TROUBLE DIAGNOSES - Diagnostic Procedure 1 (Cont'd)
EF & EC-81flowchartDiagnostic Procedure 1 (Cont'd)
1
INSPECTION START
2
CHECK POWER SOURCE FOR E.C.U.
1) Turn ignition switch "ON".
2) Check voltage between terminals (45), (49), (59), (109) and ground.
Voltage: Battery voltage
O.K.
return to step 7
N.G. (49), (59), (109)
return to step 4
N.G. (45)
3
Check ignition switch and "G" fusible link.
4
1) Check harness continuity between ignition switch and battery (+) terminal.
Continuity should exist.
2) Check harness continuity between ignition switch and E.C.U.
Continuity should exist.
If N.G., replace harness or connector.
O.K.
5
CHECK COMPONENT (E.C.C.S. relay).
Refer to "Electrical Components Inspection".
(See page EF & EC-128.)
If N.G., replace E.C.C.S. relay.
O.K.
6
1) Check harness continuity between E.C.C.S. relay and E.C.U.
Continuity should exist.
2) Check harness continuity between E.C.C.S. relay and battery (+) terminal.
Continuity should exist.
If N.G., replace harness or connectors.
7
1) Turn ignition switch "OFF".
2) Disconnect connectors from E.C.U.
3) Check resistance between terminals (10), (20), (50), (60), (107), (108), (116) and ground.
Resistance: Approximately 0Ω
If N.G., repair harness or connectors.
O.K.
INSPECTION END