Pre-Collision System (w/ Driver Monitor Camera)

PRE-COLLISION: PRE-COLLISION SYSTEM (w/ Driver Monitor Camera): C1A26: Lost Communication with Gigabit Video Interface
C1A26 - Lost Communication with Gigabit Video Interface

DESCRIPTION

The driving support ECU uses the front millimeter wave radar sensor, driver monitor camera and object recognition camera to detect obstacles in front of and behind the vehicle, and detect the direction that the driver's head is facing. Based on this information, the driving support ECU sends pre-collision control operation signals.

When a video signal format malfunction or communication stop is detected between the object recognition ECU and object recognition camera sensor, this DTC is output.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (OBJECT RECOGNITION ECU - OBJECT RECOGNITION CAMERA SENSOR)





(a) Disconnect the R67 ECU connector.

(b) Disconnect the X19 sensor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. REPLACE OBJECT RECOGNITION CAMERA SENSOR

(a) Replace the object recognition camera sensor Removal.

NEXT -- Continue to next step.

3. ADJUST OBJECT RECOGNITION CAMERA SENSOR

(a) Adjust the object recognition camera sensor Adjustments.

NEXT -- Continue to next step.

4. CHECK OBJECT RECOGNITION ECU

(a) Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Code.

(b) Select "Clear" and clear the data.

(c) Recheck for DTC.

OK:

DTC C1A26 is not output.

NG -- REPLACE OBJECT RECOGNITION ECU

OK -- END

5. REPLACE OBJECT RECOGNITION ECU

(a) Replace the object recognition ECU Removal.

NEXT -- Continue to next step.

6. ADJUST OBJECT RECOGNITION CAMERA SENSOR

(a) Adjust the object recognition camera sensor Adjustments.

NEXT -- Continue to next step.

7. CHECK DRIVING SUPPORT ECU

(a) Enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Code.

(b) Select "Clear" and clear the data.

(c) Recheck for DTC.

OK:

DTC C1A26 is not output.

NG -- REPLACE DRIVING SUPPORT ECU Removal

OK -- END