Meter / Gauge System

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU

1. CHECK COMBINATION METER ASSEMBLY

(a) Measure the voltage and resistance according to the value(s) in the table below.













* *1: w/ Washer Level Warning Light

* *2: w/ Tire Pressure Warning System

* *3: w/o Daytime Running Light

* *4: w/ Daytime Running Light

(b) Using an oscilloscope, check the signal waveform of the meter.





Waveform 1 (Reference)





HINT
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by A in the illustration narrows.

2. COMBINATION METER ASSEMBLY INNER CIRCUIT













Table of Terminal Connection





* *1: w/ Washer Level Warning Light

* *2: w/ Tire Pressure Warning System

* *3: w/ Daytime Running Light

* *4: w/o Daytime Running Light