Pinout Values and Diagnostic Parameters

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

1. COMBINATION METER ASSEMBLY





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









* *1: w/ Automatic Type Headlight Beam Level Control

* *2: w/ Seat Heater

* *3: w/ Tire Pressure Warning System

(b) Waveform 1 (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 ASSEMBLY INNER CIRCUIT

















* *1: w/ Automatic Type Headlight Beam Level Control

* *6: w/ Tire Pressure Warning System

* *8: w/ Seat Heater