Terminals Of Ecu

CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

Fig 1: Identifying Air Conditioning Amplifier Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage and resistance of each terminal of the connectors.

AIR CONDITIONING AMPLIFIER

Symbols (Terminal No)	Wire Color	Terminal Description	Condition	Specified Condition
A8-8 (FDEF) - A8-6 (GND)	B - W-B	Front Deicer Signal	Engine switch on (IG) Front deicer switch ON	Below 1 V
A8-8 (FDEF) - A8-6 (GND)	B - W-B	Front Deicer Signal	Engine switch on (IG) Front deicer switch OFF	10 to 14 V
A8-19(DFG) - A8-6(GND)	G - W-B	Rear Defogger Signal	Engine switch on (IG) Rear defogger switch OFF	10 to 14 V
A8-19(DFG) - A8-6(GND)	G - W-B	Rear Defogger Signal	Engine switch on (IG) Rear defogger switch ON	Below 1 V
E1 (E7-7) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω
E02 (E6-1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
E01 (E6-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
EC (A6-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω