P1615

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: P1615: Communication Error from Distance Control ECU to ECM
P1615 - Communication Error from Distance Control ECU to ECM

DESCRIPTION

The driving support ECU receives information about the area in front of the vehicle from the millimeter wave radar sensor assembly and then sends a brake control demand signal (deceleration demand) and diagnosis signals, such as millimeter wave radar sensor assembly grime signals or millimeter wave radar sensor assembly malfunction signals, to the hybrid vehicle control ECU.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WHETHER DTC OUTPUT RECURS (DTC P1615)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs Dynamic Radar Cruise Control System.

(e) Perform the following to make sure that the DTC detection conditions are met.

HINT
If the detection conditions are not met, the malfunction cannot be detected.

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

(2) Turn the cruise control main switch on.

(3) Push the -SET switch to activate the cruise control.

(f) Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

(g) Read the DTCs Dynamic Radar Cruise Control System.

Result:





B -- REPLACE DRIVING SUPPORT ECU

A -- END

2. REPLACE DRIVING SUPPORT ECU

(a) Replace the driving support ECU Removal.

NEXT -- Continue to next step.

3. CHECK WHETHER DTC OUTPUT RECURS (DTC P1615)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs Dynamic Radar Cruise Control System.

(e) Perform the following to make sure that the DTC detection conditions are met.

HINT
If the detection conditions are not met, the malfunction cannot be detected.

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

(2) Turn the cruise control main switch on.

(3) Push the -SET switch to activate the cruise control.

(f) Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

(g) Read the DTCs Dynamic Radar Cruise Control System.

Result:





B -- REPLACE HYBRID VEHICLE CONTROL ECU Removal

A -- END