| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001QOQV |
| Model Year Start: 2021 | Model: RAV4 | Prod Date Range: [08/2020 - 10/2022] |
| Title: SEAT BELT: SEAT BELT WARNING SYSTEM: TERMINALS OF ECU; 2021 - 2022 MY RAV4 RAV4 HV [08/2020 - 10/2022] | ||
TERMINALS OF ECU
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (w/ Rear Seat Belt Warning System)
|
*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.
Click here
![2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL](/t3Portal/stylegraphics/info.gif)
(b) Reconnect the instrument panel junction block assembly connectors.
(c) Measure the resistance and voltage 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) Measure the voltage and pulse according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
4H-24 (LCTY) - Body ground |
G - Body ground |
Rear door courtesy light switch assembly LH input |
Rear door LH open |
Below 1 V |
|
Rear door LH closed |
4.7 to 5.3 V |
|||
|
4A-31 (RCTY) - Body ground |
LA-V - Body ground |
Rear door courtesy light switch assembly RH input |
Rear door RH open |
Below 1 V |
|
Rear door RH closed |
4.7 to 5.3 V |
CHECK COMBINATION METER ASSEMBLY
(a) Disconnect the G18 and G19 combination meter assembly connectors.
(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 |
|---|---|---|---|---|
|
*1: w/o Stop and Start System
*2: w/ Stop and Start System *3: w/ Rear Seat Belt Warning System |
||||
|
G18-22 (B) - Body ground |
B - Body ground |
Auxiliary Battery power supply |
Ignition switch off |
11 to 14 V |
|
G18-38 (IG+) - Body ground |
L - Body ground |
Ignition power supply (IG signal) |
Ignition switch ON |
11 to 14 V*1 10.5 to 16 V*2 |
|
Ignition switch off |
Below 1 V |
|||
|
G18-23 (ES) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
G19-36 (RLSB) - Body ground*3 |
SB - Body ground |
Rear LH seat belt buckle switch signal |
Rear LH seat belt fastened |
10 kΩ or higher |
|
Rear LH seat belt unfastened |
Below 1 Ω |
|||
|
G19-19 (RCSB) - Body ground*3 |
B - Body ground |
Rear center seat belt buckle switch signal |
Rear center seat belt fastened |
10 kΩ or higher |
|
Rear center seat belt fastened |
Below 1 Ω |
|||
|
G19-35 (RRSB) - Body ground*3 |
LG - Body ground |
Rear RH seat belt buckle switch signal |
Rear RH seat belt fastened |
10 kΩ or higher |
|
Rear RH seat belt unfastened |
Below 1 Ω |
|||
CHECK AIRBAG ECU ASSEMBLY
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CHECK OCCUPANT DETECTION ECU
Click here
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