Toyota Sienna Service Manual: Improper Aiming of Radar Sensor Beam Axis
DTC P1572 Improper Aiming of Radar Sensor Beam Axis
DESCRIPTION
This DTC is output when the scanning angle of the laser sensor is incorrect. This DTC is also output when the laser sensor beam axis is determined to be in an incorrect position.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
P1572 |
The ECU detects that the laser sensor beam axis is in an incorrect position (0.15 sec. or more) while the dynamic laser cruise control is in operation | Laser sensor |
INSPECTION PROCEDURE
NOTICE: When the laser sensor is replaced with a new one, adjustment of the laser sensor beam axis must be performed
1 ADJUST LASER SENSOR
Refer to adjustment.
HINT: It is necessary to make the ECM recognize specification information (whether the vehicle is equipped with the dynamic laser cruise control system or not). When this procedure has not been carried out, this DTC may be output.
- Clear the DTCs and then recheck for DTCs.
OK: DTC is not output.
SYSTEM IS OK
Radar Sensor Malfunction
DTC P1570 Radar Sensor Malfunction
DESCRIPTION
The laser sensor emits laser beams towards an object in front and measures
the distance and direction of
the object by receiving the beam reflection ...
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 ...
Other materials:
Rear Clearance Sonar Sensor RH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and
sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PR ...
Reassembly
1. INSTALL FRONT DOOR WIRE LH
Install the wire with the 2 bolts.
Torque: Reference
8.0 N*m (82 kgf*cm, 71 in.*lbf)
NOTICE:
In order to prevent water leakage, be sure that
the lip of the rubber grommet does not turn up
or is not deformed when installing the wire.
Connect the wir ...
Data list / active test
HINT:
By accessing the DATA LIST displayed by the intelligent
tester, you can perform such functions as reading the values
of switches and sensors without removing any parts. Reading
the DATA LIST as the first step in troubleshooting is one
method to shorten labor time.
1. DATA LIST FOR OCCUPA ...
