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DTC B1602: Keyless Access Control Unit Internal (EEPROM) Error

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DTC Description DTC
B1602 Keyless access control unit internal (EEPROM) error  

DTC (Keyless Access Control Unit)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .

  1. Problem verification:

    - 1. Turn the vehicle to the ON mode.

    - 2. Clear the DTCs with the HDS.

    - 3. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

    - 4. Check for DTCs with the HDS.

    DTC Description DTC
    B1602 Keyless access control unit internal (EEPROM) error  

    Is DTC B1602 indicated?

    YES 

    Replace the keyless access control unit .

    NO 

    Intermittent failure, the system is OK at this time.