| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000002642W |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - 11/2022] |
| Title: ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT RADAR SENSOR SYSTEM (for TMMMS Made): HOW TO PROCEED WITH TROUBLESHOOTING; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022] | ||
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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
![2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: PRE-COLLISION SYSTEM (for TMMMS Made): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
- *: Use the GTS.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
PRE-CHECK |
(a) Measure the auxiliary battery voltage.
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.
(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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3. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Using the GTS, check that the CAN communication system is functioning normally.
Click here
OK:
CAN communication system is functioning normally.
| NG |
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|
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4. |
CHECK FOR DTCs* |
(a) Check for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes
(b) Make a note of any DTCs that are output.
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTC C1A1100 is output |
B |
|
DTCs other than C1A1100 are output |
C |
| B |
|
| C |
|
|
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5. |
CHECK VEHICLE CONTROL HISTORY* |
(a) Using the GTS, check for Vehicle Control History.
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) Record any output Vehicle Control History.
|
Result |
Proceed to |
|---|---|
|
Vehicle Control History codes are not output |
A |
|
Vehicle Control History code X2026 or X2028 is output |
B |
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Vehicle Control History codes other than X2026 and X2028 are output |
C |
| A |
|
| B |
|
|
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6. |
RECONFIRM VEHICLE CONTROL HISTORY* |
(a) Using the GTS, clear the Vehicle Control History.
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
(b) Using the GTS, check for Vehicle Control History.
Body Electrical > Front Radar Sensor > Utility
|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
|
Result |
Proceed to |
|---|---|
|
Vehicle Control History codes are not output |
A |
|
Vehicle Control History codes are output |
B |
| A |
|
| B |
|
|
7. |
RECONFIRM DTC OUTPUT* |
(a) 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) Recheck for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| A |
|
| B |
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