DTC P0101: MAF Sensor Circuit Range/Performance Problem (2013-15)

DTC (PGM-FI)

1. Parts condition check:

   Check for poor connections or damage to these parts:

   • PCV hose
   • Intake air duct
   • Air cleaner
   • Purge (PCS) line
   • Brake booster
   • Brake booster hose

   Are the parts OK?

   YES 

   Go to step 2.

   NO 

   Repair or replace the damaged part(s), then do the repair verification.

2. Intake air duct visual check:

   Check for damage or looseness of the intake air duct in the air cleaner.

   Is it OK?

   YES 

   Go to step 3.

   NO 

   Reconnect or replace the intake air duct in the air cleaner, then do the repair verification.

3. Air cleaner element visual check:

   Check for a dirty air cleaner element.

   Is it dirty?

   YES 

   Replace the air cleaner element , then do the repair verification.

   NO 

   Go to step 4.

4. MAF sensor signal check (without engine running):

   Press the engine start/stop button to select the OFF mode.

   - 2. Press the engine start/stop button to select the ON mode.

   - 3. Check the parameter(s) below with the HDS.

   Signal	Threshold	Current conditions
   Values	Unit	Values	Unit
   MAF SENSOR	About 0.2	g/s

   Do the current condition(s) match the threshold?

   YES 

   Go to step 5.

   NO 

   Replace the MAF sensor/IAT sensor , then do the repair verification.

5. MAF sensor signal check (with engine running):

   Start the engine.

   - 2. Vary the engine speed between 2, 000 rpm and 3, 000 rpm.

   - 3. Check the MAF SENSOR in the DATA LIST with the HDS.

   Signal	Current conditions
   Values	Unit
   MAF SENSOR

   Does the reading change?

   YES 

   Go to step 6.

   NO 

   Replace the MAF sensor/IAT sensor , then do the repair verification.

6. MAF sensor check:

   Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

   - 2. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:

   • ENGINE SPEED
   • VEHICLE SPEED
   • MAP SENSOR
   • TP SENSOR

   Freeze Data

   Signal	Current conditions
   Values	Unit
   ENGINE SPEED
   VEHICLE SPEED
   MAP SENSOR
   TP SENSOR

   - 3. Monitor the OBD STATUS for DTC P0101 with the HDS.

   DTC Description	OBD STATUS
   P0101 MAF Sensor Circuit Range/Performance Problem

   Does the HDS indicate FAILED?

   YES 

   Replace the MAF sensor/IAT sensor , then do the repair verification.

   NO 

   If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAF sensor/IAT sensor and the PCM. If the HDS indicates NOT COMPLETED, go to step 6-2 and recheck.

7. Repair verification (OBD STATUS check):1.

   Press the engine start/stop button to select the ON mode.

   - 2. Reset the PCM with the HDS - Refer to: How to Troubleshoot the Fuel and Emissions Systems (2013-15), or How to Troubleshoot the A/T System (2013-15) .

   Reset PCM

   - 3. Do the PCM idle learn procedure .

   - 4. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:

   • ENGINE SPEED
   • VEHICLE SPEED
   • MAP SENSOR
   • TP SENSOR

   Signal	Current conditions
   Values	Unit
   ENGINE SPEED
   VEHICLE SPEED
   MAP SENSOR
   TP SENSOR

   - 5. Monitor the OBD STATUS for DTC P0101 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P0101 MAF Sensor Circuit Range/Performance Problem

   DTC (PGM-FI)

   Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?

   PASSED

   Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated, go to the indicated DTC's troubleshooting.

   FAILED

   Go to step 1 and recheck.

   NOT COMPLETED

   Meet the test condition, and check the OBD STATUS again.