Dtc P1615 Communication Error From Distance Control Ecu To Ecm

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

REPLACE DISTANCE CONTROL ECU

CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

DTC P1615 Communication Error from Distance Control ECU to ECM


DESCRIPTION

The ECM sends the cruise control main switch signal, vehicle speed signal, etc. to the distance control ECU. The distance control ECU sends the acceleration signal, deceleration request signal, etc. to the ECM. The ECM controls cruise control according to these signals.

DTC Code
DTC Detection Condition
Trouble Area
P1615
The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and the data sent from the distance control ECU to the ECM is abnormal.
  1. Distance control ECU
  2. CAN communication system
  3. ECM

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System. Dtc P1615 Communication Error From Distance Control Ecu To Ecm


INSPECTION PROCEDURE

NOTICE:
When the distance control ECU is replaced with a new one, initialization must be performed (Click here).
1.REPLACE DISTANCE CONTROL ECU

  1. Replace the distance control ECU with a new one (Click here).

  1. Perform initialization (Click here).


NEXT


2.CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

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

  1. Clear the DTCs (Click here).

  1. 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 50 km/h (30 mph) or more.

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

  1. Check for DTCs (Click here).

    OK:
    DTC P1615 is not output.
Result
Result
Proceed to
OK
A
NG (for 1UR-FE)
B
NG (for 3UR-FE)
C


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)
A

END