1994 MAZDA MX-5 Workshop Manual

T HORN HORN STRUCTURAL VIEW 1. Horn T-84 2. Horn relay 3. Horn switch Gartner Banana

1 mw GRIVER-SIDE AIR BAG MOOULE :-2 SWITCH [a-. .BACK-UP LIGHTS .HORN .STOPLIGHTS .HIGH-MOUNT STOPLIGHT 1 REAR COHeINATION LIGHT '-05 HORN (F) S-03 DRIVEA-SIDE AIR BAG mlDlhE (F) :-06 PASSENGER-SIDE AIR BAG WDULE (F) j-04 PASSENGER-SIDE AIR BAG WOULE (F) Gartner Banana

T HORN Symptom: Horn does not sound. 05UOTX-191 Step 1 1. Check the STOP 15A fuse. 2. If the fuse is burned, replace it. Check and repair the wire harness, if necessary. 3. If the fuse is OK, go to Step 2. Step 2 1. Disconnect the horn connector. 2. Apply battery positive voltage to the horn, and check if the horn sounds. 3. If the horn sounds, go to Step 3. 4. If the horn does not sound, replace the horn. Step 3 1. Remove the knee protector. 2. Ground the terminal B (GIO) of the horn relay connector. 3. If the horn sounds, go to Step 4. 4. If the horn does not sound, go to Step 6. Step 4 1. Disconnect the negative battery cable. 2. Remove the air bag module. (Refer to page T-204.) 3. Check for continuity between the terminal of the horn switch connector and the steering shaft. I OFF I No I Horn switch ON 4. If correct, go to Step 5. 5. If not as specified, replace the horn switch and steering wheel as an assembly. Verify that the air bag system is operating normally by monitoring the air bag warning light. Continuity Yes Gartner Banana

HORN T Step 6 1. Ground the terminal B (GIO) of the horn relay connector. 2. Measure the voltage at the following terminal wires of the horn relay connector. Step 5 1. Remove the knee protector. 2. Disconnect the clock spring connector. 3. Check for continuity of the clock spring connector as shown in the figure. B+: Batterv ~ositive voltaae Continuity Yes No A (WIG) Actlon Repair wiring harness (Horn relay - Clock spring connector) Replace combination switch D (WIG) Voltage B+ Repair wiring harness Other I (STOP l5A fuse - Horn relay) Action Check D terminal Other B+ Repair wiring harness (STOP 15A fuse - Horn relay) Check C terminal REMOVAL I INSTALLATION Horn Remove and install as shown in the figure. Horn Switch 1. Disconnect the negative battery cable. u C (GIR) '+ Other Repair wiring harness (Horn relay - Horn) Replace horn relay Gartner Banana

T HORN TURN CLOCKWISE T RETURN 2.75 TURNS +I 2. Remove the air bag module and then remove the steer- ing wheel assembly. d 3. Before installation of the steering wheel reset the clock spring connector as follows: (1) Set the front wheels straight ahead. (2) Turn the clock spring connector clockwise until it stops. (3) Return 2.75 turns. (4) Align the marks (counterclockwise) on the clock spring connector and the outer housing. 4. Install the steering wheel and the air bag module. Verify that the air bag system is operating normally by monitor- ing the air bag warning light. Gartner Banana

REAR WINDOW DEFROSTER REAR WINDOW DEFROSTER STRUCTURAL VIEW 1. Rear window defroster L/ 2. Rear window defroster switch 3. Rear window defroster relay 4. Rear window defroster timer unit DESCRIPTION The rear window defroster switch is included in the heater control switch assembly. Gartner Banana

FUSE BCOCK IX-031 I 1,05);;;! rAR WINOOW OEFROSTER 1-05 --: RELAY FUSE BLOCK 1-2 .CIGARETTE LIGHTER .INTERIOR LIGHT .REAR WINDOW DEFROSTER MAIN FUSE BLOCK FUSE BLOCK W/R (F) -- ;; ROOM L/R (FI IX-04 'OA &g [x-ZZI 1 - eh FUSE CONTROL MOOUCE (EWGINEI (SECTION 8- tc) INSTRVMENT CLUSTER (SECTION C-a) t OOW SWITCHES (SECTION T) INTERIOR LIGHT OFF. ON !;. (I1 OB CIGARETTE L .IGHTER (I) 1-09 INTERIOR LIGHT (11 I I Z-10 REAR WINOOW DEFROSTER SWITCH (I) I Gartner Banana

REAR WINDOW DEFROSTER T u Symptom: Rear window defroster does not operate. 9MUOTX-232 Step 1 1. Check the following fuses. I Fuse Amperage I Location I 2. If all the fuses are OK, go to Step 2. 3. If a fuse is burned out, replace it. Check and repair the wire harness, if necessary. R.DEF HEATER -- M: Continuity 20A 30A Step 2 1. Disconnect the rear window defroster relay. 2. Apply battery positive voltage and check for continuity between terminals of the relay. B+: Battery positive voltage 3. If correct install the rear window defroster relay and go to Step 3. 4. If not as specified, replace the rear window defroster relay. Fuse box No.2 Main fuse block Step 1 2 C Terminal D 0 GND B 0 B+ A 0 C 0 Gartner Banana