Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001G5C6
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 -           ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (for HV Model with Memory): TERMINALS OF ECU; 2019 - 2025 MY RAV4 HV [11/2018 -        ]

TERMINALS OF ECU

CHECK POSITION CONTROL ECU ASSEMBLY

(a) Disconnect the T7 and T8 position control ECU assembly connectors.

(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

T7-2 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

T7-3 (+B) - Body ground

W - Body ground

Battery power supply

Power switch off

11 to 14 V

T8-1 (IG) - Body ground

P - Body ground

Ignition power supply

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

T8-15 (SYSB) - Body ground

G - Body ground

System power source

Power switch off

11 to 14 V

(c) Reconnect the T7 and T8 position control ECU assembly connectors.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

T7-1 (SLD+) - Body ground

L - Body ground

Slide motor signal (forward)

Slide switch off

Below 1 V

Slide switch on (Forward)

11 to 14 V

T7-5 (SLD-) - Body ground

GR - Body ground

Slide motor signal (rearward)

Slide switch off

Below 1 V

Slide switch on (Rearward)

11 to 14 V

T7-6 (LFT+) - Body ground

V - Body ground

Rear lifter motor signal (upward)

Rear lifter switch off

Below 1 V

Rear lifter switch on (Upward)

11 to 14 V

T7-7 (FRV+) - Body ground

B - Body ground

Front vertical motor signal (upward)

Front vertical switch off

Below 1 V

Front vertical switch on (Upward)

11 to 14 V

T7-9 (L+) - Body ground

V - Body ground

Lumbar support adjuster motor signal (forward)

Lumbar support adjuster switch off

Below 1 V

Lumbar support adjuster switch on (Forward)

11 to 14 V

T7-10 (RCL+) - Body ground

P - Body ground

Reclining motor signal (forward)

Reclining switch off

Below 1 V

Reclining switch on (Forward)

11 to 14 V

T6-3 (L-) - Body ground

L - Body ground

Lumbar support adjuster motor signal (rearward)

Lumbar support adjuster switch off

Below 1 V

Lumbar support adjuster switch on (Rearward)

11 to 14 V

T6-4 (FRV-) - Body ground

R - Body ground

Front vertical motor signal (downward)

Front vertical switch off

Below 1 V

Front vertical switch on (Downward)

11 to 14 V

T6-5 (LFT-) - Body ground

G - Body ground

Lifter motor signal (downward)

Rear lifter switch off

Below 1 V

Rear lifter switch on (Downward)

11 to 14 V

T6-6 (RCL-) - Body ground

LG - Body ground

Reclining motor signal (rearward)

Reclining switch off

Below 1 V

Reclining switch on (Rearward)

11 to 14 V

T8-4 (LFLF) - Body ground

W - Body ground

Lumbar support adjuster switch (forward) signal

Lumbar support adjuster switch off

11 to 14 V

Lumbar support adjuster switch on (Forward)

Below 1 V

T8-6 (FRVU) - Body ground

L - Body ground

Front vertical switch (upward) signal

Front vertical switch off

11 to 14 V

Front vertical switch on (Upward)

Below 1 V

T8-7 (LFTU) - Body ground

BR - Body ground

Rear lifter switch (upward) signal

Rear lifter switch off

11 to 14 V

Rear lifter switch on (Upward)

Below 1 V

T8-8 (RCLF) - Body ground

R - Body ground

Reclining switch (forward) signal

Reclining switch off

11 to 14 V

Reclining switch on (Forward)

Below 1 V

T8-9 (SLDF) - Body ground

B - Body ground

Slide switch (forward) signal

Slide switch off

11 to 14 V

Slide switch on (Forward)

Below 1 V

T8-12 (SGND) - Body ground

BR - Body ground

Sensor ground

Always

Below 1 Ω

T8-18 (LFLR) - Body ground

L - Body ground

Lumbar support adjuster switch (rearward) signal

Lumbar support adjuster switch off

11 to 14 V

Lumbar support adjuster switch on (Rearward)

Below 1 Ω

T8-20 (FRVD) - Body ground

V - Body ground

Front vertical switch (downward) signal

Front vertical switch off

11 to 14 V

Front vertical switch on (Downward)

Below 1 V

T8-21 (LFTD) - Body ground

LG - Body ground

Rear lifter switch (downward) signal

Rear lifter switch off

11 to 14 V

Rear lifter switch on (Downward)

Below 1 V

T8-22 (RCLR) - Body ground

G - Body ground

Reclining switch (rearward) signal

Reclining switch off

11 to 14 V

Reclining switch on (Rearward)

Below 1 V

T8-23 (SLDR) - Body ground

GR - Body ground

Slide switch (rearward) signal

Slide switch off

11 to 14 V

Slide switch on (Rearward)

Below 1 V

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

T8-10 (SSFV) - Body ground

L - Body ground

Front vertical position signal

Front vertical function operating

Pulse generation

T8-11 (SSRR) - Body ground

V - Body ground

Reclining position signal

Reclining function operating

Pulse generation

T8-25 (SSRL) - Body ground

B - Body ground

Rear lifter position signal

Rear lifter function operating

Pulse generation

T8-26 (SSRS) - Body ground

G - Body ground

Slide position signal

Slide function operating

Pulse generation

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

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

(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

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V

A-31 (BECU) - Body ground

None - Body ground

Battery power supply

Power switch off

11 to 14 V

A-30 (ACC) - Body ground

None - Body ground

ACC power supply

Power switch on (ACC)

11 to 14 V

Power 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) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G44-1 (FLCY) - Body ground

R - Body ground

Front door courtesy light switch assembly LH input

Front door (driver door) open

Below 1 V

Front door (driver door) closed

4.7 to 5.3 V

G43-7 (MM) - Body ground

L - Body ground

SET switch signal for seat memory switch

SET switch on

Below 1 V

SET switch off

11 to 14 V

G43-9 (M2) - Body ground

R - Body ground

M2 switch signal for seat memory switch

M2 switch on

Below 1 V

M2 switch off

11 to 14 V

G43-10 (M1) - Body ground

GR - Body ground

M1 switch signal for seat memory switch

M1 switch on

Below 1 V

M1 switch off

11 to 14 V