Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM1000000021HPU
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 -           ]
Title: NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]

TERMINALS OF ECU

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

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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(b) Connect the instrument panel junction block assembly connectors.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A-32 (IG) - Body ground

None - Body ground

Ignition power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

A-31 (BECU) - Body ground

None - Body ground

Auxiliary battery power supply

Ignition switch off

11 to 14 V

A-30 (ACC) - Body ground

None - Body ground

ACC power supply

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

A-11 (GND1) - Body ground

None - Body ground

Ground

Always

Below 1 Ω

(d) Install the main body ECU (multiplex network body ECU).

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

4H-25 - Body ground

W - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the J2 multiplex network master switch assembly connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J2-11 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

J2-12 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J2-17 (LIN1) - Body ground

GR - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the J6 front power window regulator motor assembly LH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J6-2 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

J6-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J6-9 (LIN) - Body ground

BE - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the I7 front power window regulator motor assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I7-2 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

I7-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I7-9 (LIN) - Body ground

BE - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the L5 rear power window regulator motor assembly LH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

L5-2 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

L5-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

L5-9 (LIN) - Body ground

BE - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the K5 rear power window regulator motor assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K5-2 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

K5-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K5-9 (LIN) - Body ground

BE - Body ground

LIN communication line

Ignition switch ON

Pulse generation

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

(a) Disconnect the P4 sliding roof drive gear sub-assembly connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P4-1 (B) - Body ground

B - Body ground

Battery power supply

Ignition switch off

11 to 14 V

P4-2 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P4-7 (MPX1) - Body ground

P - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK SLIDING ROOF DRIVE GEAR ASSEMBLY (w/ Panoramic Moon Roof System)

(a) Disconnect the P4 sliding roof drive gear assembly connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P4-1 (B) - Body ground

W - Body ground

Battery power supply

Ignition switch off

11 to 14 V

P4-2 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Measure the pulse according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

P4-7 (MPX1) - Body ground

P - Body ground

LIN communication line

Ignition switch ON

Pulse generation

*A

for Gasoline Model

*B

for HV Model

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)

(a) Disconnect the G54 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

G54-4 (+B) - Body ground

P - Body ground

Battery power supply

Ignition switch off

11 to 14 V

G54-18 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the G54 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

G54-13 (LIN) - Body ground

LG - Body ground

LIN communication line

Ignition switch ON

Pulse generation

CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ Smart Key System)

(a) Disconnect the G57 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

*1: for Gasoline Model

*2: for HV Model

G57-5 (GND) - Body ground

LA - Body ground

Ground

Always

Below 1 Ω

G57-1 (+B) - Body ground

LA-B - Body ground*1

LA-GR - Body ground*2

+B power supply

Ignition switch off

11 to 14 V

(c) Reconnect the G57 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

G57-2 (LIN1) - Body ground

GR - Body ground

LIN communication line

Ignition switch ON

Pulse generation