DTC P0107[LF ATX (FN4A-EL), L3 ATX]

id0102b6803400

DTC P0107

MAP sensor circuit low input
DETECTION CONDITION
•  The PCM monitors the input voltage from the MAP sensor when the intake air temperature is above -10 °C {14 °F}. If the input voltage is below 0.1V, the PCM determines that the MAP sensor circuit has a malfunction.
MONITORING CONDITIONS
―  Calculated load: 13—32 %
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.
•  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 wiring harness between MAP sensor terminal D and PCM terminal 2AL
•  Open circuit in the wiring harness between MAP sensor terminal C and PCM terminal 2AR
•  MAP sensor signal circuit and MAP sensor ground circuit are shorted each other
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  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 DLC-2.
•  Access MAP PID.
•  Disconnect the MAP sensor connector.
•  Is the voltage above 4.9 V?
Yes
Go to the next step.
No
Go to Step 5.
4
INSPECT POWER SUPPLY CIRCUIT VOLTAGE AT MAP SENSOR CONNECTOR
Note
•  If DTC P0122 are also retrieved with P0107, go to CONSTANT VOLTAGE troubleshooting procedure.
•  Turn the ignition switch to the ON position (Engine off).
•  Measure the voltage between MAP sensor terminal C and body ground.
•  Is the voltage within 4.5—5.5 V?
Yes
Inspect for poor connection at MAP sensor terminal C.
•  Repair or replace the terminal if necessary.
•  If there is no malfunction, replace the MAP sensor.
Then go to Step 7.
No
Inspect for open circuit in wiring harness between PCM terminal 2AR and MAP sensor terminal C.
Repair or replace suspected wiring harness, then go to Step 7.
5
INSPECT MAP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
•  Turn the ignition switch off.
•  Disconnect the PCM connector.
•  Inspect for continuity between MAP sensor terminal D and body ground.
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to Step 7.
No
Go to the next step.
6
INSPECT MAP SENSOR SIGNAL AND GROUND CIRCUIT FOR SHORT EACH OTHER
•  Inspect for continuity between MAP sensor terminals D and A.
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to the next step.
No
Go to the next step.
7
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.
•  Start the engine.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION[LF, L3].)
No
Go to the next step.
8
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
(See DTC TABLE[LF ATX (FN4A-EL), L3 ATX].)
No
Troubleshooting completed.