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If the corner sensor OFF indicator and corner
sensor indicator illuminate when the ignition
switch is turned to the ON position, the power supply system is normal.
Vehicle speed signal
or corner sensor/back sonar sensor-ECU may be defective.
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- Damaged harness wires and connectors
- Malfunction of corner sensor/back sonar sensor-ECU
- Malfunction of the engine-A/T-ECU
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Check whether the MPI system-related diagnosis
code is set.
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Q.
Is the check result normal?
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Diagnose the MPI system. Refer to
GROUP 13A, Troubleshooting or
GROUP 13B, Troubleshooting .
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![](../../../img/54/AC313414AO00ENG.png)
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Q.
Is the check result normal?
Go to Step 3.
Repair the defective
connector.
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After replacing the corner sensor/back
sonar sensor-ECU, inspect the corner sensor
system for normal operation.
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Q.
Is the check result normal?
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The
procedure is complete.
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Replace the
engine-A/T-ECU.
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