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Terminals Of Ecu

  1. CHECK A/C AMPLIFIER ASSEMBLY 
    Fig 1: Identifying Terminals Of ECU
    G04050784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage and resistance of each terminal of the connectors.

Voltage 

A/C AMPLIFIER ASSEMBLY (VOLTAGE)

Symbols (Terminal No) Wire Color Terminal Description Condition Specified Condition
DFG (J58-3) - GND (J58-20) B - W-B Rear Defogger Signal Engine switch on (IG) Rear defogger switch OFF 10 to 14 V

Resistance 

A/C AMPLIFIER ASSEMBLY (RESISTANCE)

Symbols (Terminal No) Wire Color Terminal Description Condition Specified Condition
GND (J58-20) - Body ground W-B - Body ground Ground Always Below 1 ohms