How To Proceed With Troubleshooting [11/2018 - ]: Procedure

Result

Result: 

NEXT 

See step  2

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 Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
		Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
		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 cancel switch		Far / Medium / Near / 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 EV control 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.

Result

Result: 

NEXT 

See step  3

1. Measure the auxiliary battery voltage with the power switch off.

   Standard Voltage

   11 to 14 V

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

2. Check the fuses and relays.
3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. 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 message is displayed, perform each inspection in the order listed in the table.

   Result

   Result	Proceed to
   "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: "Pre-Collision System Unavailable" "Pre-Collision System Unavailable Clean Sensor" "Front Camera Unavailable" "Front Camera Unavailable See Owner's Service Information"	C
   Warning message is not displayed	D

Result: 

A 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2018 - ]  

Result: 

C 

See step  7

Result: 

D 

See step  10

Result: 

B 

See step  5

1. Using the Techstream, check if the CAN communication system is functioning normally.

   HINT: 

   Refer to CAN Bus Check in CAN Communication System.

   Refer to DIAGNOSIS SYSTEM [11/2018 - ]

   OK

   CAN communication system is functioning normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

OK 

See step  6

1. Using the Techstream, check for DTCs.

   Body Electrical > Pre-Collision System > Trouble Codes 

2. Make a note of the output DTCs.

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC C1425-71 is output	B
   DTCs other than C1425-71 are output	C

Result: 

B 

GO TO DTC CHART (C1425-71). Refer to  DTC C1425-71: Stop Light Relay Actuator Stuck [11/2018 - ] 

Result: 

C 

See step  9

Result: 

A 

See step  7

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

   Body Electrical > Pre-Collision System > Utility 

   Tester Display
   Vehicle Control History (RoB)

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

   Result

   Result	Proceed to
   Vehicle Control History (RoB) codes are not output	A
   Vehicle Control History (RoB) code X2006, X2013, X2015, X2022, X2024, X2025, X2026 or X2028 is output	B
   Vehicle Control History (RoB) codes other than X2006, X2013, X2015, X2022, X2024, X2025, X2026 and X2028 are output	C

Result: 

A 

GO TO SYMPTOM SIMULATION. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

GO TO VEHICLE CONTROL HISTORY (X2006, X2013, X2015, X2022, X2024, X2025, X2026 or X2028). Refer to  VEHICLE CONTROL HISTORY [11/2018 - ] 

Result: 

C 

See step  8

1. Using the Techstream, clear the Vehicle Control History (RoB).

   Body Electrical > Pre-Collision System > Utility 

   Tester Display
   Vehicle Control History (RoB)

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

   Body Electrical > Pre-Collision System > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Result

   Result	Proceed to
   Vehicle Control History codes (RoB) are not output	A
   Vehicle Control History codes (RoB) are output	B

Result: 

A 

GO TO SYMPTOM SIMULATION. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

GO TO VEHICLE CONTROL HISTORY. Refer to  VEHICLE CONTROL HISTORY [11/2018 - ] 

1. Using the Techstream, clear the DTCs.

   Body Electrical > Pre-Collision System > Clear DTCs 

2. Reproduce the vehicle conditions that were present when the DTCs that were noted were stored.

   HINT: 

   Refer to each corresponding DTC for details on the detection conditions.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2018 - ] 

3. Using the Techstream, check for DTCs.

   Body Electrical > Pre-Collision System > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

A 

GO TO SYMPTOM SIMULATION. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2018 - ]  

1. Refer to Problem Symptoms Table for the pre-collision system.

   Refer to PROBLEM SYMPTOMS TABLE [11/2018 - ] 

   Result

   Result	Proceed to
   Problem symptoms are not listed in the Problem Symptoms Table.	A
   Problem symptoms are listed in the Problem Symptoms Table.	B

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2018 - ]  

Result: 

A 

See step  11

1. Check the condition of the PCS warning light.

   Result

   Result	Proceed to
   Only the PCS warning light is illuminated	A
   The PCS warning light is not illuminated	B

Result: 

B 

See step  13

Result: 

A 

See step  12

1. Check for vehicle control history and note any codes that are output.

   Refer to VEHICLE CONTROL HISTORY [11/2018 - ]

   Body Electrical > Pre-Collision System > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Result

   Proceed to
   NEXT

Result: 

NEXT 

GO TO VEHICLE CONTROL HISTORY. Refer to  VEHICLE CONTROL HISTORY [11/2018 - ] 

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2018 - ] 

   Body Electrical > Pre-Collision System > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC is output	B

Result: 

B 

See step  15

Result: 

A 

See step  14

1. Check detection condition for the confirmed pre-collision system DTC.

   Refer to FAIL-SAFE CHART [11/2018 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END 

1. Check for vehicle control history and note any codes that are output.

   Refer to VEHICLE CONTROL HISTORY [11/2018 - ]

   Body Electrical > Pre-Collision System > Utility 

   Tester Display
   Vehicle Control History (RoB)

   1. Record the vehicle control history.

   Result

   Result	Proceed to
   Vehicle control history is not output	A
   Vehicle control history is output	B

Result: 

B 

See step  18

Result: 

A 

See step  16

1. Check the conditions when pre-collision system operates or does not operate.

   Refer to PRECAUTION [11/2018 - ] 

   Result

   Result	Proceed to
   Any conditions is met	A
   Any conditions is not met	B

Result: 

A 

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

Result: 

B 

See step  17

1. Adjust the reflector height.

   Refer to ADJUSTMENT [11/2018 - ]

2. Place the reflector.

   Refer to ADJUSTMENT [11/2018 - ]

3. Connect the Techstream to the DLC3.
4. Turn the power switch on (IG).
5. Turn the Techstream on.
6. Turn the cruise control main switch on.
7. Enter the following menus: Body Electrical / Front Radar Sensor / Utility / Front Beam Axis Misalignment Reading.

   Body Electrical > Front Radar Sensor > Utility 

   Tester Display
   Front Beam Axis Misalignment Reading

8. Check the amount of misalignment and make a note.

   Standard (before performing adjustment)

   Front beam axis misalignment value 

   Vertical	-5.0 to 5.0 deg.
   Horizontal	-0.8 to 0.8 deg.

   Result

   Result	Proceed to
   Front beam axis misalignment value is within the specified range	A
   Front beam axis misalignment value is not within the specified range	B

Result: 

A 

GO TO SYMPTOM SIMULATION. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

Result: 

B 

PERFORM FRONT BEAM AXIS ADJUSTMENT. Refer to  ADJUSTMENT [11/2018 - ] 

1. Check for vehicle control history and note any codes that are output.

   Refer to VEHICLE CONTROL HISTORY [11/2018 - ]

   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.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END