DTC Troubleshooting: P2073

DTC P2073: MAP Sensor Signal Higher Than Expected

NOTE:

	Before you troubleshoot, review the general troubleshooting information.
	Before you begin, check for poor connections or a blockage at the intake air duct.

DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
P2073 MAP Sensor Signal Higher Than Expected

Vacuum leak check:

Vacuum leak check

?1.

Check for vacuum leaks in these parts:

	PCV valve
	PCV hose
	EVAP canister purge valve
	Throttle body
	Intake manifold
	Brake booster
	Brake booster hose

Are there any vacuum leaks?


	YES

Repair or replace the parts with vacuum leaks.?


	NO

Go to step 2.

MAP sensor performance check:

MAP sensor performance check

?1.	Start the engine. Hold the engine speed at 3,000 rpm without load (CVT in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.

?2.

Check the parameter(s) below with the HDS for 5 seconds.

Signal	Threshold		Current conditions
Signal	Values	Unit	Values	Unit
MAP SENSOR	More than 48.4	kPa
MAP SENSOR	More than 363.0	mmHg

Did the value maintain the malfunction threshold for 5 seconds or more?


	YES

Replace the MAP sensor.?


	NO

Go to step 3.

Problem verification:

Problem verification

?1.	Clear the DTC with the HDS.

?2.

Test-drive under these conditions:

	Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
	Engine speed between 1,400?5,300 rpm
	CVT in D, M/T in 4th or 5th
	Drive at a steady speed between 55?75 mph (90?120 km/h) for 10 seconds, then decelerate (with the throttle fully closed) for 2 seconds or more

Signal	Current conditions
Signal	Values	Unit
ECT SENSOR 1
ENGINE SPEED
VEHICLE SPEED

?3.

Monitor the OBD STATUS for DTC P2073 in the DTCs MENU with the HDS.

DTC Description	OBD STATUS
P2073 MAP Sensor Signal Higher Than Expected

Does the HDS indicate FAILED?


	YES

The failure is duplicated. Replace the MAP 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 MAP sensor and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot. If the HDS indicates NOT COMPLETED, go to step 3-2 and recheck.?