Toyota CH-R Service Manual: Terminals Of Ecu

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio Receiver Type) / Terminals Of Ecu

TERMINALS OF ECU

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
F47-4 (MACC) - F48-7 (GND1)	B - LA	Microphone power supply	Ignition switch off	Below 1 V
F47-4 (MACC) - F48-7 (GND1)	B - LA	Microphone power supply	Ignition switch ACC	4 to 6 V
F47-5 (MIN+) - F48-7 (GND1)	W - LA	Microphone voice signal	"Bluetooth" hands-free voice signal received	A waveform synchronized with sound signals is output
F47-6 (SNS2) - F48-7 (GND1)	V - LA	Microphone connection detection signal	Always	Below 1 V
F47-17 (SPD) - F48-7 (GND1)	V - LA	Vehicle speed signal	Ignition switch ON Wheel being rotated	Pulse generation
F47-18 (SGND) - Body ground	Shield - Body ground	Shield ground	Always	Below 1 V
F47-19 (MIN-) - F48-7 (GND1)	R - LA	Microphone voice signal	"Bluetooth" hands-free voice signal received	A waveform synchronized with sound signals is output
F47-21 (SW1) - F47-23 (SWG)	GR - W-B	Steering pad switch signal	No switch pushed	2.97 to 3.56 V
			Seek+ switch pushed	0.27 to 0.35 V
			Seek- switch pushed	0.86 to 1.03 V
			Volume+ switch pushed	1.51 to 1.79 V
			Volume- switch pushed	2.22 to 2.66 V
F47-22 (SW2) - F47-23 (SWG)	G - W-B	Steering pad switch signal	No switch pushed	2.97 to 3.56 V
			MODE switch pushed	0.27 to 0.35 V
			On hook switch pushed	0.86 to 1.03 V
			Off hook switch pushed	1.51 to 1.79 V
F47-23 (SWG) - Body ground	W-B - Body ground	Steering pad switch signal	Always	Below 1 V
F48-1 (FR+) - F48-7 (GND1)	P - LA	Sound signal (Front Right)	Audio system playing	A waveform synchronized with sound signals is output
F48-2 (FL+) - F48-7 (GND1)	W - LA	Sound signal (Front Left)	Audio system playing	A waveform synchronized with sound signals is output
F48-3 (ACC1) - F48-7 (GND1)	GR - LA	Power source (ACC)	Ignition switch off	Below 1 V
F48-3 (ACC1) - F48-7 (GND1)	GR - LA	Power source (ACC)	Ignition switch ACC	11 to 14 V
F48-4 (+B1) - F48-7 (GND1)	LA-SB - LA	Power source (+B)	Always	11 to 14 V
F48-5 (FR-) - F48-7 (GND1)	BR - LA	Sound signal (Front Right)	Audio system playing	A waveform synchronized with sound signals is output
F48-6 (FL-) - F48-7 (GND1)	B - LA	Sound signal (Front Left)	Audio system playing	A waveform synchronized with sound signals is output
F48-7 (GND1) - Body ground	LA - Body ground	Ground	Always	Below 1 V
F48-10 (ILL+) - Body ground	G - Body ground	Illumination signal	Light control switch off	Below 1 V
F48-10 (ILL+) - Body ground	G - Body ground	Illumination signal	Light control switch in tail or head position	11 to 14 V
F49-1 (RR+) - F48-7 (GND1)	R - LA	Sound signal (Rear Right)	Audio system playing	A waveform synchronized with sound signals is output
F49-2 (RL+) - F48-7 (GND1)	B - LA	Sound signal (Rear Left)	Audio system playing	A waveform synchronized with sound signals is output
F49-3 (RR-) - F48-7 (GND1)	W - LA	Sound signal (Rear Right)	Audio system playing	A waveform synchronized with sound signals is output
F49-6 (RL-) - F48-7 (GND1)	Y - LA	Sound signal (Rear Left)	Audio system playing	A waveform synchronized with sound signals is output
RA-5 (ANT+) - F48-7 (GND1)	- - LA	Power source of antenna	Ignition switch ACC Radio switch on and AM or FM selected	11 to 14 V

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Noise Occurs

PROCEDURE 1. NOISE CONDITION (a) Check from which direction the noise comes (front left or right, rear left or right). OK: The location of the noise source can b ...

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