Toyota Yaris: Pre-collision System / How To Proceed With Troubleshooting

1.

VEHICLE BROUGHT TO WORKSHOP

2.

CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK

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

Time elapsed after hybrid system 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.

3.

PRE-CHECK

4.

INSPECT MULTI-INFORMATION DISPLAY

"VSC Turned Off Pre-Collision Brake System Unavailable" is displayed

A

"Pre-Collision System Malfunction Visit Your Dealer" is displayed

B

Any of the following messages is displayed:

C

Warning message is not displayed

D

GO TO PROBLEM SYMPTOMS TABLE

GO TO STEP 7

GO TO STEP 10

5.

CHECK CAN COMMUNICATION SYSTEM*

GO TO CAN COMMUNICATION SYSTEM

6.

CHECK FOR DTCs*

DTCs are not output

A

DTC C142571 is output

B

DTCs other than C142571 are output

C

GO TO DTC CHART (C142571)

GO TO STEP 9

7.

CHECK VEHICLE CONTROL HISTORY*

Vehicle Control History (RoB)

Vehicle Control History (RoB) codes are not output

A

Vehicle Control History (RoB) code X2015, X2016, X2017, X2024, X2026, X2027, X2028 or X202B is output

B

Vehicle Control History (RoB) codes other than X2015, X2016, X2017, X2024, X2026, X2027, X2028 and X202B are output

C

GO TO SYMPTOM SIMULATION

GO TO VEHICLE CONTROL HISTORY

8.

RECONFIRM VEHICLE CONTROL HISTORY*

Vehicle Control History (RoB)

Vehicle Control History (RoB)

Vehicle Control History codes (RoB) are not output

A

Vehicle Control History codes (RoB) are output

B

GO TO SYMPTOM SIMULATION

GO TO VEHICLE CONTROL HISTORY

9.

RECONFIRM DTC OUTPUT*

DTCs are not output

A

DTCs are output

B

GO TO SYMPTOM SIMULATION

GO TO DTC CHART

10.

PROBLEM SYMPTOMS TABLE

Problem symptoms are not listed in the Problem Symptoms Table.

A

Problem symptoms are listed in the Problem Symptoms Table.

B

GO TO PROBLEM SYMPTOMS TABLE

11.

CHECK PCS WARNING LIGHT

Only the PCS warning light is illuminated.

A

The PCS warning light is not illuminated.

B

GO TO STEP 13

12.

CHECK FOR VEHICLE CONTROL HISTORY* (X2015)

Vehicle Control History (RoB)

GO TO VEHICLE CONTROL HISTORY

13.

CHECK FOR DTC* (PRE-COLLISION SYSTEM)

DTC is output

A

DTCs are not output

B

GO TO STEP 15

14.

CHECK CONFIRMED DTC DETECTION CONDITION*

END

15.

CHECK FOR VEHICLE CONTROL HISTORY* (PRE-COLLISION SYSTEM)

Vehicle Control History (RoB)

Vehicle control history is not output

A

Vehicle control history is output

B

GO TO STEP 17

16.

CONDITIONS WHEN PRE-COLLISION SYSTEM OPERATE OR NOT OPERATE

Any condition is met.

A

No condition is met.

B

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

GO TO STEP 18

17.

CHECK FOR VEHICLE CONTROL HISTORY* (PRE-COLLISION SYSTEM)

END

18.

INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)*

Front Beam Axis Misalignment Reading

Vertical Direction

-5 to 5 deg.

Horizontal Direction

-0.6 to 0.6 deg.

The beam axis values are within specification.

A

The beam axis values are not within specification.

B

GO TO SYMPTOM SIMULATION

ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY