Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000024NI6
Model Year Start: 2023 Model: Camry HV Prod Date Range: [08/2022 -           ]
Title: NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU; 2023 - 2024 MY Camry HV [08/2022 -        ]

TERMINALS OF ECU

CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Disconnect the MB main body ECU (multiplex network body ECU) connector.

Click here 2021 - 2024 MY Camry HV [10/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

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

HINT:

Measure the values on the wire harness side with the connectors disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

MB-11 (GND1) - Body ground

-

Ground

Always

Below 1 Ω

MB-31 (BECU) - Body ground

-

Auxiliary battery power supply

Power switch off

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Power switch on (ACC)

11 to 14 V

Power switch off

Below 1 V

MB-32 (IG) - Body ground

-

IG power supply

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V

(c) Reconnect the MB main body ECU (multiplex network body ECU) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

3D-25 - Body ground

LA-BE - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

3B-17 - Body ground*

L - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

  • *: w/ Sliding Roof System

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR)

(a) Disconnect the O6 power window regulator motor assembly (driver door) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O6-2 (B) - Body ground

GR - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

O6-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the O6 power window regulator motor assembly (driver door) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O6-9 (LIN) - Body ground

G - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FRONT PASSENGER DOOR)

(a) Disconnect the N7 power window regulator motor assembly (front passenger door) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

N7-2 (B) - Body ground

GR - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

N7-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the N7 power window regulator motor assembly (front passenger door) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

N7-9 (LIN) - Body ground

P - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR RH DOOR)

(a) Disconnect the P6 power window regulator motor assembly (rear RH door) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P6-2 (B) - Body ground

B - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

P6-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the P6 power window regulator motor assembly (rear RH door) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P6-9 (LIN) - Body ground

P - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR LH DOOR)

(a) Disconnect the Q6 power window regulator motor assembly (rear LH door) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

Q6-2 (B) - Body ground

B - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

Q6-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the Q6 power window regulator motor assembly (rear LH door) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

Q6-9 (LIN) - Body ground

P - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the O2 multiplex network master switch assembly connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O2-11 (B) - Body ground

LA-R - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

O2-12 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the O2 multiplex network master switch assembly connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O2-17 (LIN1) - Body ground

P - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

O2-16 (LIN2) - Body ground

G - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (w/ Sliding Roof System)

(a) Disconnect the V2 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

V2-1 (B) - Body ground

B - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

V2-2 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the V2 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

V2-7 (MPX1) - Body ground

LA-P - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the K62 certification ECU (smart key ECU assembly) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K62-18 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

K62-4 (+B) - Body ground

B - Body ground

Auxiliary battery power supply

Power switch off

11 to 14 V

(c) Reconnect the K62 certification ECU (smart key ECU assembly) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K62-13 (LIN) - Body ground

GR - Body ground

LIN communication line

Power switch on (IG)

Pulse generation

CHECK ID CODE BOX (IMMOBILISER CODE ECU)

(a) Disconnect the K152 ID code box (immobiliser code ECU) connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K152-5 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

K152-1 (+B) - Body ground

LA-GR - Body ground

+B power supply

Power switch off

11 to 14 V

(c) Reconnect the K152 ID code box (immobiliser code ECU) connector.

(d) Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K152-2 (LIN1) - Body ground

GR - Body ground

LIN communication line

Power switch on (IG)

Pulse generation