Pinpoint Test 2: Insufficient, Erratic, Or No Heat
WARNING: This page is about a different car, the 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pinpoint Test 2: Insufficient, Erratic, Or No Heat (Steps 1-3)
Courtesy of MAZDA MOTORS CORP.
Fig 2: Pinpoint Test 2: Insufficient, Erratic, Or No Heat (Step 4)