| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001RX2Y |
| Model Year Start: 2021 | Model: Camry HV | Prod Date Range: [10/2020 - ] |
| Title: CRUISE CONTROL: FRONT RADAR SENSOR SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2021 - 2024 MY Camry HV [10/2020 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
-
Before performing troubleshooting for the front radar sensor system, perform troubleshooting for the pre-collision system.
Click here
![2021 - 2024 MY Camry HV [10/2020 - ]; PRE-COLLISION: PRE-COLLISION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
-
The following 5 items are important points for problem analysis:
What
Vehicle model, system name
When
Date, time, occurrence frequency
Where
Road conditions
Under what conditions?
Driving conditions, weather conditions
How did it happen?
Problem symptoms
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3. |
PRE-CHECK |
(a) Measure the auxiliary battery voltage with the power 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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for CAN communication system DTCs.
Click here
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Result |
Proceed to |
|---|---|
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CAN DTCs are not output |
A |
|
CAN DTCs are output |
B |
| B |
|
|
|
5. |
CHECK FOR DTCs* |
(a) Using the Techstream, check for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTC C1A1100 is output |
B |
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DTCs other than C1A1100 are output |
C |
| A |
|
| B |
|
|
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6. |
RECONFIRM DTC OUTPUT* |
(a) Using the Techstream, clear the DTCs.
Body Electrical > Front Radar Sensor > 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.
Click here
(c) Using the Techstream, check for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
|
|
7. |
CHECK VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, check for Vehicle Control History (RoB).
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) Make a note of the output Vehicle Control History (RoB).
|
Result |
Proceed to |
|---|---|
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Vehicle Control History (RoB) codes are not output |
A |
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Vehicle Control History (RoB) code X2026 or X2028 is output |
B |
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Vehicle Control History (RoB) codes other than X2026 and X2028 are output |
C |
| A |
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USE SIMULATION METHOD TO CHECK
|
| B |
|
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8. |
RECONFIRM VEHICLE CONTROL HISTORY* |
(a) Using the Techstream, clear the Vehicle Control History (RoB).
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) Using the Techstream, check for Vehicle Control History (RoB).
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
|
Result |
Proceed to |
|---|---|
|
Vehicle Control History (RoB) codes are not output |
A |
|
Vehicle Control History (RoB) codes are output |
B |
| A |
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USE SIMULATION METHOD TO CHECK
|
| B |
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