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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Security And Locks - Keyless Access (W-Push Button Start) (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B1577 IMM Control Module EEPROM >> Except For C0 Model >> DTC Detecting Condition

Except For C0 Model: 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. Remove and install the battery.
  5. Turn the ignition switch to ON.
  6. After 5 seconds or more, read DTC. < Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . >
 Is B1577 displayed? Replace the keyless access CM (Control Module). < Ref. to KEYLESS ACCESS CM (Control Module) . > System is normal.
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