Use the following procedure to troubleshoot the blind spot monitor system.
*: Use the GTS.
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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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Measure the auxiliary battery voltage with the ignition switch off.
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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Use the GTS to check if the CAN communication system is functioning normally.
| Result | Proceed to |
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| CAN communication system DTCs are not output | A |
| CAN communication system DTCs are output (for Gasoline Model) | B |
| CAN communication system DTCs are output (for HV Model) | C |
A
B
C
Refer to DTC Check / Clear for the blind spot monitor system.
Record or print DTCs and freeze frame data, if necessary.
| Result | Proceed to |
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| DTCs are not output | A |
| DTCs are output | B |
A
B
Refer to Problem Symptoms Table.
| Result | Proceed to |
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| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms.
Click here
A
B
Refer to Terminals of ECU.
Refer to Diagnosis System.
Refer to Data List / Active Test.
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| Result | Proceed to |
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| When adjusting or repairing | A |
| When replacing | B |
A
B
Clear the DTCs.
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Confirm the blind spot monitor beam axis display and perform the blind spot monitor beam axis adjustment.
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