DTC B1571: Reference Code Incompatibility (Immobilizer Control Module To ECM)

DTC DETECTING CONDITION:

Reference code incompatibility between body integrated unit and ECM

CAUTION: When the body integrated unit is replaced, registration of the immobilizer system is required. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Step	Check	Yes	No
1 CONFIRM NUMBER OF REGISTERED IMMOBILIZER KEY. Confirm the number of registered immobilizer key. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.	Is the number of registration 0?	Go to step 2 .	Go to step 3 .
2 PERFORM IMMOBILIZER SYSTEM REGISTRATION. Register the immobilizer system. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.	Is registration complete?	Finish the diagnosis.	Go to step 4 .
3 PERFORM ECM REGISTRATION. Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.	Is registration complete?	Finish the diagnosis.	Go to step 4 .
4 CHECK FOR ANY OTHER DTC ON DISPLAY. Perform the Clear Memory Mode. Ref. to CLEAR MEMORY MODE . Read the DTC of the ECM. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .	Is any other DTC displayed?	Perform the diagnosis according to DTC.	Go to step 5 .
5 PERFORM ECM REGISTRATION. Replace the ECM. Ref. to Engine Control Module (ECM) . Perform ECM registration. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.	Is registration complete?	Finish the diagnosis.	Replace the body integrated unit. Ref. to Body Integrated Unit .