- CAN main bus wire or connector
- Combination meter assembly
- Central gateway ECU (network gateway ECU)
- No. 1 CAN junction connector
- No. 5 CAN junction connector
- No. 7 CAN junction connector
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001H5JC |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [02/2019 - 10/2022] |
| Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Open in Bus 5 Main Bus Line; 2019 - 2022 MY RAV4 HV [02/2019 - 10/2022] | ||
|
Open in Bus 5 Main Bus Line |
DESCRIPTION
There may be an open circuit in one of the CAN main bus wire when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher.
|
Symptom |
Trouble Area |
|---|---|
|
Resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. |
|
This malfunction is not related to the lines of a CAN branch or to ECUs or sensors connected to a CAN branch.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NOTICE:
-
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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![2019 - 2024 MY RAV4 HV [02/2019 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
- 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 1 minute or more before measuring the resistance.
-
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.
-
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 (NO. 1 CAN JUNCTION CONNECTOR) |
(a) Disconnect the cable from the negative (-) auxiliary battery terminal.
(b) Disconnect the No. 1 CAN junction connector.
|
*a |
Front view of wire harness connector (to No. 1 CAN Junction Connector) |
*b |
to No. 7 CAN Junction Connector |
|
*c |
to No. 5 CAN Junction Connector |
- |
- |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
Connected to |
|---|---|---|---|
|
G96-1 (CANH) - G96-12 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
No. 7 CAN junction connector |
|
G96-3 (CANH) - G96-14 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
No. 5 CAN junction connector |
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (No. 5 CAN junction connector CAN main wire) |
B |
|
NG (No. 7 CAN junction connector CAN main wire) |
C |
| A |
|
REPLACE NO. 1 CAN JUNCTION CONNECTOR |
| C |
|
|
|
2. |
CHECK FOR OPEN IN CAN BUS WIRE (NO. 5 CAN JUNCTION CONNECTOR) |
(a) Reconnect the G96 No. 1 CAN junction connector.
(b) Disconnect the No. 5 CAN junction connector.
|
*a |
Front view of wire harness connector (to No. 5 CAN Junction Connector) |
*b |
to No. 1 CAN Junction Connector |
|
*c |
to Central Gateway ECU (Network Gateway ECU) |
- |
- |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
Connected to |
|---|---|---|---|
|
G105-9 (CANH) - G105-20 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
No. 1 CAN junction connector |
|
G105-11 (CANH) - G105-22 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
Central gateway ECU (network gateway ECU) |
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (Central gateway ECU [network gateway ECU] CAN main wire) |
B |
|
NG (No. 1 CAN junction connector CAN main wire) |
C |
| A |
|
REPLACE NO. 5 CAN JUNCTION CONNECTOR |
| C |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR) |
|
|
3. |
CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 5 CAN JUNCTION CONNECTOR) |
(a) Reconnect the G105 No. 5 CAN junction connector.
|
(b) Disconnect the central gateway ECU (network gateway ECU) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G72-15 (CA5H) - G72-16 (CA5L) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK |
|
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 5 CAN JUNCTION CONNECTOR) |
|
4. |
CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR) |
(a) Reconnect the G96 No. 1 CAN junction connector.
(b) Disconnect the No. 7 CAN junction connector.
|
*a |
Front view of wire harness connector (to No. 7 CAN Junction Connector) |
*b |
to No. 1 CAN Junction Connector |
|
*c |
to Combination Meter Assembly |
- |
- |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
Connected to |
|---|---|---|---|
|
N52-1 (CANH) - N52-7 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
No. 1 CAN junction connector |
|
N52-2 (CANH) - N52-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
Combination meter assembly |
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (No. 1 CAN junction connector CAN main wire) |
B |
|
NG (Combination meter assembly CAN main wire) |
C |
| A |
|
REPLACE NO. 7 CAN JUNCTION CONNECTOR |
| B |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR) |
|
|
5. |
CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY - NO. 7 CAN JUNCTION CONNECTOR) |
(a) Reconnect the N52 No. 7 CAN junction connector.
|
(b) Disconnect the combination meter assembly connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G18-9 (CANH) - G18-25 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (COMBINATION METER ASSEMBLY - NO. 7 CAN JUNCTION CONNECTOR) |
|
|