E.C.C. TROUBLE DIAGNOSES (Models with catalyzer without E.G.R.) — Diagnostic Procedure 6 (Cont'd)
EF & EC-65flowchartHarness 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 6 (Cont'd)
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INSPECTION START
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CHECK OVERALL FUNCTION. 1) Inspect and adjust idle speed and mixture ratio. (Refer to page EF & EC-156.) 2) Stop engine. 3) Disconnect exhaust gas sensor harness connector and A.I.V. control solenoid valve harness connector. 4) Set "CO"-meter on test take-off tube. 5) Start engine and run it at idle. 6) Check idle "CO"%. Idle "CO"%: 0.5 - 1.5% = α%. If N.G., adjust idle "CO"%. (Refer to page EF & EC-156.) 7) Disconnect carburetor harness connector E211. 8) Recheck idle "CO"%. Idle "CO"%: more than α%.
O.K.
INSPECTION END
N.G.
3
CHECK POWER SUPPLY. 1) Stop engine. 2) Turn ignition switch "ON". 3) Check voltage between terminal e and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors M11, E1A • Harness connectors E1, 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 or connectors.
Check the following. • Harness connectors M11, E1A • Harness connectors E1, 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 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 f and terminal 1. Continuity should exist.
N.G.
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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.