DTC Troubleshooting: P0107
DTC P0107: MAP Sensor Circuit Low Voltage
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0107 MAP Sensor Circuit Low Voltage
     

1.
Problem verification:

Problem verification
?1.
Press the engine start/stop button to select the ON mode.

?2.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
MAP SENSOR
Less than 0.23
V
    

Do the current condition(s) match the threshold?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and the PCM.?
2.
Determine possible failure area (PB line, others):

Determine possible failure area (PB line, others)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Press the engine start/stop button to select the ON mode.

?4.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
MAP SENSOR
Less than 0.23
V
    

Do the current condition(s) match the threshold?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 3.
3.
Determine possible failure area (MAP sensor, others):

Determine possible failure area (MAP sensor, others)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
 
MAP sensor 3P connector: disconnected
Test circuit
VCC1, SG1
Test point 1
MAP sensor 3P connector No. 1 (BLU)
Test point 2
MAP sensor 3P connector No. 3 (PNK)


Is there about 5.0 V?

     
YES
     
     
     
     
NO
     
     
     
Go to step 4.
4.
Open wire check (VCC1 line):

Open wire check (VCC1 line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Jump the SCS line with the HDS.


?3.
Disconnect the following connector.

?4.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
MAP sensor 3P connector: disconnected
 
PCM connector C (51P): disconnected
Test circuit
VCC1
Test point 1
MAP sensor 3P connector No. 3 (PNK)
Test point 2
PCM connector C (51P) No. 32 (PNK)


Is there continuity?

     
YES
     
     
     
The VCC1 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then do the repair verification.
     
NO
     
     
     
Repair an open in the VCC1 wire between the PCM (C32) and the MAP sensor, then do the repair verification.
5.
Shorted wire check (PB line):

Shorted wire check (PB line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Jump the SCS line with the HDS.


?3.
Disconnect the following connector.

?4.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
MAP sensor 3P connector: disconnected
 
PCM connector C (51P): disconnected
Test circuit
PB
Test point 1
MAP sensor 3P connector No. 2 (PUR)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short in the PB wire between the PCM (C45) and the MAP sensor, then do the repair verification.
     
NO
     
     
     
The PB wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then do the repair verification.
Repair verification:

?1.
Press the engine start/stop button to select the OFF mode.

?2.
Reconnect all connectors.

?3.
Exit the SCS mode with the HDS.


?4.
Press the engine start/stop button to select the ON mode.

?5.
Reset the PCM with the HDS.


?6.
Do the PCM idle learn procedure.

?7.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0107 MAP Sensor Circuit Low Voltage
     


Is DTC P0107 indicated?

     
YES
     
     
     
Check for poor connections or loose terminals at the MAP sensor and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.
     
NO
     
     
     
Troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.?