CAUTION / NOTICE / HINT

PROCEDURE

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Pre-collision System Customer Problem Analysis					Vehicle Brought to Workshop
					Year	Month	Day
Dealer name		Person in charge at headquarters			Telephone number
Shop name		Person in charge at shop
Frame type		Frame No.		First Registered Year		Total distance traveled
Customer Concerns (Include details)		Does not operate
		Operates abnormally
Date of malfunction occurrence (Since when)		Year	Month	Day	Approx. Time
Date of last inspection		Year	Month	Day
Frequency of problem symptoms		Once / Occasionally (times per day, times per month) / Every time certain conditions are met ( )
Weather	Sunny / Cloudy / Rain / Snow (Amount of snowfall cm) / Other ( )			Vehicle speed	Approximately ( ) km/h
Place	Prefecture/State/Providence (Attach a map if possible)
Driving path (where vehicle turned, where driver attempted to drive to, etc.) * Describe the conditions immediately after the occurrence in as much detail as possible.		Conditions of Occurrence Diagram
		Surrounding road conditions Describe whether there were any billboards, metal objects on the road (manholes), guardrails, pipes, cat's eyes, gate bars, etc.
Urban area / Suburbs / Highway / Other ( )			Road surface conditions		Temperature	About °C ( °F)
Direction of travel		Straight / Right turn / Left turn / Right curve / Left curve			Snow wall(s)	Y / N
Driving lane		Number of lanes on one side (lanes) / ( ) lane(s) from left			Backlighting	Y / N
Condition of external area around detection sensor			No foreign matter / Foreign matter (water, snow, ice, other)
Additional information about condition of vehicle exterior (other than above)
DTC		First Time (when vehicle brought to workshop)
		Second Time (after clearing DTC)
Status of operation switch		Pre-collision system switch		Early / Mid(Middle) / Late / OFF	VSC OFF switch		ON / OFF
Serial number of main part * Fill in when removing, installing or replacing part		Forward recognition camera
Describe the items to the right in as much detail as possible.	Driver operation	Accelerator pedal operated / Brake pedal operated / Steering wheel operated			for HV Model: Time elapsed after hybrid system was started for Gasoline Model: Time elapsed after engine was started	Approximately ( ) minutes
	Tire pressure inspection result	Front: LH ( ) kPa RH ( ) kPa Standard ( ) kPa
		Rear: LH ( ) kPa RH ( ) kPa Standard ( ) kPa
	Sensor optical axis inspection result	Forward recognition camera			Accident history	Y / N
		Millimeter wave radar sensor assembly			Accident history	Y / N
	Vehicle modified	Y ( ) / N
	Items installed or attached around windshield glass	Drive recorder* / Radar detector / Navigation unit (genuine/non-genuine) / ETC / Charms or toys / Other: *: As information regarding the item is important for the investigation, make sure to obtain the item if permission is given by the customer.

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(a) Measure the auxiliary battery voltage.

HINT:

If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

Standard Voltage:

11 to 14 V (Ignition switch off)

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

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(a) Check if a pre-collision system warning message is displayed on the multi-information display in the combination meter assembly.

HINT:

If more than one warning message is displayed, check in the order of A, B, C and D.

A

GO TO PROBLEM SYMPTOMS TABLE

C

GO TO STEP 7

D

GO TO STEP 10

B

(a) Using the Techstream, check if the CAN communication system is functioning normally.

for HV Model:

Click here

for Gasoline Model:

Click here

CAN Bus Check

OK:

CAN communication system is functioning normally.

NG

GO TO CAN COMMUNICATION SYSTEM for HV Model: Click here for Gasoline Model: Click here

OK

(a) Using the Techstream, check for DTCs.

Body Electrical > Pre-Collision System > Trouble Codes

(b) Make a note of the output DTCs.

B

GO TO DTC CHART (C142571)

C

GO TO STEP 9

A

(a) Using the Techstream, check for Vehicle Control History (RoB).

Body Electrical > Pre-Collision System > Utility

(b) Record any output Vehicle Control History (RoB).

A

GO TO SYMPTOM SIMULATION

B

GO TO VEHICLE CONTROL HISTORY

C

(a) Clear the Vehicle Control History (RoB).

Body Electrical > Pre-Collision System > Utility

(b) Recheck for Vehicle Control History (RoB).

(1) Check if the following Vehicle Control History (RoB) is output.

Body Electrical > Pre-Collision System > Utility

A

GO TO SYMPTOM SIMULATION

B

GO TO VEHICLE CONTROL HISTORY

(a) Clear the DTCs.

Body Electrical > Pre-Collision System > Clear DTCs

(b) Reproduce the detection conditions of the recorded DTC.

HINT:

Refer to the flowchart for the detection conditions for each of the DTCs.

(c) Recheck for DTCs.

(1) Attempt to duplicate the malfunction and check if the DTCs are output again.

Body Electrical > Pre-Collision System > Trouble Codes

A

GO TO SYMPTOM SIMULATION

B

GO TO DTC CHART

(a) Refer to Problem Symptoms Table for the pre-collision system.

Click here

B

GO TO PROBLEM SYMPTOMS TABLE

A

(a) Check the condition of the PCS warning light.

B

GO TO STEP 13

A

(a) Check for vehicle control history and note any codes that are output.

Body Electrical > Pre-Collision System > Utility

NEXT

GO TO VEHICLE CONTROL HISTORY

(a) Using the Techstream, check for DTCs (Confirmed).

Body Electrical > Pre-Collision System > Trouble Codes

(b) Make a note of the output DTCs (Confirmed).

B

GO TO STEP 15

A

(a) Check detection condition for the confirmed pre-collision system DTC.

Click here

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END (a) Explain to the customer the cause of the previously stored DTC and that the output reason has been cleared.

(a) Check for vehicle control history and note any codes that are output.

Click here

Body Electrical > Pre-Collision System > Utility

(1) Record the vehicle control history.

B

GO TO STEP 17

A

(a) Check the conditions when pre-collision system operates or does not operate.

Click here

A

END (OPERATION/NO OPERATION CONDITIONS OF PRE-COLLISION SYSTEM IS MET)

B

GO TO STEP 18

(a) Check for vehicle control history and note any codes that are output.

Click here

HINT:

Based on the customer's inquiry, check the corresponding factors in the vehicle control history, such as the detection time and date, trip information and elapsed time.

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END (a) Explain to the customer the cause of the previously stored vehicle control history and that the output reason has been cleared.

NOTICE:

Before checking for millimeter wave radar sensor beam axis misalignment, make sure that the radiator grille and front bumper are correctly installed and have not been damaged or modified.

(a) Adjust the reflector height.

Triangle Target: Click here

Flat Surface Target: Click here

(b) Place the reflector.

Triangle Target: Click here

Flat Surface Target: Click here

(c) Using the Techstream, check the amount of misalignment.

Body Electrical > Front Radar Sensor > Utility

Standard:

A

GO TO SYMPTOM SIMULATION

B

ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY Triangle Target: Click here Flat Surface Target: Click here Driving Adjustment: Click here