- "Pre-Collision System Unavailable See Owner's Manual"
- "Pre-Collision System Out of Temperature Range Unavailable See Owner's Manual"
- "Pre-Collision System Radar In Self Calibration Unavailable See Owner's Manual"
- "Front Camera Out of Temperature Range Unavailable Wait until Normal Temperature"
- "Front Camera Unavailable See Owner's Manual"
| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001YNYA |
| Model Year Start: 2022 | Model: Avalon HV | Prod Date Range: [08/2021 - ] |
| Title: PRE-COLLISION: PRE-COLLISION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2022 MY Avalon Avalon HV [08/2021 - ] | ||
|
HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use these procedures to troubleshoot the pre-collision system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK |
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Pre-collision System Customer Problem Analysis |
Vehicle Brought to Workshop |
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Year |
Month |
Day |
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Dealer name |
Person in charge at headquarters |
Telephone number |
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Shop name |
Person in charge at shop |
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Frame type |
Frame No. |
First Registered Year |
Total distance traveled |
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Customer Concerns (Include details) |
Does not operate |
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Operates abnormally |
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Date of malfunction occurrence (Since when) |
Year |
Month |
Day |
Approx. Time |
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Date of last inspection |
Year |
Month |
Day |
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Frequency of problem symptoms |
Once / Occasionally (times per day, times per month) / Every time certain conditions are met ( ) |
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Weather |
Sunny / Cloudy / Rain / Snow (Amount of snowfall cm) / Other ( ) |
Vehicle speed |
Approximately ( ) km/h |
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Place |
Prefecture/State/Providence (Attach a map if possible) |
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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 
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Surrounding road conditions Describe whether there were any billboards, metal objects on the road (manholes), guardrails, pipes, cat's eyes, gate bars, etc. |
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Urban area / Suburbs / Highway / Other ( ) |
Road surface conditions |
Temperature |
About °C ( °F) |
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Direction of travel |
Straight / Right turn / Left turn / Right curve / Left curve |
Snow wall(s) |
Y / N |
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Driving lane |
Number of lanes on one side (lanes) / ( ) lane(s) from left |
Backlighting |
Y / N |
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Condition of external area around detection sensor |
No foreign matter / Foreign matter (water, snow, ice, other) |
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Additional information about condition of vehicle exterior (other than above) |
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DTC |
First Time (when vehicle brought to workshop) |
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Second Time (after clearing DTC) |
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Status of operation switch |
Pre-collision system cancel switch |
Far / Medium / Near / OFF |
VSC OFF switch |
ON / OFF |
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Serial number of main part * Fill in when removing, installing or replacing part |
Forward recognition camera |
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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 or engine was started |
Approximately ( ) minutes |
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Tire pressure inspection result |
Front: LH ( ) kPa RH ( ) kPa Standard ( ) kPa |
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Rear: LH ( ) kPa RH ( ) kPa Standard ( ) kPa |
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Sensor optical axis inspection result |
Forward recognition camera |
Accident history |
Y / N |
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Millimeter wave radar sensor assembly |
Accident history |
Y / N |
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Vehicle modified |
Y ( ) / N |
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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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3. |
PRE-CHECK |
(a) Measure the auxiliary battery voltage with the ignition switch off.
Standard voltage:
11 to 14 V
HINT:
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
(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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4. |
CHECK MULTI-INFORMATION DISPLAY |
(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, D and E.
|
Result |
Proceed to |
|---|---|
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"VSC Turned Off Pre-Collision Brake System Unavailable" is displayed |
A |
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"Pre-Collision System Malfunction Visit Your Dealer" is displayed |
B |
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"Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" is displayed |
C |
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Any of the following messages is displayed: |
D |
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Pre-collision system warning message is not displayed |
E |
| A |
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| C |
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| D |
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| E |
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5. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for CAN communication system DTCs.
for HV Model: Click here
![2022 MY Avalon HV [08/2021 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)
for Gasoline Model: Click here
|
Result |
Proceed to |
|---|---|
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CAN DTCs are not output |
A |
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CAN DTCs are output |
B |
| B |
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GO TO CAN COMMUNICATION SYSTEM for HV Model: Click here
for Gasoline Model: Click here
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6. |
CHECK FOR DTCs* |
(a) Check for DTCs.
Body Electrical > Pre-Collision System > Trouble Codes
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTC (C142571) is output |
B |
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A DTC other than (C142571) is output |
C |
| B |
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| C |
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7. |
CHECK VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, check for Vehicle Control History (RoB).
Body Electrical > Pre-Collision System > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) If the Vehicle Control History (RoB) is output, record it.
|
Result |
Proceed to |
|---|---|
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Vehicle control history is not output |
A |
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Vehicle control history (X2013, X2015, X2022, X2025, X2026 or X2028) is output |
B |
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Vehicle control history other than (X2013, X2015, X2022, X2025, X2026 and X2028) is output |
C |
| A |
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| B |
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8. |
RECHECK VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, clear the Vehicle Control History (RoB).
Body Electrical > Pre-Collision System > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) Using the Techstream, check for Vehicle Control History (RoB).
Body Electrical > Pre-Collision System > Utility
|
Tester Display |
|---|
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Vehicle Control History (RoB) |
|
Result |
Proceed to |
|---|---|
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Vehicle Control History (RoB) is not output |
A |
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Vehicle Control History (RoB) is output |
B |
| A |
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| B |
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9. |
CHECK FOR DTCs* |
(a) Using the Techstream, clear the DTCs.
Body Electrical > Pre-Collision System > Clear DTCs
(b) 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.
(c) Using the Techstream, check if the DTCs are output again.
Body Electrical > Pre-Collision System > Trouble Codes
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Result |
Proceed to |
|---|---|
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DTCs are not output |
A |
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DTCs are output |
B |
| A |
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| B |
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10. |
CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Check whether the millimeter wave radar sensor assembly and surrounding area is dirty or obstructed by foreign matter.
HINT:
Check that the following situations do not occur.
- A non-genuine radar sensor cover is installed
- The millimeter wave radar sensor assembly or radar sensor cover and its surrounding area are dirty
- An accessory, such as bull bars, a grille guard, etc., which interferes with millimeter radio waves is installed
- The radar sensor cover or its surrounding area has been painted or has a sticker attached
- There is foreign matter between the radar sensor cover and millimeter wave radar sensor assembly
(b) Clean away any dirt or foreign matter that is adhering to the area around the millimeter wave radar sensor assembly.
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11. |
CHECK MULTI-INFORMATION DISPLAY |
NOTICE:
Before inspecting the multi-information display, be sure to first turn the ignition switch off and then on (IG) again.
(a) Turn the ignition switch off.
(b) Turn the ignition switch to ON.
(c) Check whether "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" is displayed on the multi-information display.
|
Result |
Proceed to |
|---|---|
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Not displayed |
A |
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Displayed |
B |
| B |
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ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY Triangle Target: Click here
Flat Surface Target: Click here
Driving Adjustment: Click here
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12. |
READ VALUE USING TECHSTREAM (ON-LINE CALIBRATION ANGLE (HORIZONTAL)) |
(a) Using the Techstream, read the following Data List items for the front radar system.
Body Electrical > Front Radar Sensor > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
On-Line Calibration Angle (Horizontal) |
Calibrated angle value (horizontal) |
-12.8 to 12.7 deg |
Learned value |
- |
Body Electrical > Front Radar Sensor > Data List
|
Tester Display |
|---|
|
On-Line Calibration Angle (Horizontal) |
Standard:
The value displayed is less than -0.5 to 0.5 deg.
| NG |
|
ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY Triangle Target: Click here
Flat Surface Target: Click here
Driving Adjustment: Click here
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13. |
EXPLAIN TO CUSTOMER |
(a) Explain to the customer that the "Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" message on the multi-information display was caused by dirt or foreign matter adhering to the area around the millimeter wave radar sensor assembly, and that the situation has been corrected.
| NEXT |
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END |
|
14. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in Problem Symptoms Table |
A |
|
Fault is listed in Problem Symptoms Table |
B |
| B |
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15. |
CHECK PCS WARNING LIGHT |
(a) Check the condition of the PCS warning light.
|
Result |
Proceed to |
|---|---|
|
Only the PCS warning light is illuminated |
A |
|
The PCS warning light is not illuminated |
B |
| B |
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16. |
CHECK VEHICLE CONTROL HISTORY* (X2015) |
(a) Check for vehicle control history and note any codes that are output.
Body Electrical > Pre-Collision System > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
| NEXT |
|
|
17. |
CHECK FOR DTCs* |
(a) Check for DTCs.
Body Electrical > Pre-Collision System > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are output |
A |
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DTCs are not output |
B |
| B |
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18. |
CHECK CONFIRMED DTC DETECTION CONDITION* |
(a) Check detection condition for the confirmed pre-collision system DTC.
Click here
| NEXT |
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END Explain to the customer the cause of the previously stored DTC and that the output reason has been cleared. |
|
19. |
CHECK VEHICLE CONTROL HISTORY* |
(a) Check for vehicle control history and note any codes that are output.
Body Electrical > Pre-Collision System > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(1) Record the vehicle control history.
|
Result |
Proceed to |
|---|---|
|
Vehicle control history is not output |
A |
|
Vehicle control history is output |
B |
| B |
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|
20. |
CONDITIONS WHEN PRE-COLLISION SYSTEM OPERATE OR NOT OPERATE |
(a) Check the conditions when pre-collision system operates or does not operate.
Click here
|
Result |
Proceed to |
|---|---|
|
No condition is met |
A |
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Any condition is met |
B |
| B |
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END (OPERATION/NO OPERATION CONDITIONS OF PRE-COLLISION SYSTEM IS MET) |
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21. |
INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY* (FRONT BEAM AXIS MISALIGNMENT READING) |
NOTICE:
Before performing beam axis adjustment, check the fitting of the front bumper cover and radiator grille assembly and confirm that there is no warping or deformation.
(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) Turn the cruise control main switch on.
(d) Check the amount of misalignment and make a note.
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Front Beam Axis Misalignment Reading |
Standard (before performing adjustment):
Front beam axis misalignment value
|
Vertical |
-5.0 to 5.0 deg. |
|
Horizontal |
-0.6 to 0.6 deg. |
|
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 |
| A |
|
| B |
|
PERFORM FRONT BEAM AXIS ADJUSTMENT Triangle Target: Click here
Flat Surface Target: Click here
Driving Adjustment: Click here
|
|
22. |
CHECK VEHICLE CONTROL HISTORY* (PRE-COLLISION SYSTEM) |
(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.
| NEXT |
|
END (a) Explain to the customer the cause of the previously stored vehicle control history and that the output reason has been cleared. NOTICE: After the explanation, make sure to clear vehicle control history. Body Electrical > Pre-Collision System > Utility
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