No Engine Braking In "2" Or "L"
WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Possible cause: low line pressure, VSS malfunction, input/turbine speed sensor faulty, shift solenoid "C" sticking, internal clutch slippage, valve body sticking, poor electrical ground, HOLD system malfunction and/or PCM malfunction.