DTC B1601: Keyless Access Control Unit Internal (CPU) 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
   B1601 Keyless access control unit internal (CPU) error

   Is DTC B1601 indicated?

   YES 

   Replace the keyless access control unit .

   NO 

   Intermittent failure, the system is OK at this time.