DTC P0107-00: MAP Sensor Circuit Low Input: Notes

DTC DETECTION DESCRIPTION

DTC P0107:00	MAP sensor circuit low input
DETECTION CONDITION	The PCM monitors the input voltage from the MAP sensor. If the input voltage at the PCM terminal 1BW is below 0.28 V for 5 s, the PCM determines that the MAP sensor circuit has a malfunction. Diagnostic support note This is a continuous monitor (CCM). The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA/Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Estimates MAP using MAF sensor and engine speed. Restricts the upper limit of the engine speed. Inhibits the evaporative purge control.
POSSIBLE CAUSE	MAP sensor/IAT sensor No. 2 connector or terminals malfunction PCM connector or terminals malfunction Short to ground in wiring harness between the following terminals: MAP sensor/IAT sensor No. 2 terminal C-PCM terminal 1BO MAP sensor/IAT sensor No. 2 terminal D-PCM terminal 1BW MAP sensor signal circuit and ground circuit are shorted to each other MAP sensor malfunction PCM malfunction

Fig 1: MAP Sensor Circuit Diagram

Courtesy of MAZDA MOTORS CORP.

CAUTION:

• Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.

PARTS DESCRIPTION

Item	Definition	Unit	Condition/Specification
MAP	Manifold absolute pressure input from MAP sensor	KPa {MPA}, mBar {BAR}, psi, in H20	Displays MAP
MAP_V	MAP sensor voltage	V	Ignition switched ON (engine off) (MAP:100 kPa {1.02 kgf/cm2 , 14.5 psi}): Approx. 4.04 V Idle (after warm up) (MAP: 35 kPa {0.36 kgf/cm2 , 5.1 psi}): Approx. 1.40 V Racing (engine speed is 2, 000 rpm) (MAP: 26 kPa {0.27 kgf/cm2 , 3.8 psi}): Approx. 1.01 V