Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM100000001544A
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 09/2018]
Title: PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM: TERMINALS OF ECU; 2018 MY Camry HV [07/2017 - 09/2018]

TERMINALS OF ECU

CLEARANCE WARNING ECU ASSEMBLY

(a) Disconnect the R39 clearance warning ECU assembly connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

R39-1 (IG) - R39-30 (E)

B - BR

IG power source signal

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

R39-30 (E) - Body ground

BR - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the R39 clearance warning ECU assembly connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

R39-4 (BOF) - R39-30 (E)

R - BR

Power source for front sensor circuit

Power switch off

Below 1 V

  • Power switch on (IG)
  • Intelligent clearance sonar system on

11 to 14 V

R39-6 (E5) - R39-30 (E)

W - BR

Ground for front clearance sonar

Always

Below 1 Ω

R39-8 (SOF) - R39-30 (E)

L - BR

Front sensor communication signal (Front clearance sonar sensor)

  • Power switch on (IG)
  • Intelligent clearance sonar system on
  • Shift lever in any position other than P or R
  • Vehicle speed is less than approximately 10 km/h (6 mph)

Pulse generation

(Refer to waveform 1)

R39-14 (CBZ) - R39-13 (EF)

LG - L

Clearance warning buzzer signal

Buzzer sounding

Pulse generation

(Refer to waveform 2)

R39-22 (BOR) - R39-30 (E)

BE - BR

Power source for rear sensor circuit

Power switch off

Below 1 V

  • Power switch on (IG)
  • Intelligent clearance sonar system on

11 to 14 V

R39-23 (E1) - R39-30 (E)

GR - BR

Ground for rear clearance sonar

Always

Below 1 Ω

R39-24 (SOR) - R39-30 (E)

SB - BR

Rear sensor communication signal (Rear clearance sonar sensor)

  • Power switch on (IG)
  • Intelligent clearance sonar system on
  • Shift lever in R
  • Vehicle speed is less than approximately 10 km/h (6 mph)

Pulse generation

(Refer to waveform 3)

(e) Using an oscilloscope, check waveform 1.

(1) Waveform 1 (Reference)

Item

Content

Measurement terminal

R39-8 (SOF) - R39-30 (E)

Measurement setting

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

Condition

  • Power switch on (IG)
  • Intelligent clearance sonar system on
  • Shift lever in any position other than P or R
  • Vehicle speed is less than approximately 10 km/h (6 mph)

(f) Using an oscilloscope, check waveform 2.

(1) Waveform 2 (Reference)

Item

Content

Measurement terminal

R39-14 (CBZ) - R39-13 (EF)

Measurement setting

2 V/DIV., 500 μs./DIV.

Condition

Buzzer sounding

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

R39-24 (SOR) - R39-30 (E)

Measurement setting

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

Condition

  • Power switch on (IG)
  • Intelligent clearance sonar system on
  • Shift lever in R
  • Vehicle speed is less than approximately 10 km/h (6 mph)

HYBRID VEHICLE CONTROL ECU ASSEMBLY

for NICKEL METAL HYDRIDE BATTERY: Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): TERMINALS OF ECU

for LITHIUM-ION BATTERY: Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): TERMINALS OF ECU

COMBINATION METER ASSEMBLY

Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU