Operation CHARM: Car repair manuals for everyone.

Meter / Gauge System





METER: 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: for Manual Transmission

*2: w/ Cruise Control

*3: for Hydraulic Booster Type

*4: for U.S.A.

*5: w/ Active Traction Control

*6: for A750E and A750F Automatic Transmission

*7: for Canada

*8: for Automatic Transmission

*9: for A340E Automatic Transmission

*10: for Vacuum Booster Type

*11: w/ Downhill Assist Control

*12: w/ Rear Differential Lock

*13: w/ 4WD

(b) Waveform 1: Using an oscilloscope









HINT
As vehicle speed increases, the cycle of the signal waveform narrows.

(c) Waveform 2: Using an oscilloscope









(d) Waveform 3: Using an oscilloscope









HINT
Interval A changes in accordance with the engine coolant temperature.





2. COMBINATION METER INNER CIRCUIT

















Connectors









*1: for Manual Transmission

*2: for Automatic Transmission

*3: w/ Cruise Control

*4: for Hydraulic Booster Type

*5: for U.S.A.

*6: w/ Active Traction Control

*7: for A750E and A750F Automatic Transmission

*8: for Canada

*9: for Vacuum Booster Type

*10: w/ Downhill Assist Control

*11: w/ Rear Differential Lock

*12: for 4WD

*13: for A340E Automatic Transmission