Diesel Data: Automotive Repair

Meter / Gauge System








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

TERMINALS OF ECU

1. COMBINATION METER













- *1: w/ Front Fog Light
- *2: Except for U.S.A.
- *3: for U.S.A.





(a) Waveform (Reference): Using an oscilloscope





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 INNER CIRCUIT
(a) Combination Meter Inner Circuit

















- *3: w/ Front Fog Light
- *5: w/ Tire Pressure Warning System