DTC P006A

DTC P006A  : Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem

DTC (PGM-FI)

1. Parts condition check

   -1. Check for poor connections or damage to these parts:

   • PCV valve
   • 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).

2. Intake air duct visual check

   -1. Check for damage or looseness of the intake air duct from the throttle body to the air cleaner.

   Is it OK?

   YES 

   Go to step 3.

   NO 

   Reconnect or replace the intake air duct from the throttle body to the air cleaner.

3. Air cleaner element visual check

   -1. Check the air cleaner element for dirt and the air cleaner element gasket for damage or deformity.

   Is it dirty, damaged or deformity?

   YES 

   Replace the air cleaner element .

   NO 

   Go to step 4.

4. MAF sensor signal check (without engine running)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Turn the vehicle to 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 .

5. MAF sensor signal check (with engine running)

   -1. 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 .

6. MAF sensor check

   -1. 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 on-board snapshot parameters:

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

   On-board Snapshot

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

   - 3. Monitor the OBD STATUS for DTC P006A with the HDS.

   DTC Description	OBD STATUS
   P006A MAF Sensor Circuit Range/Performance Problem

   Does the HDS indicate FAILED?

   YES 

   Replace the MAF sensor/IAT sensor .

   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 on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot. - Refer to: How to Troubleshoot the Fuel and Emissions Systems . If the HDS indicates NOT COMPLETED, go to step 6-2 and recheck.