Toyota Tundra (2015 year). Manual — part 2684
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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 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 (BLIND SPOT MONITOR SENSOR RH CAN
BRANCH WIRE)
(a) Disconnect the S6 blind spot monitor sensor RH connector.
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0233;...
OK
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
S6-2 (CA1P) - S6-7 (CA1N)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
NG
REPAIR OR REPLACE BLIND SPOT MONITOR
SENSOR RH CAN BRANCH WIRE OR CONNECTOR
(CA1P, CA1N)
4.
CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - 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) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
S6-10 (BRGD) - Body ground
Always
Below 1 Ω
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
S6-5 (BRB) - Body ground
Ignition switch ON
11 to 14 V
Text in Illustration
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0233;...
*a
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE BLIND SPOT MONITOR SENSOR RH
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0233;...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002VTO00QX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0208; Lost Communication with "Seat Control
Module A"; 2015 MY Tundra [08/2014 - ]
DTC
U0208
Lost Communication with "Seat Control Module A"
DESCRIPTION
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
U0208
There is no communication from the front power
seat control ECU with switch LH.
Power source or inside front power seat
control ECU and switch LH
Front power seat control ECU and switch
LH CAN branch wire or connector
Front power seat control ECU and switch
LH
For vehicles with a seat memory.
WIRING DIAGRAM
INSPECTION PROCEDURE
CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: U0208;...
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