RBS System Symptom Diagnosis
Precautions: Precautions for Diagnosing Trouble · Precautions for RBS System · Precautions for Servicing RBS System · Precautions for Removing / Installing and Replacing RBS Control Module · Precautions for Control Systems · General safety (00)
NOTE:
•RBS system is controlled by RBS control module communicating with ESP® control module, BCM, ECM, steering angle sensor, ENG A-STOP control module and combination meter through CAN communication. Before performing symptom diagnosis, check that no DTC is indicated in these control modules.
•With the radiator grill installed, the millimeter wave radar cover cannot be removed. It is necessary to remove the radiator grill for visual inspection of the millimeter wave radar device (RBS control module).
•With the radiator grill installed, the millimeter wave radar cover cannot be removed. It is necessary to remove the radiator grill for visual inspection of the millimeter wave radar device (RBS control module).
| Condition | Possible Cause | Action |
|---|---|---|
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RBS does not work normally (it may work depending on the conditions)
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Frontal object is pedestrian or motorcycle
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—
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Frontal object is animal, tree, etc.
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—
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RBS does not work normally
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The vehicle is in a collision avoidance operation using steering and accelerator pedal
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—
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The vehicle ahead is as follows
– Low platform truck
– Vehicle with a special appearance such as car carrier
– Bicycle carrier or the like and the load or equipment protruding right and left and/or rear and above
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—
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There is a possibility to collide with a vehicle ahead partially
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—
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Adhesion of water droplets, snow or contaminant on millimeter wave radar cover
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Clean millimeter wave radar cover or radar surface.
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The vehicle is tilted by heavy load on the luggage compartment or rear seat
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Unload the vehicle.
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The vehicle is driven on a winding road continuously, or getting in or getting out of a corner
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—
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The vehicle is driven in a narrow traffic lane
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—
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A vehicle ahead is parking or running very slowly
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—
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RBS works unexpectedly
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The vehicle and a vehicle ahead pass each other in a corner
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—
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The vehicle passes ETC gate
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—
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RBS cannot be switched ON or OFF
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Faulty RBS OFF switch circuit
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•Check RBS OFF switch circuit.
•Check RBS OFF switch signal. |
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Warning timing cannot be changed by FAR/NEAR setting switch
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Faulty FAR/NEAR setting switch circuit
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•Check FAR/NEAR setting switch circuit.
•Check FAR/NEAR setting switch signal. |
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Master warning indicator light, RBS indicator light and RBS OFF light do not come ON with ignition “ON”
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Faulty RBS control module
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Check RBS system.
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Faulty combination meter
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Check combination meter.
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RBS indicator light come on sometimes
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RBS control stops temporarily
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Diagnose DTC C1640.
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