DTC P0107 [LF, L3]

id0102008034a3

DTC P0107

MAP sensor circuit low input

DETECTION CONDITION

• The PCM monitors the input voltage from the MAP sensor when intake air temperature is above 10 °C {50 °F}. If the input voltage at the PCM terminal 1J is below 0.1V, 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 the first drive cycle.
• The PENDING CODE is available if the PCM detects the above malfunction condition.
• The FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• MAP sensor malfunction
• Connector or terminal malfunction
• Short to ground in the wiring between MAP sensor terminal D and PCM terminal 1J
• Open circuit in the wiring between MAP sensor terminal C and PCM terminal 2K
• MAP sensor signal circuit and MAP sensor ground circuit are shorted to each other
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
PERFORM DTC CONFIRMATION PROCEDURE
• Perform the DTC CONFIRMATION PROCEDURE.
• Is the same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists. Go to the INTERMITTENT CONCERN TROUBLESHOOTING procedure.
2
VERIFY MAP PID WHEN MAP SENSOR CONNECTOR IS DISCONNECTED
• Disconnect the MAP sensor connector.
• Is the voltage above 4.9 V?
Yes
Go to the next step.
No
Go to step 4.
3
INSPECT POWER SUPPLY CIRCUIT VOLTAGE AT MAP SENSOR CONNECTOR
Note
• If the DTC P0122 is also retrieved with P0107, go to the CONSTANT VOLTAGE troubleshooting procedure.
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between MAP sensor terminal C (harness-side) and body ground.
• Is the voltage within 4.5- 5.5 V?
Yes
Inspect for poor connection of the MAP sensor terminal C (harness-side).
• Repair or replace the terminal if necessary.
• If normal, replace the MAP sensor.
then go to Step 6.
No
Check for an open circuit between PCM terminal 2K (harness-side) and MAP sensor terminal C (harness-side).
Repair or replace the suspected wiring harness, then go to Step 6.
4
INSPECT MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
• Turn the ignition switch to the OFF position.
• Disconnect the PCM connector.
• Inspect for continuity between MAP sensor terminal D (harness-side) and body ground.
• Is there continuity?
Yes
Repair or replace the suspected wiring harness, then go to Step 6.
No
Go to the next step.
5
INSPECT MAP SENSOR SIGNAL AND GROUND CIRCUIT FOR SHORT TO EACH OTHER
• Check for continuity between MAP sensor terminals D and A (harness-side).
• Is there continuity?
Yes
Repair or replace the suspected wiring harness, then go to the next step.
No
Go to the next step.
6
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 WDS or equivalent.
• Perform the KOEO/KOER self-test.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
• Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.