DTC P0505-00: Idle Control System [12/2021 - ]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   P0505-00 and other DTCs are output	A
   DTC P0505-00 is output	B

   HINT: 

   If any DTCs other than P0505-00 are output, troubleshoot those DTCs first.

Result: 

A 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 10/2023]  , or Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2023 - ] 

Result: 

B 

See step  2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the PCV hose connections.
2. Check the PCV valve.

   Refer to ON-VEHICLE INSPECTION [12/2021 - ]

   OK

   PCV hose and PCV valve are connected correctly and are not damaged.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE PCV VALVE OR HOSE 

Result: 

OK 

See step  3

1. Check the intake system for vacuum leaks.

   Refer to ON-VEHICLE INSPECTION [12/2021 - ]

   OK

   No leaks from the intake system.

   HINT: 

   Perform "Inspection After Repair" after repairing or replacing the intake system.

   Refer to INITIALIZATION [12/2021 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE INTAKE SYSTEM 

Result: 

OK 

See step  4

1. Check the throttle body with motor assembly condition.

   OK

   Throttle valve is not contaminated with foreign matter and moves smoothly.

   HINT: 

   Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

   Refer to INITIALIZATION [12/2021 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY (THROTTLE WITH THROTTLE POSITION SENSOR BODY ASSEMBLY). Refer to  REMOVAL [12/2021 - ] 

Result: 

OK 

See step  5

Pre-procedure1

• None

• Clear the DTCs.

  Powertrain > Engine > Clear DTCs 

  Result

  Proceed to
  NEXT

Post-procedure1

• Turn the ignition switch off and wait for at least 30 seconds.

Result: 

NEXT 

See step  6

Pre-procedure1

• Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

• Read the pending DTCs.

  Powertrain > Engine > Trouble Codes 

  Result

  Result	Proceed to
  DTCs are not output	A
  P0505-00 is output	B

Post-procedure1

• None

Result: 

A 

END 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [12/2021 - ]