DYNAMIC RADAR CRUISE CONTROL SYSTEM

CHECK ECM

Tech Tips

The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbols)	Wiring Color	Terminal Description	Condition	Specified Condition
C62-34 (D) - C62-53 (E1)	Y - W-B	D shift position signal	Ignition switch to ON, shift lever in D	11 to 14 V
C62-34 (D) - C62-53 (E1)	Y - W-B	D shift position signal	Ignition switch to ON, shift lever not in D	Below 1 V
A38-59 (S) - C62-53 (E1)	W - W-B	M shift position signal	Ignition switch to ON, shift lever in M	11 to 14 V
A38-59 (S) - C62-53 (E1)	W - W-B	M shift position signal	Ignition switch to ON, shift lever not in M	Below 1 V
A38-9 (STP) - C62-53 (E1)	R - W-B	Stop light switch assembly signal	Brake pedal depressed	11 to 14 V
A38-9 (STP) - C62-53 (E1)	R - W-B	Stop light switch assembly signal	Brake pedal released	Below 1 V
A38-43 (SFTD) - C62-53 (E1)	SB - W-B	Down-shift position switch signal	Ignition switch to ON, shift lever in M	11 to 14 V
A38-43 (SFTD) - C62-53 (E1)	SB - W-B	Down-shift position switch signal	Ignition switch to ON, shift lever in "-"	Below 1 V
A38-42 (SFTU) - C62-53 (E1)	B - W-B	Up-shift position switch signal	Ignition switch to ON, shift lever in M	11 to 14 V
A38-42 (SFTU) - C62-53 (E1)	B - W-B	Up-shift position switch signal	Ignition switch to ON, shift lever in "+"	Below 1 V
A38-55 (CCS) - C62-53 (E1)	SB - W-B	Cruise control main switch circuit	Cruise control main switch (ON/OFF button) not pushed	1 MΩ or higher
A38-55 (CCS) - C62-53 (E1)	SB - W-B	Cruise control main switch circuit	Cruise control main switch (ON/OFF button) pushed	Below 2.5 Ω
A38-55 (CCS) - C62-53 (E1)	SB - W-B	Cruise control main switch circuit	+RES switch ON	235 to 245 Ω
A38-55 (CCS) - C62-53 (E1)	SB - W-B	Cruise control main switch circuit	-SET switch ON	617 to 643 Ω
A38-55 (CCS) - C62-53 (E1)	SB - W-B	Cruise control main switch circuit	CANCEL switch ON	1509 to 1571 Ω
A38-10 (ST1-) - C62-53 (E1)	G - W-B	Stop light switch assembly signal	Ignition switch to ON, brake pedal depressed	Below 1 V
A38-10 (ST1-) - C62-53 (E1)	G - W-B	Stop light switch assembly signal	Ignition switch to ON, brake pedal released	11 to 14 V

CHECK FORWARD RECOGNITION CAMERA

Note

Do not apply excessive force to the connector. If a force of 10 kg or more is applied, the connector may be broken.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
R5-8 (BZ) - R5-10 (GND)	P - W-B1 B - W-B2	Pre-collision city buzzer output	Ignition switch to ON, buzzer not sounding	11 to 14 V
R5-8 (BZ) - R5-10 (GND)	P - W-B1 B - W-B2	Pre-collision city buzzer output	Ignition switch to ON, buzzer sounding	Below 1 V
R5-7 (IGB) - R5-10 (GND)	B - W-B	Power source	Ignition switch to ON	11 to 14 V
R5-7 (IGB) - R5-10 (GND)	B - W-B	Power source	Ignition switch off	Below 1 V
R5-5 (CA1P) - R5-10 (GND)	R - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 1)
R5-11 (CA1N) - R5-10 (GND)	GR - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 2)
R5-6 (CANH) - R5-10 (GND)	G - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 1)
R5-12 (CANL) - R5-10 (GND)	R - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 2)
R5-3 (LKSW) - R5-10 (GND)	SB - W-B1 R - W-B2	Steering pad switch assembly signal (distance control signal)	Ignition switch to ON, steering pad switch assembly (distance control switch) off	4.75 to 5.25 V
R5-3 (LKSW) - R5-10 (GND)	SB - W-B1 R - W-B2		Ignition switch to ON, steering pad switch assembly (distance control switch) on	Below 1 V
R5-10 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

*1: for TMC Made
*2: for TMMT Made

Waveform 1

CAN communication signal

Item	Content
Tester Connection	Between R5-5 (CA1P) and R5-10 (GND) Between R5-6 (CANH) and R5-10 (GND)
Tool Setting	1 V/DIV., 10 μsec./DIV.
Condition	Ignition switch to ON

Tech Tips

The waveform varies depending on the CAN communication signal.

Waveform 2

CAN communication signal

Item	Content
Tester Connection	Between R5-11 (CA1N) and R5-10 (GND) Between R5-12 (CANL) and R5-10 (GND)
Tool Setting	1 V/DIV., 10 μsec./DIV.
Condition	Ignition switch to ON

Tech Tips

The waveform varies depending on the CAN communication signal.

CHECK MILLIMETER WAVE RADAR SENSOR

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A2-1 (SGND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A2-2 (CA2L) - A2-1 (SGND)	GR - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 2)
A2-3 (CA2H) - A2-1 (SGND)	G - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 1)
A2-5 (CA1P) - A2-1 (SGND)	G - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 1)
A2-6 (CA1N) - A2-1 (SGND)	R - W-B	CAN communication signal	Ignition switch to ON	Pulse generation (See waveform 2)
A2-8 (IGB) - A2-1 (SGND)	B - W-B	Power source	Ignition switch to ON	11 to 14 V

Waveform 1

CAN communication signal

Item	Content
Tester Connection	Between A2-3 (CA2H) and A2-1 (SGND) Between A2-5 (CA1P) and A2-1 (SGND)
Tool Setting	1 V/DIV., 10 μsec./DIV.
Condition	Ignition switch to ON

Tech Tips

The waveform varies depending on the CAN communication signal.

Waveform 2

CAN communication signal

Item	Content
Tester Connection	Between A2-2 (CA2L) and A2-1 (SGND) Between A2-6 (CA1N) and A2-1 (SGND)
Tool Setting	1 V/DIV., 10 μsec./DIV.
Condition	Ignition switch to ON

Tech Tips

The waveform varies depending on the CAN communication signal.

DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU