DTC B27A8: Open in Outside Luggage Compartment Electrical Key Antenna Circuit: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK CONNECTOR CONNECTION CONDITION
- Turn the power switch off.
- Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and the electrical key antenna (for rear side).
OK
Connectors are properly connected.
NG → CONNECT CONNECTORS PROPERLY
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ELECTRICAL KEY ANTENNA)
- Disconnect the certification ECU (smart key ECU assembly) connector.
- Disconnect the electrical key antenna (for rear side) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition L63-19 (CLG8) - R19-1 (ANTE8) Always Below 1 Ω L63-20 (CG8B) - R19-2 (CLGB) Always Below 1 Ω L63-19 (CLG8) - Body ground Always 10 kΩ or higher L63-20 (CG8B) - Body ground Always 10 kΩ or higher R19-1 (ANTE8) - Body ground Always 10 kΩ or higher R19-2 (CLGB) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- INSPECT ELECTRICAL KEY ANTENNA
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition R19-1 (ANTE8) - R19-2 (CLGB) Always Below 1 Ω TEXT IN ILLUSTRATION*a Component without harness connected
(Electrical Key Antenna (for Rear Side))
NG → See step 6
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
- Replace the certification ECU (smart key ECU assembly). Refer to REMOVAL .
NEXT: Go to next step
- CHECK DTC OUTPUT
- Clear the DTCs. Refer to DTC CHECK / CLEAR .
- Recheck for DTCs.
OK
DTC B27A8 is not output.
NG → See step 6
OK → END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE)
- REPLACE ELECTRICAL KEY ANTENNA. Refer to REMOVAL