DESCRIPTION
The skid control ECU (brake actuator assembly) measures the speed of each wheel by receiving signals from the speed sensors. These signals are used for recognizing whether all 4 wheels are operating properly. Therefore, all wheel signals must indicate the same speed.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1337 |
Diameter of the Tire is not Uniform |
The following occurs in 3 consecutive trips: At a vehicle speed of 20 km/h (12 mph) or more, there is a difference of 20% or more in the average speed between the front wheels and rear wheels for 20 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform zero point
calibration and store system information (See page
).
PROCEDURE
1. |
CHECK DTC |
(a) Check if any DTCs relating to the speed sensor circuit are output (See page
).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is output |
B |
B | ![]() |
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
2. |
CHECK TIRE SIZE |
(a) Check the tire size and condition of all 4 wheels.
OK:
All 4 tires are the same size and in the same condition.
NG | ![]() |
REPLACE TIRES SO THAT ALL 4 TIRES ARE SAME SIZE AND IN THE SAME CONDITION |
|
3. |
RECONFIRM DTC |
(a) Clear the DTC (See page
).
(b) Turn the ignition switch off.
(c) Perform the following 3 times:
Turn the ignition switch to ON and start the engine, drive the vehicle at a speed of 30 km/h (19 mph) or more for at least 30 seconds, and then stop the vehicle and turn the ignition switch off.
(d) Check if the same DTC is output (See page
).
Result |
Proceed to |
---|---|
DTC is output |
A |
DTC is not output |
B |
A | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
B | ![]() |
USE SIMULATION METHOD TO CHECK |
Tire Pressure Monitor Receiver Communication Stop (B1247)
DESCRIPTION
The main body ECU (multiplex network body ECU) and tire pressure warning ECU
and receiver are connected using 2 direct lines that they use to communicate with
each other.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...
Customize Parameters
CUSTOMIZE PARAMETERS
PROCEDURE
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Record the current settings before cus ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read
the precautionary notices concerning the SRS airbag system before servicing
(See page ).
If the side airbag was deployed, replace the front seat assembly with
a ne ...