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

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Other materials:

On-vehicle inspection
1. INSPECT BRAKE PEDAL HEIGHT (a) Check the brake pedal height. Pedal height from dash panel: 150.3 to 160.3 mm (5.917 to 6.311 in.) NOTICE: Do not adjust the pedal height. Doing so by changing the push rod length will structurally change the pedal ratio. 2. CHECK AND ADJUST STOP LIGHT S ...

Data list / active test
1. DATA LIST HINT: Using the intelligent tester's DATA LIST allows the status of a switch, sensor, actuator and other items to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.  Connect the intelligent tester (with CAN VIM) to t ...

Using the AUX port
To use the AUX port, connect a portable player, press the “AUDIO” button, then select “AUX” to display the audio control screen. Connecting a portable audio player Operating portable audio players connected to the audio system The volume can be adjusted using the vehicle’s audio contr ...

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