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 EXHAUST PIPE ASSEMBLY
HINT:
(See page EX-8)
2. REMOVE PROPELLER WITH CENTER BEARING
SHAFT ASSEMBLY
HINT:
(See page PR-3)
3. REMOVE REAR DIFFERENTIAL FILLER PLUG
(a) Using a hexagon wrench (10 mm), remove the filler
plug and gasket.
4. REMOVE REAR DIFFERENTIAL DRAIN PLUG
(a ...
Removal
HINT:
Remove the RH side by the same procedure as the LH side.
1. REMOVE FRONT WHEEL
2. DRAIN BRAKE FLUID
NOTICE:
Wash the brake fluid off immediately if it attaches to
any painted surface.
3. REMOVE FRONT DISC BRAKE CYLINDER SUBASSEMBLY
(a) Remove the union bolt and 2 gaskets from the f ...
Short to GND in Curtain Shield Squib LH Circuit
DTC B1167/85 Short to GND in Curtain Shield Squib LH Circuit
DESCRIPTION
The curtain shield squib LH circuit consists of the center airbag sensor
assembly and the curtain shield
airbag assembly LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1167/85 is ...
