Ground Circuits
- Turn ignition off. Locate Powertrain Control Module (PCM). See POWERTRAIN CONTROL MODULE LOCATION
table. Using a DVOM, check continuity between ground and PCM connector pins. See IDENTIFYING PCM GROUND PINS
table. See Figure
. If continuity does not exist, repair open ground circuit as necessary. If continuity exists, go to next step.POWERTRAIN CONTROL MODULE LOCATION
Application Location All Models Center Of Engine Compartment, Mounted On Cowl IDENTIFYING PCM GROUND PINSApplication PCM Ground Pin No. Except Tribute 24, 25, 51, 76, 77 & 103 Tribute 2.0L 23, 24, 25, 33, 51, 76, 77 &103 3.0L 3, 24, 25, 51, 76 &103 - Touch DVOM negative lead to a good ground. With vehicle running, backprobe DVOM positive lead to each ground terminal. DVOM should indicate less than one volt. If reading is greater than one volt, check for open, corrosion or loose connection on ground circuit.