DTC B1571 Reference Code Incompatibility: DTC Detecting Condition

Reference code incompatibility between body integrated unit and ECM

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 PERFORM IGNITION KEY REGISTRATION. Perform registration to all keys used for the vehicle. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".	Is registration of all keys complete?	Finish the diagnosis.	Go to step 2 .
2 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other immobilizer DTC displayed?	Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Execute the registration procedure next. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".	Replace the ECM. Refer to ENGINE CONTROL MODULE (ECM) . Replace the body integrated unit. Refer to BODY INTEGRATED UNIT . Register all ignition keys (transponders). Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".