Terminals Of Ecu

COMBINATION METER ASSEMBLY

Fig 1: Identifying Combination Meter Assembly Connector Terminals

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Fig 2: Combination Meter Connector Terminals Chart (1 Of 3)

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Fig 3: Combination Meter Connector Terminals Chart (2 Of 3)

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Fig 4: Combination Meter Connector Terminals Chart (3 Of 3)

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Waveform 1 (Reference): Using oscilloscope:

WAVEFORM 1 REFERENCE

Item	Condition
Tool setting	2V/DIV., 1ms/DIV.
Vehicle condition	Turn the ignition switch to the ON position

Fig 5: Identifying Waveform 1

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HINT:

Duty ratio changes as illumination becomes darker ("A" becomes longer).

Waveform 2 (Reference): Using oscilloscope:

WAVEFORM 2 REFERENCE

Item	Condition
Tool setting	5 V/DIV., 20 ms/DIV.
Vehicle condition	Driving at approx. 20 km/h (12 mph)

Fig 6: Identifying Waveform 2

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Waveform 3 (Reference): Using oscilloscope:

WAVEFORM 3 REFERENCE

Item	Condition
Tool setting	5 V/DIV., 10 ms/DIV.
Vehicle condition	Engine idle speed

Fig 7: Identifying Waveform 3

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INTEGRATION CONTROL & PANEL ASSEMBLY (without NAVIGATION SYSTEM)

Fig 8: Identifying C4 Connector Terminals

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Fig 9: Control & Panel Connector Terminals Chart (Without Navigation System)

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Waveform 1 (Reference): Using oscilloscope:

WAVEFORM 1 REFERENCE

Item	Condition
Tool setting	2 V/DIV., 1 ms/DIV.
Vehicle condition	Turn the ignition switch to the ON position

Fig 10: Identifying Waveform 1

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HINT:

Duty ratio changes as illumination becomes darker ("A" becomes longer).

COMBINATION METER INNER CIRCUIT

Fig 11: Combination Meter Inner Circuit Diagram (1 Of 3)

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Fig 12: Combination Meter Inner Circuit Diagram (2 Of 3)

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Fig 13: Combination Meter Inner Circuit Diagram (3 Of 3)

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TERMINAL REFERENCE

Terminal No.

Wire harness side

Ground (POWER GND)

PANEL Fuse (ILL-)

Suspension Control ECU (AIR SUS LOADING MODE) (⁽¹⁾)

ECM (CHECK ENGINE)

Multiplex Communication Line (MPX+)

Each part that uses speed signal (SPEED SIGNAL (4P))

ECM (TACH)

GAUGE 2 Fuse (IG2)

Suspension Control ECU (AIR SUS OFF) (⁽¹⁾)

Suspension Control ECU (AIR SUS LO) (⁽¹⁾)

Suspension Control ECU (AIR SUS N) (⁽¹⁾)

Suspension Control ECU (AIR SUS HI) (⁽¹⁾)

Turn Signal Flasher Relay (TURN R)

Turn Signal Flasher Relay (TURN L)

ECU-B Fuse (ECU +B)

DOME Fuse (DOME +B)

Ground (SIGNAL GND)

Ground (FE)

Multiplex Communication Line (MPX-)

Alternator L Terminal

Brake Fluid Level Warning Switch (BRAKE LEVEL)

Headlight Beam Level Control ECU (H-LP LEVEL)

Engine Oil Pressure Switch (OIL PRESSURE SW)

AFS ECU (AFS OFF) (⁽²⁾)

Light Control Rheostat (RE)

Light Control Rheostat (RV)

Light Control Rheostat (RL)

Light Control Rheostat (TCAN SW)

Light Control Rheostat (ODO/TRIP SW)

Skid Control ECU (SPEED SIGNAL)

Fuel Sender Gauge Assembly (FUEL SENDER)

Navigation ECU (P SEAT BELT)

Luggage Room J/B ECU (RR LIGHT)

Washer Level Warning Switch (WASHER LEVEL)

⁽¹⁾	with Air Suspension

⁽²⁾

with AFS