Speedometer Circuit Test
WARNING: This page is about a different car, the 1994 Chrysler LeBaron. However, it is still accessible from the selected car via links, so may be relevant.
- Using DRB, check distance sensor (speed sensor) for fault code and proper speed indication. see TESTS W/CODES - 3.0L article in ENGINE PERFORMANCE section. To check wiring circuit, remove instrument cluster from panel just enough to access speedometer connector on rear of cluster. Leave cluster harness connectors connected. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION.
- Turn ignition on. Using voltmeter, check for battery voltage across cluster speedometer ignition (center pin) and ground (bottom pins). See Fig 1 . Using ohmmeter, check for continuity between cluster distance sensor input pin and connector terminal of distance sensor (mounted to transaxle). Check for continuity of speedometer ground. See Fig 1 . If battery voltage and continuity exist, replace speedometer. If voltage and/or continuity do not exist, repair wiring as necessary.