E.C.C. TROUBLE DIAGNOSES (Models with catalyzer without E.G.R.) — Diagnostic Procedure 9 (Cont'd)

EF & EC-73flowchart

Models with catalyzer without E.G.R. (GA13DS, GA14DS & GA16DS engines). Distinguishes L.H.D. vs R.H.D. harness connectors.

Continued from EF & EC-72

Diagnostic Procedure 9 (Cont'd)

INSPECTION START

CHECK OVERALL FUNCTION. 1) Make sure that engine is cold. [Engine temperature is below 65°C (149°F).] 2) Turn ignition switch "ON". 3) Listen to idle-up control solenoid valve operating sound. Clicking noise should be heard.

O.K.

INSPECTION END

N.G.

CHECK POWER SUPPLY. 1) Turn ignition switch "OFF". 2) Disconnect carburetor harness connector. 3) Turn ignition switch "ON". 4) Check voltage between terminal (b) and ground. Voltage: Battery voltage

N.G.

Check the following. • Harness connectors (R11), (E14) • Harness connectors (E5), (E26) (L.H.D. models) • Harness connectors (C56), (E61) (R.H.D. models) • 10A fuse • Harness continuity between carburetor and fuse If N.G., repair harness, fuse or connectors.

O.K.

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 (c) and terminal (e). Continuity should exist.

N.G.

Check the following. • Harness connectors (175), (E130) (L.H.D. models) • Harness connectors (175), (E124) (R.H.D. models) • Harness continuity between E.C.U. and carburetor If N.G., repair harness or connectors.

O.K.

CHECK COMPONENT (Idle-up control solenoid valve). Refer to "Electrical Components Inspection". (See page EF & EC-145.)

N.G.

Replace idle-up control solenoid valve.

O.K.

Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.

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E.C.C. TROUBLE DIAGNOSES (Models with catalyzer without E.G.R.) — Diagnostic Procedure 9 (Cont'd)

Diagnostic Procedure 9 (Cont'd)

See also

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