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.
|
-
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
|
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.
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
(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
|
A
|
|
|
2.
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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.
|
|
*a
|
Front view of wire harness connector
(to Outer Mirror Control ECU Assembly RH)
|
|
|
(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
|
OK
|
|
|
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:
Tester Connection
|
Switch Condition
|
Specified Condition
|
G3-6 (CPUB) - Body ground
|
Always
|
11 to 14 V
|
G3-5 (SIG) - Body ground
|
Ignition switch ON
|
11 to 14 V
|
|
|
*a
|
Front view of wire harness connector
(to Outer Mirror Control ECU Assembly RH)
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|