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:
Removal
1. REMOVE FRONT WHEELS
2. REMOVE FRONT STABILIZER LINK ASSEMBLY LH
(a) Remove the 2 nuts and front stabilizer link assembly
LH.
HINT:
If the ball joint turns together with the nut, use a
hexagon (6 mm) wrench to hold the stud.
3. REMOVE FRONT STABILIZER LINK ASSEMBLY RH
HINT:
Remove the ...
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptoms. The potential causes of the symptoms
are listed in order of probability in the ''Suspected Area''
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Rep ...
Indicator Circuit
DESCRIPTION
This system has two indicator lights. One of the indicator lights is built
into the fold seat switch. This
indicator light receives power from the fold seat control ECU. It comes on or
blinks when the system
detects that an object is caught or when the seat operation conditions ar ...
