Test A: No Communication With Instrument Cluster
WARNING: This page is about a different car, the 2001 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch to OFF position. Disconnect instrument cluster 18-pin harness connector C220c. Figure . Turn ignition switch to RUN position. Measure voltage between ground and instrument cluster harness connector C220c, terminals No. 2 (Red/Yellow wire), No. 3 (Black/Pink wire) and No. 4 (Orange/Light Green wire). See Fig 1 . If all voltages are 10 volts or more, go to next step. If any voltage is less than 10 volts, repair open in appropriate wire.WIRING DIAGRAMS .
- Turn ignition switch to OFF position. Measure resistance between ground and instrument cluster harness connector C220c, terminal No. 1 (Black/White wire). Measure resistance between ground and instrument cluster harness connector C220c, terminal No. 5 (Black wire). If both resistances are less than 5 ohms, repair module communications concern. See MODULE COMMUNICATIONS NETWORK - TRIBUTE article . If either resistance is 5 ohms or more, repair open in Black/White wire or Black wire. See WIRING DIAGRAMS .