| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001H93A |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (for HV Model (w/o Safe Exit Assist Function)): HOW TO PROCEED WITH TROUBLESHOOTING; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the blind spot monitor system.
- *: Use the Techstream.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
CUSTOMER PROBLEM ANALYSIS |
HINT:
If there are any scratches or impact marks on the rear bumper, perform the blind spot monitor beam axis confirmation. If any abnormalities are found, perform the blind spot monitor sensor installation condition inspection.
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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. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
![2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)
|
Result |
Proceed to |
|---|---|
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CAN communication system DTCs are not output. |
A |
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CAN communication system DTCs are output. |
B |
| B |
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5. |
CHECK FOR DTC AND FREEZE FRAME DATA* |
(a) Refer to DTC Check / Clear for the blind spot monitor system.
Body Electrical > Blind Spot Monitor Master > Trouble Codes
Body Electrical > Blind Spot Monitor Slave > Trouble Codes
(b) Record or print DTCs and freeze frame data, if necessary.
Click here
|
Result |
Proceed to |
|---|---|
|
DTCs are not output. |
A |
|
DTCs are output. |
B |
| B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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6. |
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 |
HINT:
If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.
Click here
| B |
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GO TO PROBLEM SYMPTOMS TABLE
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7. |
PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM* |
(a) Refer to Terminals of ECU.
Click here
(b) Refer to Diagnosis System.
Click here
(c) Refer to Data List / Active Test.
Click here
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8. |
ADJUST, REPAIR OR REPLACE |
|
Result |
Proceed to |
|---|---|
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When adjusting or repairing |
A |
|
When replacing |
B |
| B |
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9. |
CLEAR DTC* |
(a) Clear the DTCs.
Click here
Body Electrical > Blind Spot Monitor Master > Clear DTCs
Body Electrical > Blind Spot Monitor Slave > Clear DTCs
| NEXT |
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10. |
PERFORM BEAM AXIS INSPECTION |
(a) Enter Test Mode (refer to Blind Spot Monitor Beam Axis Inspection).
Click here
(b) Confirm the blind spot monitor beam axis display and perform the blind spot monitor beam axis adjustment.
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11. |
PERFORM CONFIRMATION TEST* |
| NEXT |
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END |
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