Toyota Tundra (2015 year). Manual — part 259
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000001EFD03AX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: U0073/94,U0100/65,U0114/27,U0123
/62,U0124/69,U0126/63; Control Module Communication Bus OFF; 2015 MY Tundra [08/2014 - ]
DTC
U0073/94 Control Module Communication Bus OFF
DTC
U0100/65 Lost Communication with ECM / PCM
DTC
U0114/27 Lost Communication with 4-Wheel Drive Clutch Control Module
DTC
U0123/62 Lost Communication with Yaw Rate Sensor Module
DTC
U0124/69 Deceleration Sensor Communication Circuit Malfunction
DTC
U0126/63 Lost Communication with Steering Angle Sensor Module
DESCRIPTION
The skid control ECU exchanges signals with the ECM, steering angle sensor, yaw rate and deceleration sensor,
power steering ECU, main body ECU and combination meter via CAN communication.
DTC
CODE
DTC DETECTION CONDITIONS
TROUBLE AREA
U0073/94 Bus off conditions continue for approximately 0.8 seconds.
CAN communication system
U0100/65 CAN signal from ECM is lost or malfunctioning for 1.2 seconds.
CAN communication system
U0114/27
CAN signal from 4WD control ECU is lost or malfunctioning for
1.2 seconds.
CAN communication
system
4WD control ECU
U0123/62
Supplied voltage normal (9.7 V or more), skid control ECU
receives no yaw rate sensor data for 0.1 seconds.
CAN communication
system
Yaw rate and
deceleration sensor
U0124/69
Supplied voltage normal (9.7 V or more), skid control ECU
receives no yaw rate sensor data for 0.1 seconds.
CAN communication
system
Yaw rate and
deceleration sensor
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: U...
INSPECTION PROCEDURE
PROCEDURE
1.
RECONFIRM DTC
(a) Clear the DTC(s)
.
(b) Check if the same DTC(s) is output
.
Result
RESULT
PROCEED TO
DTC is output
A
DTC is not output
B
B
USE SIMULATION METHOD TO CHECK
A
GO TO CAN COMMUNICATION SYSTEM
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: U...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000000OSE03BX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ABS Warning Light Remains ON; 2015 MY
Tundra [08/2014 - ]
ABS Warning Light Remains ON
DESCRIPTION
1.
There is a malfunction in the skid control ECU internal circuit.
2.
There is an open or short in the CAN communication line between the combination meter and the skid
control ECU.
3.
HINT:
The Techstream cannot be used when there is a malfunction in the skid control ECU.
WIRING DIAGRAM
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: A...
INSPECTION PROCEDURE
NOTICE:
When replacing the VSC actuator assembly, perform zero point calibration
.
Make sure the skid control ECU is not in test mode before proceeding.
Before using these procedures, first check other DTCs which may cause the ABS warning light to remain
on.
PROCEDURE
1.
INSPECT CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output
.
Result
RESULT
PROCEED TO
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: A...
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