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Communication stop for "Combination Meter" is indicated on the "Communication Bus Check" screen of the Techstream.
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![2022 - 2025 MY RAV4 HV [12/2021 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
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Communication stop history for "Combination Meter" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Combination Meter" is 6 or more.)
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Communication system DTCs (DTCs that start with U) that correspond to "Combination Meter ECU Communication Stop Mode" in "DTC Combination Table" are output.
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| Last Modified: 06-02-2026 | 6.11:8.1.0 | Doc ID: RM1000000026PF3 |
| Model Year Start: 2023 | Model: RAV4 HV | Prod Date Range: [10/2022 - ] |
| Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Combination Meter ECU Communication Stop Mode; 2023 - 2025 MY RAV4 HV [10/2022 - ] | ||
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Combination Meter ECU Communication Stop Mode |
DESCRIPTION
|
Detection Item |
Symptom |
Trouble Area |
|---|---|---|
|
Combination Meter ECU Communication Stop Mode |
Any of the following conditions are met: |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NOTICE:
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Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.
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- Inspect the fuses for circuits related to this system before performing the following procedure.
- Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.
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After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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Some parts must be initialized and set when replacing or removing and installing parts.
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After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.
DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.
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After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.
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- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
HINT:
- Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
- When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.
PROCEDURE
|
1. |
CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal.
for 7 Inch Multi-information Display Type
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
for 12.3 Inch Multi-information Display Type
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
(b) Disconnect the combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
for 7 Inch Multi-information Display Type
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G18-9 (CANH) - G18-25 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
for 12.3 Inch Multi-information Display Type
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G140-31 (CANH) - G140-14 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR |
|
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below.
for 7 Inch Multi-information Display Type
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G18-23 (ES) - Body ground |
Cable disconnected from negative (-) auxiliary battery terminal |
Below 1 Ω |
for 12.3 Inch Multi-information Display Type
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G141-2 (ES) - Body ground |
Cable disconnected from negative (-) auxiliary battery terminal |
Below 1 Ω |
for 7 Inch Multi-information Display Type
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
for 12.3 Inch Multi-information Display Type
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
(b) Reconnect the cable to the negative (-) auxiliary battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
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(c) Measure the voltage according to the value(s) in the table below.
for 7 Inch Multi-information Display Type
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G18-22 (B) - Body ground |
Ignition switch off |
11 to 14 V |
|
G18-38 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
for 12.3 Inch Multi-information Display Type
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G141-5 (B) - Body ground |
Always |
11 to 14 V |
|
G141-6 (IG+) - Body ground |
Ignition switch ON |
10.5 to 16 V |
|
Ignition switch off |
Below 1 V |
|
|
|
|