Terminals Of Ecu

A/C AMPLIFIER ASSEMBLY

Fig 1: Identifying A/C Amplifier Assembly Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard voltage

TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
SG-5 (E2-6) - Body ground	R - Body ground	GND	Engine switch on (IG)	4 to 6 V
S5-2 (E2-8) - Body ground	Y - Body ground	Power supply	Always	10 to 14 V
SVDS (E2-15) - Body ground	L - Body ground	Input climate control signal (Driver side)	Always	10 to 14 V
SVPS (E2-16) - Body ground	G - Body ground	Input climate control signal (Front passenger side)	Always	10 to 14 V

Standard

TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
SVDB (E2-9) - Body ground	LG - Body ground	Output climate control signal (Driver side)	Engine switch on (IG)	Pulse generation
SVPB (E2-10) - Body ground	O - Body ground	Output climate control signal (Front passenger side)	Engine switch on (IG)	Pulse generation

Waveform (Reference): Using an oscilloscope:

WAVEFORM REFERENCE

Item	Condition
Tool setting	2 V/DIV., 500 μsec/DIV.
Vehicle condition	Engine switch on (IG)

Fig 2: Identifying Waveform