECTION END
N.G.
3
CHECK POWER SUPPLY. 1) Stop engine. 2) Disconnect injector harness connector and E.C.U. harness connector. 3) Check voltage between terminal (s) and ground. Voltage: Battery voltage 4) Disconnect E.C.C.S. relay. 5) Check harness continuity between E.C.U. terminal 109 and terminal (s). Continuity should exist.
N.G.
Check the following. - Harness connectors F24, M56 (L.H.D. models) - Harness connectors M11, E104 (L.H.D. models) - Harness connectors F6, E35 (R.H.D. models) - "BR" fusible link - Harness continuity between battery and injector - Harness continuity between E.C.U. and E.C.C.S. relay. If N.G., repair harness or connectors.
Check the following. - Harness connectors F24, M56 (L.H.D. models) - Harness connectors M11, E104 (L.H.D. models) - Harness connectors F6, E35 (R.H.D. models) - "BR" fusible link - Harness continuity between battery and injector - Harness continuity between E.C.U. and E.C.C.S. relay. If N.G., repair harness or connectors.
O.K.
4
CHECK OUTPUT SIGNAL CIRCUIT. 1) Check harness continuity between terminal (a) and E.C.U. terminals 101, 110, 103, 112. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
5
CHECK COMPONENT (Injector). Refer to "Electrical Components Inspection". (See page EF & EC-351.)
N.G.
Replace injector.
O.K.
6
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.