Diesel Data: Automotive Repair

Meter / Gauge System





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

1. COMBINATION METER













* *1: w/ Front Fog Light

* *2: except for U.S.A.

* *3: for U.S.A.

* *4: w/ Tire Pressure Warning System

(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

















* *1: for 4WD

* *2: except for U.S.A.

* *3: w/ Front Fog Light

* *4: for U.S.A.

* *5: w/ Tire Pressure Warning System

* *6: for 2WD