Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001L80Q
Model Year Start: 2020 Model: RAV4 Prod Date Range: [10/2019 - 10/2023]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model with Parking Support Brake System): TERMINALS OF ECU; 2020 - 2023 MY RAV4 [10/2019 - 10/2023]

TERMINALS OF ECU

CLEARANCE WARNING ECU ASSEMBLY

*A

for TMMC Made

*B

for TMC Made

(a) Disconnect the G25*1 or H4*2 clearance warning ECU assembly connector.

  • *1: for TMMC Made
  • *2: for TMC Made

(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.

for TMMC Made:

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition
*1: w/o Stop and Start System

*2: w/ Stop and Start System

G25-1 (IG) - G25-28 (E)

B - W-B

IG power source signal

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V*1

10.5 to 16 V*2

G25-28 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

for TMC Made:

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition
*1: w/o Stop and Start System

*2: w/ Stop and Start System

H4-1 (IG) - H4-28 (E)

B - W-B

IG power source signal

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V*1

10.5 to 16 V*2

H4-28 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the G25*1 or H4*2 clearance warning ECU assembly connector.

  • *1: for TMMC Made
  • *2: for TMC Made

(d) Measure the voltage, resistance and check for pulses according to the value(s) in the table below.

for TMMC Made:

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G25-2 (BOF) - G25-28 (E)

R - W-B

Power source for front sensor circuit

Engine switch off

Below 1 V
  • Engine switch on (IG)
  • Intuitive parking assist system on

11 to 14 V

G25-3 (SOF) - G25-28 (E)

L - W-B

Front sensor communication signal (Front clearance sonar sensor)
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in any position other than P
  • Vehicle speed is less than approximately 10 km/h (6 mph)

Pulse generation

(Refer to waveform 1)

G25-4 (E5) - G25-28 (E)

W - W-B

Ground for front clearance sonar

Always

Below 1 Ω

G25-9 (CBZ) - G25-8 (EF)

LG - L

No. 1 clearance warning buzzer signal

Buzzer sounding

Pulse generation

(Refer to waveform 2)

G25-19 (BOR) - G25-28 (E)

LG - W-B

Power source for rear sensor circuit

Engine switch off

Below 1 V
  • Engine switch on (IG)
  • Intuitive parking assist system on

11 to 14 V

G25-20 (SOR) - G25-28 (E)

SB - W-B

Rear sensor communication signal (Rear clearance sonar sensor)
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in R

Pulse generation

(Refer to waveform 3)

G25-21 (E1) - G25-28 (E)

GR - W-B

Ground for rear clearance sonar

Always

Below 1 Ω

G25-25 (BBZ) - G25-26 (ER)

LG - L

No. 2 clearance warning buzzer signal

Buzzer sounding

Pulse generation

(Refer to waveform 2)

for TMC Made:

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

H4-2 (BOF) - H4-28 (E)

R - W-B

Power source for front sensor circuit

Engine switch off

Below 1 V
  • Engine switch on (IG)
  • Intuitive parking assist system on

11 to 14 V

H4-3 (SOF) - H4-28 (E)

L - W-B

Front sensor communication signal (Front clearance sonar sensor)
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in any position other than P
  • Vehicle speed is less than approximately 10 km/h (6 mph)

Pulse generation

(Refer to waveform 1)

H4-4 (E5) - H4-28 (E)

W - W-B

Ground for front clearance sonar

Always

Below 1 Ω

H4-9 (CBZ) - H4-8 (EF)

LG - L

No. 1 clearance warning buzzer signal

Buzzer sounding

Pulse generation

(Refer to waveform 2)

H4-19 (BOR) - H4-28 (E)

LG - W-B

Power source for rear sensor circuit

Engine switch off

Below 1 V
  • Engine switch on (IG)
  • Intuitive parking assist system on

11 to 14 V

H4-20 (SOR) - H4-28 (E)

SB - W-B

Rear sensor communication signal (Rear clearance sonar sensor)
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in R

Pulse generation

(Refer to waveform 3)

H4-21 (E1) - H4-28 (E)

GR - W-B

Ground for rear clearance sonar

Always

Below 1 Ω

H4-25 (BBZ) - H4-26 (ER)

LG - L

No. 2 clearance warning buzzer signal

Buzzer sounding

Pulse generation

(Refer to waveform 2)

(e) Using an oscilloscope, check waveform 1.

(1) Waveform 1 (Reference)

Item

Content

Measurement terminal

G25-3 (SOF) - G25-28 (E)*1

H4-3 (SOF) - H4-28 (E)*2

Measurement setting

5 V/DIV., 1 ms./DIV.

Condition
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in any position other than P
  • Vehicle speed is less than approximately 10 km/h (6 mph)
  • *1: for TMMC Made
  • *2: for TMC Made

(f) Using an oscilloscope, check waveform 2.

(1) Waveform 2 (Reference)

Item

Content

Measurement terminal

G25-9 (CBZ) - G25-8 (EF)*1

H4-9 (CBZ) - H4-8 (EF)*2

G25-25 (BBZ) - G25-26 (ER)*1

H4-25 (BBZ) - H4-26 (ER)*2

Measurement setting

2 V/DIV., 500 μs./DIV.

Condition

Buzzer sounding
  • *1: for TMMC Made
  • *2: for TMC Made

HINT:

The amplitude of the waveform changes according to the set volume.

(g) Using an oscilloscope, check waveform 3.

(1) Waveform 3 (Reference)

Item

Content

Measurement terminal

G25-20 (SOR) - G25-28 (E)*1

H4-20 (SOR) - H4-28 (E)*2

Measurement setting

5 V/DIV., 1 ms./DIV.

Condition
  • Engine switch on (IG)
  • Intuitive parking assist system on
  • Shift lever in R
  • *1: for TMMC Made
  • *2: for TMC Made