Subaru Crosstrek Service Manual: Dtc b1571 reference code incompatibility (immobilizer cm to ecm)

DTC detecting condition:

Incompatibility of reference code between keyless access CM (model without ID code box) or ID code box (model with ID code box) and ECM occurs.

Trouble symptom:

Engine will not start.

1.CHECK ECM.

Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

ECM registration was not performed properly.

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

2.REPLACE ECM.

1) Install the ECM from other normal operating vehicle (with push button start) which use same ECM to the vehicle to be diagnosed.

2) Perform ECM registration. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

Is ECM registration finished? And does the engine start?

Replace the ECM. Engine Control Module (ECM) > REMOVAL"> Install the ECM from other vehicle to the original vehicle.

Replace Keyless access CM (model without ID code box), Keyless Access CM"> or replace ID code box (model with ID code box). ID Code Box">

Dtc b1577 imm control module eeprom

Dtc u0155 lost communication with instrument panel cluster (ipc) control module

Other materials:

Dtc p0756 shift solenoid "b" performance/stuck off
CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0756 SHIFT SOLENOID "B" PERFORMANCE/STUCK OFFDTC detecting condition:Detected when two consecutive driving cycles with fault occur.Trouble symptom:• Acceleration is poor ...

Check list for interview Check
BODY CONTROL SYSTEM (DIAGNOSTICS) > Check List for InterviewCHECKInspect the following items regarding the vehicle’s state.Body Control System Check List for Interview Date of Vehicle Bring-in Year Month Day Customer’s ...

Seatbelt with shoulder belt and lap belt pretensioners
NOTE This section applies specifically to the following Subaru Ascent components. Driver's seatbelt Front passenger's seatbelt Seatbelt retractor assembly (shoulder belt pretensioner and adaptive force limiter) Lap belt pretensioner When the pretensioners in the Suba ...