Text in Illustration
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) See: Accessories and Optional
Equipment/Antitheft and Alarm Systems/Alarm Module/Service and Repair/Removal
OK -- Continue to next step.
4. REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (for Front Floor)
(a) Replace the indoor electrical key oscillator (for front floor) See: Accessories and Optional Equipment/Antitheft and Alarm
Systems/Keyless Entry/Antenna - Keyless Entry/Service and Repair/Electrical Key Oscillator (for Front Floor)/Removal.
NEXT -- Continue to next step.
5. CHECK DTC OUTPUT
(a) Clear the DTCs See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and Inspection/Reading and
Clearing Diagnostic Trouble Codes/Smart Access System With Push-Button Start (for Entry Function).
(b) Recheck for DTCs.
OK:
DTC B27A5 is not output.
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) See: Accessories and Optional
Equipment/Antitheft and Alarm Systems/Alarm Module/Service and Repair/Removal
OK -- END (INDOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE)
From 08/2009
THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): B27A5:
Open in Front Floor Electrical Key Oscillator Circuit
B27A5 - Open in Front Floor Electrical Key Oscillator Circuit
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the indoor electrical key oscillator (for front floor). To
detect the key inside the cabin, the indoor electrical key oscillator (for front floor) creates a detection area in the cabin.
DTC B27A5 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key
ECU assembly) and indoor electrical key oscillator (for front floor) terminals (between CLG5 and CLG3, or CG5B and CLGB).
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