Except For C0 And C5

DTC DETECTING CONDITION: 

• Defective keyless access CM
• When inaccessible to ROM in keyless access CM.

1. CHECK DTC  .
   1. Turn the ignition switch to ON.
   2. Perform the clear memory operation of ECM. Ref. to ENGINE (DIAGNOSTICS) (H4DO) >  CLEAR MEMORY MODE  . Ref. to ENGINE (DIAGNOSTICS) (H4DOTC) >  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 ENGINE (DIAGNOSTICS) (H4DO) >  READ DIAGNOSTIC TROUBLE CODE (DTC)  . Ref. to ENGINE (DIAGNOSTICS) (H4DOTC) >  READ DIAGNOSTIC TROUBLE CODE (DTC)  .

   Is B1577 displayed?

   Yes: Replace the keyless access CM. Ref. to SECURITY AND LOCKS >  KEYLESS ACCESS CM  .

   No: System is normal.