Toyota Venza: Yaw Rate Sensor Output Malfunction (C1448/98)
DESCRIPTION
The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has a built-in acceleration sensor and detects the vehicle condition.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1448/98 |
When the vehicle speed is 20 km/h (12 mph) or more, an invalid data signal is received from the yaw rate sensor for 120 seconds or more. |
Yaw rate and acceleration sensor |
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs (See page .gif)
).
(b) Start and idle the engine.
(c) Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 120 seconds, and then stop the engine.
(d) Check if the same DTC is recorded (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC (C1448/98) is output |
A |
|
DTC (C1448/98) is not output |
B |
| A | .gif) |
REPLACE YAW RATE AND ACCELERATION SENSOR |
| B | |
CHECK FOR INTERMITTENT PROBLEMS |
Performance Decline of Brake Function (C1441)
DESCRIPTION
The skid control ECU judges brake failure conditions have occurred based on the
signal from the brake pedal load sensing switch and master cylinder pressure sensor.
NOTICE:
Do not int ...
Control Module Communication Bus OFF (U0073/94,U0100/65,U0123/62,U0124/95,U0126/63)
DESCRIPTION
The skid control ECU receives the signals from the ECM, steering angle sensor,
and yaw rate and acceleration sensor via the CAN communication system.
DTC Code
DTC ...
Other materials about Toyota Venza:
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Enter the following menus: Body Electrical / Trouble Codes.
(d) Check for DTCs.
2. CLEAR DTC
(a) Connect the Techst ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARKING BRAKE SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch Condition
...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the lighting system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
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