Preliminary Checks

Before trouble shooting by symptom, ensure fuses No. 23 (7.5 amp) and No. 24 (15 amp) located in underdash fuse box are okay. Also check fuses No. 30 (70 amp for 1991, 80 amp for 1992), No. 32 (50 amp) and No. 37 (20 amp), located in underhood main fuse box. Repair or replace fuses as necessary. Ensure horn and tachometer operate properly. Repair horn or tachometer as necessary.