Power Source Mode does not Change: Procedure

1. Delete the DTCs.

   HINT: 

   After all DTCs are cleared, check if the trouble occurs again 5 seconds after the engine switch is turned on (IG).

2. Check for DTCs again.

   OK

   No DTC is output.

NG → GO TO  DIAGNOSTIC TROUBLE CODE CHART 

OK: Go to next step 

1. When the key is inside the vehicle and the shift lever position is in P, check that depressing the brake pedal causes the engine switch indicator to illuminate green.

   Result

   Result	Proceed to
   Indicator illuminates green	A
   Engine switch indicator circuit is normal but indicator does not illuminate green	B
   Room oscillator recognizes key but indicator does not illuminate green	C

C → GO TO  Engine Switch Indicator Circuit  

B → GO TO  Room Oscillator does not Recognize Key 

A → REPLACE POWER SOURCE CONTROL ECU