Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - CRUISE CONTROL

DESCRIPTION

INSPECTION PROCEDURE

CONFIRM DESIGNATION INFORMATION (DISTANCE CONTROL ECU)

CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

DTC P1617 Distance Control ECU Malfunction

DESCRIPTION

In the dynamic radar cruise control system, the ECM and the distance control ECU communicate with one another to control the system based on designation information. If the designation information of the ECM and the distance control ECU is different or the distance control ECU is malfunctioning, this DTC is recorded.

DTC CodeDTC Detection ConditionTrouble Area
P1617While the dynamic radar cruise control is either preparing for operation or operating, if designation signal from the ECM and designation return signal from the distance control ECU do not match, or the distance control ECU is malfunctioning for a certain amount of time or more.
Distance control ECU

INSPECTION PROCEDURE

  • NOTICE:
  • When the distance control ECU is replaced with a new one, initialization must be performed ().
1.CONFIRM DESIGNATION INFORMATION (DISTANCE CONTROL ECU)

Confirm the designation information.


Turn the engine switch on (IG).

Turn the cruise control main switch on.

Depress the brake pedal (brake switch on).

With the brake pedal depressed, push the cruise control main switch to +RES 3 times within 3 seconds, and check that the buzzer sounds.

  • NOTICE:
  • At this time, do not turn the headlight dimmer switch on. Due to the activation of the beam axis automatic adjustment mode, turning the headlight dimmer switch on may result in an incorrect setting. If the headlight dimmer switch is turned on by mistake, perform the beam axis adjustment again ().
NEXT
2.CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

Using the intelligent tester, enter the following menus: Powertrain / Radar Cruise / Trouble Code.

Clear the DTCs ().

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.

Drive the vehicle at a speed of 50 km/h (30 mph) or more.

Turn the cruise control main switch on to set the vehicle-to-vehicle distance control mode to the standby state.

Check for DTCs ().

  • OK:
  • DTC P1617 is not output.
  • HINT:
  • If DTC P1617 is still output after replacing the distance control ECU, replace the ECM.
NG
REPLACE DISTANCE CONTROL ECU ()
OK
END
CRUISE CONTROL
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
DYNAMIC RADAR CRUISE CONTROL SYSTEM