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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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Inspection
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Disassembly
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