DTC P1380-00; Electric Variable Valve Timing Control Circuit Problem: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

DTC P1380:00	Electric variable valve timing control circuit problem
DETECTION CONDITION	A malfunction is detected in the results of the on-board diagnostic test received from the electric variable valve timing driver. Diagnostic support note This is a continuous monitor (CCM). The check engine light does not illuminate. FREEZE FRAME DATA (Mode 2) is not available. Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Stops activation of the electric variable valve timing driver.
POSSIBLE CAUSE	Electric variable valve timing motor/driver connectors or terminals malfunction Short to ground in wiring harness between electric variable valve timing motor/driver terminal 1A and PCM terminal 1AE PCM connector or terminals malfunction Short to power supply in wiring harness between electric variable valve timing motor/driver terminal 1A and PCM terminal 1AE Open circuit in wiring harness between electric variable valve timing motor/driver terminal 1A and PCM terminal 1AE Electric variable valve timing driver malfunction Electric variable valve timing motor malfunction PCM malfunction

CAUTION:

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

PID DESCRIPTION

Item (definition)	Unit/Condition	Definition	Condition/Specification (Reference)
VT IN_ACT	°	Actual intake valve timing	Displays actual intake valve timing
VT IN_DES	°	Desired intake valve timing	Displays desired intake valve timing