DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [10/2022 - 10/2024]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   P0100-64 and other DTCs are output	A
   P0100-64 is output	B

   HINT: 

   If any DTCs other than P0100-64 are output, troubleshoot those DTCs first.

Result: 

A 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 08/2023]  , or Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - 10/2024] 

Result: 

B 

See step  2

1. Check the intake system for vacuum leaks.

   Refer to ON-VEHICLE INSPECTION [10/2022 - ]

   OK

   No leaks from intake system.

   HINT: 

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

   Refer to INITIALIZATION [10/2022 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE INTAKE SYSTEM 

Result: 

OK 

See step  3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Refer to INSPECTION [10/2022 - ]

   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  4

Refer to ON-VEHICLE INSPECTION [10/2022 - ]

Result

Result: 

NEXT 

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.

• Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  Powertrain > Engine > Utility 

  Tester Display
  All Readiness

• Input the DTC: P0100-64.
• Check the DTC judgment result.

  Result

  Proceed to
  NEXT

Post-procedure1

• None.

Result: 

NEXT 

END