E.C.C. TROUBLE DIAGNOSES (Models with catalyzer without E.G.R.) — Diagnostic Procedure 7 (Cont'd)
EF & EC-69flowchartHarness connector references differ between L.H.D. and R.H.D. models in both the power supply check and output signal circuit check.
Diagnostic Procedure 7 (Cont'd)
1
INSPECTION START
2
CHECK OVERALL FUNCTION. 1) Start engine and warm it up sufficiently. 2) Stop engine. 3) Turn ignition switch "ON". 4) Listen to fuel cut solenoid valve operating sound. Clicking noise should be heard.
O.K.
INSPECTION END
N.G.
3
CHECK POWER SUPPLY. 1) Turn ignition switch "OFF". 2) Disconnect carburetor harness connector E218. 3) Turn ignition switch "ON". 4) Check voltage between terminal g and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors M11, E1A • Harness connectors E5, E204 (L.H.D. models) • Harness connectors E5A, E201 (R.H.D. models) • 10A fuse • Harness continuity between carburetor and fuse If N.G., repair harness, fuse or connectors.
Check the following. • Harness connectors M11, E1A • Harness connectors E5, E204 (L.H.D. models) • Harness connectors E5A, E201 (R.H.D. models) • 10A fuse • Harness continuity between carburetor and fuse If N.G., repair harness, fuse or connectors.
O.K.
4
CHECK OUTPUT SIGNAL CIRCUIT. 1) Turn ignition switch "OFF". 2) Disconnect E.C.U. harness connector. 3) Check harness continuity between E.C.U. terminal 6 and terminal 9. Continuity should exist.
N.G.
Check the following. • Harness connectors E5, E204 (L.H.D. models) • Harness connectors E5, E194 (R.H.D. models) • Harness continuity between E.C.U. and carburetor If N.G., repair harness or connectors.
Check the following. • Harness connectors E5, E204 (L.H.D. models) • Harness connectors E5, E194 (R.H.D. models) • Harness continuity between E.C.U. and carburetor If N.G., repair harness or connectors.
O.K.
5
CHECK COMPONENT (Fuel cut solenoid valve). Refer to "Electrical Components Inspection". (See page EF & EC-145.)
N.G.
Replace fuel cut solenoid valve.
O.K.
6
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.