DTC Troubleshooting: P2074
DTC P2074: MAP Sensor Signal Lower Than Expected
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P2074 MAP Sensor Signal Lower Than Expected
    

1.
MAP sensor performance check 1:

MAP sensor performance check 1
?1.
Turn the vehicle to the ON mode.

?2.
Compare the value of the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    
TC Boost Pressure
    

Does the value differ more than 26.7 kPa (7.9 inHg, 200 mmHg)?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
MAP sensor performance check 2:

MAP sensor performance check 2
?1.
Note the value of MAP Sensor in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    

?2.
Start the engine and let it idle.

?3.
Check the MAP Sensor in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    

Does the MAP Sensor change 0.67 kPa (0.2 inHg, 5 mmHg) or more?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
Problem verification:

Problem verification
?1.
Clear the DTC with the HDS.


?2.
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.

?3.
Test-drive the vehicle under these conditions:
Engine speed at 1,700 rpm or more
CVT in D, M/T in 4th or 5th
REL TP SENSOR above 42.2 deg
Drive 5 seconds or more

Signal
Current conditions
Values
Unit
ENGINE SPEED
    
REL TP Sensor
    

?4.
Monitor the OBD STATUS for DTC P2074 in the DTCs MENU with the HDS.
DTC Description
OBD STATUS
P2074 MAP Sensor Signal Lower 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 on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot. If the HDS indicates NOT COMPLETED, go to step 3-2 and recheck.?