Toyota Tundra (2015 year). Manual — part 2683
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Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any other switches or any doors triggers related ECU and sensor
communication with the CAN, which causes resistance variation.
PROCEDURE
1.
PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the
battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice
before proceeding with work
.
2.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of
the CAN main wire and the CAN branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the
SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected
.
3.
CHECK FOR OPEN IN CAN BUS WIRE (OUTER MIRROR CONTROL ECU ASSEMBLY
CAN BRANCH WIRE)
(a) Disconnect the N8 outer mirror control ECU assembly
connector.
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0199;...
OK
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
N8-1 (CAN) - N8-21 (CGND)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
NG
REPAIR OR REPLACE OUTER MIRROR CONTROL
ECU ASSEMBLY CAN BRANCH WIRE OR
CONNECTOR (CAN, CGND)
4.
CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY -
BATTERY AND BODY GROUND)
(a) Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be
initialized after the cable is reconnected
.
(b) Disconnect the N7 outer mirror control ECU assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
N7-9 (GND) - Body ground
Always
Below 1 Ω
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
N7-3 (B) - Body ground
Always
11 to 14 V
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0199;...
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
N7-4 (ACC) - Body ground
Ignition switch ACC
11 to 14 V
Text in Illustration
*a
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0199;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000004U3500QX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0233; Lost Communication with Blind Spot
Monitor Master Module; 2015 MY Tundra [08/2014 - ]
DTC
U0233
Lost Communication with Blind Spot Monitor Master Module
DESCRIPTION
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
U0233
There is no communication from the blind spot
monitor sensor RH.
Blind spot monitor sensor RH CAN branch
wire or connector
Blind spot monitor sensor RH
For vehicles with a blind spot monitor sensor.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0233;...
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