Meter / Gauge System

METER: METER / GAUGE SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. COMBINATION METER ASSEMBLY

























*1: w/ Air Suspension System
*2: for 4WD
*3: for 4WD, 1GR-FE
*4: for Canada
*5: w/ Rear Differential Lock





(a) Waveform 1 (Reference): Using an oscilloscope:





HINT: As vehicle speed increases, the cycle of the signal waveform narrows.





(b) Waveform 2 (Reference): Using an oscilloscope:









(c) Waveform 3 (Reference): Using an oscilloscope:





HINT: As the engine coolant temperature rises, the period "A" shown in the illustration becomes longer.









(d) Waveform 4 (Reference): Using an oscilloscope:









(e) Waveform 5 (Reference): Using an oscilloscope:





HINT: Duty ratio changes as the illumination becomes darker (the period "A" shown in the illustration becomes longer).

2. COMBINATION METER INNER CIRCUIT





















*1: w/ Air Suspension System
*2: for 4WD
*3: for 4WD, 1GR-FE
*4: for Canada
*5: w/ Rear Differential Lock