Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Meter / Gauge System





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

1. COMBINATION METER





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









* *1: for TMC Made

* *2: except TMC Made

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

* *4: w/ Front Fog Light

* *5: for U.S.A.

(b) Waveform (Reference): Using oscilloscope:









HINT
* Vehicle speed signal that has been received and transmitted via the direct line is used for another system, and is not used for combination meter operation.
* 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.
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: except for U.S.A.

* *2: w/ Front Fog Light

3. TELLTALE LIGHT ASSEMBLY (w/ Clock)





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