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Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control >> Dynamic Radar Cruise Control System >> DTC P1570: Radar Sensor Malfunction >> Inspection Procedure

Inspection Procedure

NOTE: When the millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed (See ADJUSTMENT  ).
  1. ADJUST MILLIMETER WAVE RADAR SENSOR 
    1. Refer to the ADJUSTMENT  (See ).

      HINT:

      It is necessary to make the ECM recognize specification information (whether the vehicle is equipped with the dynamic radar or not). When this procedure has not been carried out, this DTC may be output.

  2. CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM) 
    1. Using the Techstream, enter the following menus: Powertrain / Radar Cruise / Trouble Code.
    2. Clear the DTCs (See DTC CHECK/CLEAR  ).
    3. Perform the following to make sure the DTC detection conditions are met.

      HINT:

      If the detection conditions are not met, the system cannot detect the malfunction.

      1. Drive the vehicle at a speed of 40 km/h (25 mph) or more.
      2. Turn the cruise control main switch on to set the vehicle-to-vehicle distance control mode to the standby state.
    4. Check for DTCs (See DTC CHECK/CLEAR  ).

      OK: DTC P1570 is not output. 

    NG: REPLACE MILLIMETER WAVE RADAR SENSOR  (See ADJUSTMENT  )

    OK: END