TERMINALS OF ECU CHECK ECM (for 1UR-FE) ![]() HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
CHECK ECM (for 3UR-FE) ![]() HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: 4WD Control Switch Circuit
WIRING DIAGRAM PROCEDURE 1. CONFIRM PROBLEM SYMPTOM (a) Confirm the problem symptoms. Result Result Proceed to The 4HI and 4LO indicator lights are not illuminated A The 4HI indicator light is illuminated and the 4LO indicator light is not illuminated B The 4HI indicator light is not illuminated and ...