DTC B2784: Antenna Coil Open / Short [10/2014 - ]: Procedure

1. Disconnect the D64 certification ECU (smart key ECU assembly) connector.
2. Disconnect the D46 engine switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D64-7 (CODE) - D46-8 (CODE)	Always	Below 1 Ω
   D64-9 (TXCT) - D46-7 (TXCT)	Always	Below 1 Ω
   D64-1 (VC5) - D46-10 (VC5)	Always	Below 1 Ω
   D64-24 (AGND) - D46-6 (AGND)	Always	Below 1 Ω
   D64-7 (CODE) or D46-8 (CODE) - Body ground	Always	10 kΩ or higher
   D64-9 (TXCT) or D46-7 (TXCT) - Body ground	Always	10 kΩ or higher
   D64-1 (VC5) or D46-10 (VC5) - Body ground	Always	10 kΩ or higher
   D64-24 (AGND) or D46-6 (AGND) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Temporarily replace the engine switch with a new or known good one (Refer to REMOVAL [10/2014 - ] ).

Result: 

NEXT 

See step  3

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

Result: 

NEXT 

See step  4

1. Check for DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

   HINT: 

   Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

   OK

   DTC B2784 is not output.

Result: 

OK 

END (ENGINE SWITCH WAS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

(Refer to REMOVAL [10/2014 - 10/2015] Refer to REMOVAL [10/2015 - ] )