DTC B12D3: Power Control Unit IG Latch Circuit Error

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 ChecksBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS)Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode B - Control Unit Not CommunicatingBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode C - No DTCs and Output Won't Shut OFFBody Electrical Troubleshooting - B-CAN System Diagnosis Test Mode D - No DTCs and Output Won't Turn ON .

NOTE:  Make sure aftermarket accessories are not installed.

• 1. Problem verification:

  1. Clear the DTCs with the HDS.

  2. Do this procedure 5 times: Turn the vehicle to the OFF (LOCK) mode, ACCESSORY mode, ON mode, and OFF (LOCK) mode.

  3. Turn the vehicle to the ON mode.

  4. Check for DTCs with the HDS.

  DTC Description	DTC
  B12D3 Power control unit IG latch circuit error

  Is DTC B12D3 indicated?

  YES 

  Replace the keyless access control unit .

  NO 

  Intermittent failure, the system is OK at this time.