BLIND SPOT MONITOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS

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INSPECT AUXILIARY BATTERY VOLTAGE

1. Measure the auxiliary battery voltage.

   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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CHECK CAN COMMUNICATION SYSTEM*

1. Use the GTS to check if the CAN communication system is functioning normally.

   
   

   • for LHD: Click here

   • for RHD: Click here

   Result

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system (for LHD) DTC is output	B
   CAN communication system (for RHD) DTC is output	C

   
   

   B

   Go to CAN COMMUNICATION SYSTEM Click here

   C

   Go to CAN COMMUNICATION SYSTEM Click here

   A

CHECK FOR DTC AND FREEZE FRAME DATA*

1. Refer to DTC Check / Clear of the blind spot monitor system Click here.

2. Record or print DTCs and freeze frame data, if necessary Click here.

   Result

   Result	Proceed to
   DTCs are output	A
   DTCs are not output	B

   
   

   B

   Go to step 9

   A

DTC CLEAR*

1. Refer to DTC Check / Clear of the blind spot monitor system Click here.

   Tech Tips

   The current DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.

   
   

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RECHECK FOR DTC*

1. Refer to DTC Check / Clear of the blind spot monitor system Click here.

   Result

   Result	Proceed to
   DTCs are output	A
   DTCs are not output	B

   Tech Tips

   
   

   • Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.

   • Check the DTC and inspect the area that the code indicates.

   
   

   B

   Go to step 9

   A

DIAGNOSTIC TROUBLE CODE CHART

1. Find the output code in Diagnostic Trouble Code Chart Click here.

   
   

   NEXT

   Go to step 11

PROBLEM SYMPTOMS TABLE

1. Refer to Problem Symptoms Table Click here.

   Result

   Result	Proceed to
   Fault is not listed in Problem Symptoms Table	A
   Fault is listed in Problem Symptoms Table	B

   Tech Tips

   If the symptom does not recur and no DTC is output, attempt to reproduce the symptoms Click here.

   
   

   B

   ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

   A

PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM*

1. Refer to Terminals of ECU Click here.

2. Refer to Data List / Active Test Click here.

   
   

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CIRCUIT INSPECTION

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ADJUST, REPAIR OR REPLACE

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PERFORM BEAM AXIS INSPECTION

1. Perform the blind spot monitor beam axis inspection Click here.

   
   

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PERFORM CONFIRMATION TEST*

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