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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (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 2015 Subaru Outback and 2015 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".
DIAGNOSTICS PROCEDURE

Step Check Yes No
1 CHECK DTC. 
  1. Turn the ignition switch to ON.
  2. Perform the clear memory operation of ECM.
  3. Turn the ignition switch to OFF.
  4. Register the ID code box. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".
  5. Read the DTC again.
 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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