TCC Engagement Test
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2003 Mazda B4000, 2003 Mazda B3000, 2003 Mazda B2300, 2002 Mazda B4000, and 2002 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
Connect tachometer to engine. Ensure engine and transmission are at normal operating temperature. Drive vehicle at about 50 MPH in "D" position (overdrive on). After normal operating temperature has been reached, maintain a constant speed of about 50 MPH and tap brake pedal lightly. Engine RPM should increase when brake pedal is tapped (TCC disengages). Engine RPM should decrease in about 5 seconds (TCC engages). Slow to a stop. If TCC does not engage during road test or is engaged continuously (causing engine to stall at stops), see appropriate symptom in appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING .