Diagnostic Procedure 36 (Cont'd)
EF & EC-337flowchartR.H.D. models reference harness connectors F6, E15 in the input signal circuit check.
Diagnostic Procedure 36 (Cont'd) - Power steering oil pressure switch
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INSPECTION START
2
A: CHECK CONTROL FUNCTION. 1) Start engine and warm it up sufficiently. 2) Check power steering oil pressure switch signal in "DATA MONITOR" mode with CONSULT. Steering is neutral: OFF -- OR -- 2) Check voltage between E.C.U. terminal 43 and ground. Voltage: When steering wheel is turned quickly. Approximately 0V. Except above Approximately 5V
O.K.
INSPECTION END
N.G.
3
B: CHECK GROUND CIRCUIT. 1) Stop engine. 2) Disconnect power steering oil pressure switch harness connector. 3) Check harness continuity between terminal b and body ground. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
4
C: CHECK INPUT SIGNAL CIRCUIT. 1) Disconnect E.C.U. connector. 2) Check harness continuity between E.C.U. terminal 43 and terminal a. Continuity should exist.
N.G.
Check the following. - Harness connectors F6, E15 (R.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 F6, E15 (R.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-352.)
N.G.
Replace power steering oil pressure switch.
O.K.
6
Check E.C.U. pin terminals for damage or the connection of the E.C.U. harness connector.