DTC P1627 - Engine Control Module (ECM)/Traction Control System (TCS) Line Communication Error: Condition
WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when no pulse signal is input to ECM at 4 MPH or greater. Possible causes are:
- ABS/TCS control module malfunction.
- Open or short circuit between terminal No. 1Q on ECM and terminal No. 2S on ABS/TCS control module.