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 p0068 map/maf - throttle position correlation
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0068 MAP/MAF - THROTTLE POSITION CORRELATIONDTC detecting condition:Detected when two consecutive driving cycles with fault occur.CAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode ...

Windshield washer fluid
Use windshield washer fluid. If windshield washer fluid is unavailable use clean water. In areas where water freezes in winter, use an anti-freeze type windshield washer fluid. SUBARU Windshield Washer Fluid contains 58.5% methyl alcohol and 41.5% surfactant, by volume. Its freezing tempera ...

Removal
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Transfer Driven GearREMOVAL1. Remove the manual transmission assembly from the vehicle. Manual Transmission Assembly > REMOVAL">2. Remove the back-up light switch and the neutral position switch. Switches and Harness > REMOVAL">3 ...