Both of the following conditions are met:
- The problem symptom indicates a parking assist monitor display malfunction and the problem symptom cannot be reproduced.
- DTC C1622 is output as "Hist" only.*
| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001C2MZ |
| Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - ] |
| Title: PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING; 2019 - 2022 MY Avalon HV [04/2018 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the parking assist monitor system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
(a) Ask the customer about the problems and the conditions at the time the malfunction occurred to make sure the problem symptom was not temporarily caused by radio waves in the surrounding environment.
HINT:
The parking assist monitor display may be temporarily distorted due to radio waves around the vehicle.
|
Problem Symptom |
Cause |
|---|---|
| *: DTCs output as "Hist" will not be output again after DTCs are cleared. | |
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The display may be temporarily distorted when the vehicle is close to an object that transmits radio waves, such as a telecommunication tower, an airport or a truck equipped with a transceiver. |
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3. |
INSPECT AUXILIARY BATTERY VOLTAGE |
(a) Measure the auxiliary battery voltage with the power switch off.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.
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4. |
SYSTEM CHECK |
(a) Check the vehicle specification.
|
Result |
Proceed to |
|---|---|
|
w/ Navigation System |
A |
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w/o Navigation System |
B |
| B |
|
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5. |
CHECK NAVIGATION SYSTEM |
(a) Refer to Navigation System.
Click here
![2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
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Result |
Proceed to |
|---|---|
|
Navigation system is normal |
A |
|
Navigation system is abnormal |
B |
| A |
|
| B |
|
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6. |
CHECK AUDIO AND VISUAL SYSTEM |
(a) Refer to Audio and Visual System.
Click here
|
Result |
Proceed to |
|---|---|
|
Audio and visual system is normal |
A |
|
Audio and visual system is abnormal |
B |
| B |
|
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7. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
|
Result |
Proceed to |
|---|---|
|
CAN communication system DTCs are not output |
A |
|
CAN communication system DTCs are output |
B |
| B |
|
|
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8. |
CHECK FOR DTC* |
(a) Check for DTCs and make a note of any codes that are output.
Chassis > Parking Assist Camera > Trouble Codes
Body Electrical > Navigation System > Trouble Codes
(b) Clear the DTCs.
Chassis > Parking Assist Camera > Clear DTCs
Body Electrical > Navigation System > Clear DTCs
(c) Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.
Chassis > Parking Assist Camera > Trouble Codes
Body Electrical > Navigation System > Trouble Codes
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Result |
Proceed to |
|---|---|
|
No DTCs are output |
A |
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DTCs are output |
B |
| B |
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9. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in Problem Symptoms Table |
A |
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Fault is listed in Problem Symptoms Table |
B |
| B |
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10. |
OVERALL ANALYSIS AND TROUBLESHOOTING |
(a) Diagnosis System
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
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11. |
ADJUST, REPAIR OR REPLACE |
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12. |
CONFIRMATION TEST |
| NEXT |
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END |
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