Toyota Sienna Quiz
Cruise control

Improper Aiming of Radar Sensor Beam Axis

In this manual: Cruise control
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
~1min read

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.

  1. Clear the DTCs and then recheck for DTCs.

OK: DTC is not output.

SYSTEM IS OK

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