DTC P0340 00: Intake CMP Sensor Circuit Problem: Notes

DTC P0340 00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

DTC P0340:00	Intake CMP sensor circuit problem
DETECTION CONDITION	The intake CMP sensor input signal pattern, received while the crankshaft rotates 24 times, is incorrect. 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 (Mode 2)/Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Set the electric variable valve timing control to the maximum cam retard mode.
POSSIBLE CAUSE	Intake CMP sensor connector or terminals malfunction Short to ground or open circuit in intake CMP sensor power supply circuit Short to ground in wiring harness between ENGINE1 15 A fuse and intake CMP sensor terminal C ENGINE1 15 A fuse malfunction Open circuit in wiring harness between main relay terminal D and intake CMP sensor terminal C Short to ground in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y PCM connector or terminals malfunction Short to power supply in wiring harness between intake CMP sensor terminal A and PCM terminal 1Y Intake CMP sensor signal circuit and ground circuit are shorted to each other Open circuit in wiring harness between the following terminals: Intake CMP sensor terminal A-PCM terminal 1Y Intake CMP sensor terminal B-PCM terminal 1 AC Intake CMP sensor malfunction Intake CMP sensor is dirty Intake CMP sensor pulse wheel malfunction Damage to the detection area of the intake CMP sensor CKP sensor connector or terminals malfunction Loose timing chain or improper valve timing PCM malfunction
Courtesy of MAZDA MOTORS CORP.