DTC P0101: Mass Air Flow Circuit Range / Performance Problem [08/2017 - 08/2019]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Read DTCs.
   RESULT
   
   

   Result	Proceed to
   P0101 is output	A
   P0101 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0101 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART 

Refer to:

DIAGNOSTIC TROUBLE CODE CHART [10/2016 - 08/2018] , or refer to

DIAGNOSTIC TROUBLE CODE CHART [08/2018 - 08/2019]

Result: 

A 

See step  2

1. Check the air induction system for vacuum leakage (Refer to PROCEDURE - Step 4 ).

   OK

   No leakage from air induction system.

   HINT: 

   Perform "Inspection After Repair" after repairing or replacing the air induction system (Refer to INITIALIZATION [08/2015 - 08/2019] ).

Result: 

NG 

REPAIR OR REPLACE AIR INDUCTION SYSTEM 

Result: 

OK 

See step  3

1. Check the PCV hose connections.

   OK

   PCV hose is connected correctly and is not damaged.

   HINT: 

   Perform "Inspection After Repair" after replacing the mass air flow meter (Refer to INITIALIZATION [08/2015 - 08/2019] ).

Result: 

OK 

REPLACE MASS AIR FLOW METER 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE PCV HOSE 

(Refer to REMOVAL [08/2015 - ] )