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Home >> Subaru >> 2016 >> Crosstrek Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Access System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B1577 IMM Control Module EEPROM >> For C0 And C5 Models >> DTC Detecting Condition
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For C0 And C5 Models: DTC Detecting Condition

DIAGNOSTIC 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.
  5. Read the DTC again. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . > < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . >
 Is DTC 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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