Subaru Crosstrek Service Manual: Dtc b1571 reference code incompatibility (immobilizer cm 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.

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?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)">Go to Step 2.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)">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.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)">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.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)">Go to Step 4.

4.CHECK FOR ANY OTHER DTC ON DISPLAY.

1) Perform the Clear Memory Mode. Clear Memory Mode">

2) Read the DTC of the ECM. Read Diagnostic Trouble Code (DTC)">

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1571 REFERENCE CODE INCOMPATIBILITY (IMMOBILIZER CM TO ECM)">Go to Step 5.

5.PERFORM ECM REGISTRATION.

1) Replace the ECM. Engine Control Module (ECM)">

2) 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. Body Integrated Unit">

Dtc b1401 meter collation

Dtc b1402 immobilizer key collation

Other materials:

Dtc p0843 transmission fluid pressure sensor/switch "a" circuit high
CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0843 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "A" CIRCUIT HIGHDTC detecting condition:Immediately at fault recognitionTrouble symptom:Shift characteristics malfunctionCAUTION: ...

Removal
HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Ambient SensorREMOVAL1. Disconnect the ground cable from battery. Battery > REMOVAL">2. Remove the ambient sensor.(1) Disconnect the connector.(2) Release the claws, and then remove the ambient sensor from the bracket. ...

Seatbelt warning light and chime
Your vehicle is equipped with a seatbelt warning device at the driver's and front passenger's seat, as required by current safety standards. With the ignition switch turned to the "ON" position, this device reminds the driver and front passenger to fasten their seatbelts by illuminating ...