TROUBLE DIAGNOSES - Basic Inspection (Cont'd)
EF & EC-57flowchartBasic Inspection (Cont'd)
1
B (from previous page)
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CHECK SWITCH INPUT SIGNAL. Select the following switches in "DATA MONITOR" mode, a) Start signal, b) Idle position, c) Air conditioner signal, d) Neutral (Parking) switch, e) Power Steering switch, f) Load switch and check the switches ON-OFF operation. — OR — Remove lower centre console panel to gain access to E.C.U. Remove E.C.U. securing bolts from bracket and position E.C.U. for optimum accessability. Check the above switches ON-OFF operation using voltmeter at each E.C.U. terminal.
N.G.
Repair or replace the malfunctioning switch or its circuit.
O.K.
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READ SELF-DIAGNOSTIC RESULTS. 1. Perform "SELF-DIAG RESULTS" mode. 2. Read out self-diagnostic results. — OR — 1. Set "Self-diagnostic results mode" in mode II. 2. Count the number of RED L.E.D. flashes from the E.C.U. indicator.
N.G.
Go to the relevant inspection procedure.
O.K.
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C (Go to C on next page)
Start signal (34)
ConditionIGN ON → IGN START
Voltage (V)0 → Battery voltage
Idle position (20)
ConditionAccelerator pedal released → Accelerator pedal fully depressed
Voltage (V)Approx. 0.5V → Approx. 4V
A/C signal (41)
ConditionA/C OFF → A/C ON (Engine running)
Voltage (V)Battery voltage → Approx. 0V
Neutral (Parking switch) (35)
ConditionShift lever in Neutral position → Except Neutral position
Voltage (V)0V → Approx. 5V
Power steering switch (43)
ConditionSteering wheel Neutral position (Engine off) → Steering wheel Lock position (Engine on)
Voltage (V)0V → Approx. 5V
Load Signal Switch (33)
ConditionSwitch "OFF" → Switch "ON"
Voltage (V)Battery Voltage → 0V