With Coolant Control Valve

DTC P0108:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0108:00	MAP sensor circuit high input
DETECTION CONDITION	The PCM monitors the input voltage from the MAP sensor. If the input voltage at the PCM terminal 1X is above 4.77 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 MAP sensor malfunction Short to power supply in wiring harness between MAP sensor/IAT sensor No. 2 terminal D and PCM terminal 1X Open circuit in wiring harness between the following terminals: MAP sensor/IAT sensor No. 2 terminal C-PCM terminal 1J MAP sensor/IAT sensor No. 2 terminal D-PCM terminal 1X MAP sensor/IAT sensor No. 2 terminal A-PCM terminal 1BH PCM malfunction
Courtesy of MAZDA MOTORS CORP.

CAUTION:

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