Diagnostic Procedure 22 (Cont'd)
EF & EC-562flowchartL.H.D. models use harness connectors F34/M36 and M11/E104; R.H.D. models use F10/E15. SR20DET section.
Diagnostic Procedure 22 (Cont'd)
1
A (continued from previous page)
2
E CHECK VOLTAGE BETWEEN E.C.U. AND GROUND. 1) Check voltage between E.C.U. terminal 48 and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors F34, M36 (L.H.D. models) • Harness connectors M11, E104 (L.H.D. models) • Harness connectors F10, E15 (R.H.D. models) • 25A fusible link • Harness continuity between E.C.U. and battery. If N.G., repair harness or connectors.
Check the following. • Harness connectors F34, M36 (L.H.D. models) • Harness connectors M11, E104 (L.H.D. models) • Harness connectors F10, E15 (R.H.D. models) • 25A fusible link • Harness continuity between E.C.U. and battery. If N.G., repair harness or connectors.
O.K.
3
F CHECK GROUND CIRCUIT. 1) Check harness continuity between E.C.U. terminals 29, 48 and engine ground. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
4
G CHECK OUTPUT SIGNAL CIRCUIT. 1) Check harness continuity between E.C.U. terminal 4 and terminal 2. Continuity should exist.
N.G.
same as step 3
O.K.
5
H CHECK INPUT SIGNAL CIRCUIT. 1) Turn ignition switch "ON". 2) Check voltage between E.C.U. terminal 36 and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors F34, M36 (L.H.D. models) • Harness connectors M11, E104 (L.H.D. models) • Harness connectors F10, E15 (R.H.D. models) • Harness continuity between E.C.U. and ignition switch. If N.G., repair harness or connectors.
Check the following. • Harness connectors F34, M36 (L.H.D. models) • Harness connectors M11, E104 (L.H.D. models) • Harness connectors F10, E15 (R.H.D. models) • Harness continuity between E.C.U. and ignition switch. If N.G., repair harness or connectors.
O.K.
6
CHECK COMPONENT (E.C.C.S. relay). Refer to "Electrical Components Inspection". (See page EF & EC-635.)
N.G.
Replace E.C.C.S. relay.
O.K.
7
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.