Contents Section: Automatic Transmission Electronic Controlled (ECT) - U241E/U140F - Diagnostics: Diagnosis All sections

PROBLEM SYMPTOMS TABLE Toyota Highlander I рестайлинг

PROBLEM SYMPTOMS TABLE

HINT

If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check the electrical circuits for each symptom in the order given in the charts on the following pages and proceed to the page given for troubleshooting.

The Matrix Chart is divided into 2 chapters.

Scheme 182

Scheme 182: PROBLEM SYMPTOMS TABLE

Scheme 183

Scheme 183
  1. Chapter 1: Electronic Circuit Matrix Chart Refer to the table below when the trouble cause is considered to be electrical. If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart of each circuit, proceed to the circuit with the next highest number in the table to continue the check. If the trouble still occurs even though there are no abnormalities in any of the other circuits, check and replace the ECM. HINT: *1: When the circuit on which mark *1 is attached is a malfunction, DTC could be output (See «DIAGNOSTIC TROUBLE CODE CHART»(ref-226384-S42887148392006032700000) ).
  2. Chapter 2: On-Vehicle Repair and Off-Vehicle Repair (*: See «OVERHAUL - U140E & U140F»(ref-153292) article )

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Scheme 184: TERMINALS OF ECM

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Scheme 192
  1. ECM HINT: Each ECM terminal's standard voltage is shown in the table below. In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specific Condition". Use the illustration above as a reference for the ECM terminals. Waveform 1 Reference: TERMINAL SPECIFICATION Terminal 1LT+ - SLT- Tool setting 5V/DIV, 1ms/DIV Vehicle condition Engine idle speed Waveform 2 Reference: TERMINAL SPECIFICATION Terminal DSL - E1 Tool setting 10V/DIV, 100ms/DIV Vehicle condition Vehicle speed 65 km/h (40 mph), lockup (ON to OFF) Waveform 3 Reference: TERMINAL SPECIFICATION Terminal SL2+ - SL2- Tool setting 5V/DIV, 1ms/DIV Vehicle condition Engine Idle speed Waveform 4 Reference: TERMINAL SPECIFICATION Terminal SL1+-SL1- Tool setting 5V/DIV, 1ms/DIV Vehicle condition Engine idle speed Waveform 5 Reference: TERMINAL SPECIFICATION Terminal NC+ - NC- Tool setting 1V/DIV, 1 ms/DIV Vehicle condition Vehicle speed 30 km/h (19 mph): (3rd gear) Engine speed 1,400 RPM Waveform 6 Reference: TERMINAL SPECIFICATION Terminal NT+ - NT- Tool setting 5V/DIV, 0.5ms/DIV Vehicle condition Vehicle speed 20 km/h (12 mph) Waveform 7 Reference: TERMINAL SPECIFICATION Terminal SPD - E1 Tool setting 5V/DIV, 20ms/DIV Vehicle condition Vehicle speed 20 km/h (12 mph)