POWER DOOR LOCK CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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INSPECT BATTERY VOLTAGE

If the voltage is below 11 V, recharge or replace the battery before proceeding.

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CHECK FOR DTC (ELECTRICAL POWER CONTROL SYSTEM)*

1. Using the intelligent tester, check if the electric power control system is functioning normally.

   Result

   Result	Proceed to
   DTC B22B3 is not output	A
   DTC B22B3 is output	B

   
   

   B

   Go to ELECTRIC POWER CONTROL SYSTEM Click here

   A

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

1. Use the intelligent tester to check if the CAN Communication System is functioning normally.

   Result

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

   
   

   B

   Go to CAN COMMUNICATION SYSTEM (for LHD) Click here

   C

   Go to CAN COMMUNICATION SYSTEM (for RHD) Click here

   A

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

1. Use the intelligent tester to check if the LIN Communication System is functioning normally.

   Result

   Result	Proceed to
   LIN DTC is not output	A
   LIN DTC is output	B

   
   

   B

   Go to LIN COMMUNICATION SYSTEM Click here

   A

CHECK FOR DTC*

1. Check for DTCs Click here.

2. Clear the DTCs Click here.

3. Recheck for DTCs Click here.

   Result

   Result	Proceed to
   DTC does not reoccur	A
   DTC reoccurs	B

   
   

   B

   Go to DIAGNOSTIC TROUBLE CODE CHART Click here

   A

PROBLEM SYMPTOMS TABLE

B

Go to step 8

A

OVERALL ANALYSIS AND TROUBLESHOOTING

1. Operation Check Click here

2. Data List /Active Test Click here

3. Terminals of ECU Click here

   
   

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ADJUST, REPAIR OR REPLACE

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CONFIRMATION TEST

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