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DTC P0107

DTC P0107  MAP sensor circuit low input 
DETECTION CONDITION 
  • The PCM monitors the input voltage from the MAP sensor. If the input voltage is below 0.1 V for 5s  , the PCM determines that the MAP sensor circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • MAP sensor connector or terminals malfunction
  • MAP sensor malfunction
  • Short to ground in wiring harness between MAP sensor terminal C and PCM terminal 2AU
  • PCM connector or terminals malfunction
  • Open circuit in wiring harness between MAP sensor terminal C and PCM terminal 2AU
  • MAP sensor signal circuit and ground circuit are shorted to each other
  • Short to ground in wiring harness between MAP sensor terminal D and PCM terminal 2AG
  • PCM malfunction
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DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 12) HAS BEEN RECORDED 
  • Has the FREEZE FRAME DATA (Mode 12) been recorded?
 Yes Go to the next step.
No Record the FREEZE FRAME DATA (Mode 12) on the repair order, then go to the next step.
2 VERIFY RELATED SERVICE BULLETINS AVAILABILITY 
  • Verify related Service Bulletins availability.
  • Is any related Service Bulletins available?
 Yes Perform the repair or diagnosis according to the available Service Bulletins.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 VERIFY MAP PID WHEN MAP SENSOR CONNECTOR IS DISCONNECTED 
  • Connect the M-MDS to the DLC-2.
  • Access the MAP PID.
  • Disconnect the MAP sensor connector.
  • Is the voltage above 4.9 V?
 Yes Go to the next step.
No Go to Step 9.
4 INSPECT POWER SUPPLY CIRCUIT VOLTAGE AT MAP SENSOR CONNECTOR 
  • Turn the ignition switch to the ON position (Engine off).
  • Measure the voltage between MAP sensor terminal C (wiring harness-side) and body ground.
  • Is the voltage within 4.5-5.5 V?
 Yes Go to the next step.
No Go to Step 6.
5 INSPECT MAP SENSOR CONNECTOR AND TERMINALS 
  • Turn the ignition switch off.
  • Disconnect the MAP sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector or terminals, then go to Step 13.
No Replace the MAP sensor, then go to Step 13.
(See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION ).
6 INSPECT MAP SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND 
  • MAP sensor connector is disconnected.
  • Inspect for continuity between MAP sensor terminal C (wiring harness-side) and body ground.
  • Is there continuity?
 Yes If the short to ground circuit could be detected:
  • Repair or replace the wiring harness for a possible short to ground.

If the short to ground circuit could not be detected:

Go to Step 13.
No Go to the next step.
7 INSPECT PCM CONNECTOR AND TERMINALS 
  • Disconnect the PCM connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector or terminals, then go to Step 13.
No Go to the next step.
8 INSPECT MAP SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT 
  • MAP sensor and PCM connectors are disconnected.
  • Inspect for continuity between MAP sensor terminal C (wiring harness-side) and PCM terminal 2AU (wiring harness-side).
  • Is there continuity?
 Yes Go to Step 13.
No Repair or replace the wiring harness for a possible open circuit, then go to Step 13.
9 INSPECT MAP SENSOR CONNECTOR AND TERMINALS 
  • Turn the ignition switch off.
  • Disconnect the MAP sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector or terminals, then go to Step 13.
No Go to the next step.
10 INSPECT PCM CONNECTOR AND TERMINALS 
  • Disconnect the PCM connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector or terminals, then go to Step 13.
No Go to the next step.
11 INSPECT MAP SENSOR SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER 
  • MAP sensor and PCM connectors are disconnected.
  • Inspect for continuity between MAP sensor terminals D and A (wiring harness-side).
  • Is there continuity?
 Yes Repair or replace the suspected wiring harness, then go to Step 13.
No Go to the next step.
12 INSPECT MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND 
  • MAP sensor and PCM connectors are disconnected.
  • Inspect for continuity between MAP sensor terminal D (wiring harness-side) and body ground.
  • Is there continuity?
 Yes Repair or replace the wiring harness for a possible short to ground, then go to the next step.
No Go to the next step.
13 VERIFY TROUBLESHOOTING OF DTC P0107 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Turn the ignition switch to the ON position (Engine off).
  • Clear the DTC from the memory using the M-MDS.
  • Perform the KOEO or KOER self test.
  • Is the same DTC present?
 Yes Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION ).
No Go to the next step.
14 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE ).
No DTC troubleshooting completed.
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