DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:P1570

DTC Code DTC Name
P1570 Radar Sensor Malfunction

DESCRIPTION

When the ECM receives information that there is a malfunction in the millimeter wave radar sensor, DTC P1570 is stored.

DTC Code DTC Detection Condition Trouble Area
P1570 While the vehicle speed is 50 km/h (31 mph) or more with the cruise control switch on, the ECM receives a signal indicating that there is a malfunction in the millimeter wave radar sensor for 1 second. Millimeter wave radar sensor assembly

INSPECTION PROCEDURE

Note


  • When the ECM is replaced with a new one, initialization must be performed Click here.

  • When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the millimeter wave radar sensor assembly beam axis must be performed Click here.

PROCEDURE


  1. CONFIRM DESIGNATION INFORMATION


    1. Confirm the designation information.


      1. Turn the ignition switch to ON.

      2. Turn the cruise control switch on.

      3. With the brake pedal depressed, push the cruise control switch to +RES 3 times within 3 seconds. Check that the skid control buzzer sounds at this time.

        OK
        The skid control buzzer sounds (initialization is performed).

        Note


        • Do not turn the light control switch on at this time as doing so causes the beam axis to deviate. If the light control switch is turned on by mistake, readjust the beam axis Click here.

        • If initialization cannot be performed, first inspect the stop light switch circuit, cruise control switch circuit and skid control buzzer circuit.

      4. Turn the ignition switch off.


    NEXT

  2. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Perform the following to make sure the DTC detection conditions are met.

      Tech Tips

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


      1. Drive the vehicle at a speed of 50 km/h (31 mph) or more.

      2. Turn the cruise control switch on.

    3. Check for DTCs Click here.

      OK
      DTC P1570 is not output.

    NG

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY Click here

    OK

    END