On-Vehicle Inspection

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7] .)
Remove the TCM. (See TCM REMOVAL/INSTALLATION [AW6A-EL] .)
Verify that there is no continuity between coupler component terminals B7 and GND, or B8 and GND

Fig 1: Identifying Coupler Component
Courtesy of MAZDA MOTORS CORP.
- If there is continuity, perform an off-vehicle inspection of TFT sensor. (See OFF-VEHICLE INSPECTION .)
Fig 2: Identifying Coupler Component Terminals
Courtesy of MAZDA MOTORS CORP.