- Outer mirror control ECU assembly RH branch wire or connector
- Power source circuit of outer mirror control ECU assembly RH
- Outer mirror control ECU assembly RH
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000001DIRS |
| Model Year Start: 2019 | Model: Sienna | Prod Date Range: [08/2018 - ] |
| Title: NETWORKING: CAN COMMUNICATION SYSTEM: U0199; Lost Communication with "Door Control Module A"; 2019 - 2020 MY Sienna [08/2018 - ] | ||
|
DTC |
U0199 |
Lost Communication with "Door Control Module A" |
DESCRIPTION
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
U0199 |
No communication from the outer mirror control ECU RH. |
|
HINT:
For vehicle with seat position memory system only.
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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![2018 - 2020 MY Sienna [11/2017 - ]; NETWORKING: CAN COMMUNICATION SYSTEM: 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 (-) 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 (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) 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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- Inspect the fuses for circuits related to this system before performing the following procedure.
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. |
RECONFIRM DTC OUTPUT |
(a) Reconfirm DTCs.
HINT:
If DTC U1002 is output from Main Body of the main body ECU (multiplex network body ECU), this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1.
|
Result |
Proceed to |
|---|---|
|
DTC U1002 is not output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) |
A |
|
DTC U1002 is output from main body ECU (multiplex network body ECU) (Techstream display: Main Body) |
B |
| B |
|
|
|
2. |
CHECK FOR OPEN IN CAN BUS WIRE (OUTER MIRROR CONTROL ECU ASSEMBLY RH BRANCH WIRE) |
(a) Disconnect the cable from the negative (-) battery terminal.
|
(b) Disconnect the outer mirror control ECU assembly RH connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G3-9 (CANP) - G3-8 (CANN) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
| NG |
|
REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY RH - POWER SOURCE) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G3-7 (GND) - Body ground |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
(b) Reconnect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page
).
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|