E.C.C. TROUBLE DIAGNOSES (Models with catalyzer without E.G.R.) — Diagnostic Procedure 12 (Cont'd)
EF & EC-81flowchartModels with catalyzer without E.G.R. (GA13DS, GA14DS & GA16DS engines). Distinguishes L.H.D. vs R.H.D. harness connectors.
Diagnostic Procedure 12 (Cont'd)
1
INSPECTION START
2
CHECK CONTROL FUNCTION. 1) Start engine and warm it up sufficiently. 2) Check voltage between E.C.U. terminal (17) and ground under the following conditions. Voltage: When steering wheel is turned quickly: Battery voltage; Except above: Approximately 0V
O.K.
INSPECTION END
N.G.
3
CHECK POWER SUPPLY. 1) Stop engine. 2) Disconnect power steering oil pressure switch harness connector. 3) Turn ignition switch "ON". 4) Check voltage between terminal (a) and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors (R11), (E14) (R.H.D. models) • 10A fuse • Harness continuity between power steering oil pressure switch and fuse If N.G., repair harness or connectors.
Check the following. • Harness connectors (R11), (E14) (R.H.D. models) • 10A fuse • Harness continuity between power steering oil pressure switch and fuse If N.G., repair harness or connectors.
O.K.
4
CHECK INPUT SIGNAL CIRCUIT. 1) Turn ignition switch "OFF". 2) Disconnect E.C.U. harness connector. 3) Check harness continuity between E.C.U. terminal (17) and terminal (b). Continuity should exist.
N.G.
Check the following. • Harness connectors (R11), (E14) (L.H.D. models) • Harness continuity between E.C.U. and power steering oil pressure switch If N.G., repair harness or connectors.
Check the following. • Harness connectors (R11), (E14) (L.H.D. models) • Harness continuity between E.C.U. and power steering oil pressure switch If N.G., repair harness or connectors.
O.K.
5
CHECK COMPONENT (Power steering oil pressure switch). Refer to "Electrical Components Inspection". (See page EF & EC-146.)
N.G.
Replace power steering oil pressure switch.
O.K.
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.