Toyota RAV4 manuals

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:

On-vehicle inspection
1. INSPECT REAR AXLE HUB BEARING BACKLASH (a) Using a dial gauge, check for backlash near the center of the axle hub. Maximum: 0.05 mm (0.0020 in.) If backlash exceeds the maximum, replace the axle hub assembly. NOTICE: Ensure that the dial gauge is set at right angles to the measuremen ...

Driving position memory
Your preferred driving position (the position of the driver’s seat and outside rear view mirrors) can be recalled by pressing a button. Two different driving positions can be recorded into memory. Recording procedure Check that the shift lever is in P. Turn the engine switch to IGNI ...

Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
HINT: This DTC relates to the Accelerator Pedal Position (APP) sensor. DESCRIPTION Refer to DTC P2120 (See page ES-343). MONITOR DESCRIPTION The accelerator pedal position sensor is mounted on the accelerator pedal bracket. The accelerator pedal position sensor has 2 sensor elements ...

© 2011-2025 Copyright www.tsienna.net