Toyota Sienna Service Manual: Brake System Malfunction
DTC P1578 Brake System Malfunction
DESCRIPTION
This DTC is output when the VSC system has a problem. Check the VSC system when this DTC is output
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
P1578 |
The ECM receives a brake system error signal for 0.2 sec. or more while the dynamic laser cruise control is in operation | VSC system |
INSPECTION PROCEDURE
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
1 CHECK BRAKE CONTROL SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING
END
Warning Buzzer Malfunction
DTC P1575 Warning Buzzer Malfunction
DESCRIPTION
The ABS & traction actuator (skid control ECU) receives an alarm demand
signal from the ECM and
operates the skid control buzzer. The buzzer s ...
Communication Error from Distance Control
ECU to ECM
DTC P1615 Communication Error from Distance Control
ECU to ECM
DTC U1101 Lost Communication with Distance Control
ECU
DESCRIPTION
The distance control ECU receives information about the area in f ...
Other materials:
Cursor or Map Rotates when Vehicle Stopped
INSPECTION PROCEDURE
1 CHECK CONDITION
Check with the customer if the vehicle has been turned
by a turntable.
OK:
Vehicle has not been turned by turntable.
HINT:
If the vehicle is turned on a turntable with the ignition
switch on, the system may store the angular velocity. As
a ...
On-vehicle inspection
1. INSPECT CAMSHAFT TIMING CONTROL VALVE ASSEMBLY
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
Start the engine and warm it up.
Select the intelligent tester from the ACTIVE TEST
menu.
Check the engine speed ...
Setting the vehicle speed
Press the “ON-OFF” button to
activate the cruise control.
Cruise control indicator will come
on*1 or will be displayed on the
multi-information display*2.
Press the button again to deactivate
the cruise control.
Accelerate or decelerate the
vehicle to the desired s ...
