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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Security And Locks - Keyless Access (W/Push Button Start) (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B1577 IMM Control Module EEPROM >> For C0 And C5 Models >> Trouble Symptom

For C0 And C5 Models: Trouble Symptom

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Engine will not start.

CAUTION: For replacement procedure of ID code box, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.
DIAGNOSTICS PROCEDURE

Step Check Yes No
1 CHECK DTC. 
  1. Turn the ignition switch to ON.
  2. Perform the clear memory operation of ECM. < Ref. to CLEAR MEMORY MODE . > < Ref. to CLEAR MEMORY MODE . >
  3. Turn the ignition switch to OFF.
  4. Register the ID code box. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.
  5. Read the DTC again. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . >
 Is B1577 displayed? Replace the ID code box. < Ref. to ID CODE BOX . > Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
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