1994 MAZDA MX-5 fuse

FUSE SPECIFICATIONS Main Fuse Block u I Fuse Amperes Protected circuit HEAD INJ MAIN BTN 30A 30A COOLING FAN (AD FAN) 1 ABS I 60A I Antilock brake svstem I Headlight relay, Headlight switch Alternator, Diagnostic module (for air bag system) 80A 40A ST SIG RETRACTOR Fuse Box No.1 Except circuits protected in main fuse block: INJ 30A, HEAD 30A, RETRACTOR 30A TNS relay, Headlight switch 30A 20A EGI main relay, Coolant fan relay A/C relay 10A 30A Park l Neutral switch, Circuit-opening relay Retractable headlight actuator Fuse ENGINE METER (POWER WIND) Amperes 15A WIPER TAIL ROOM I 10A I PCME, Key reminder switch, Audio unit I Protected circuit EGI main relay, Coolant fan relay 15A 30A STOP HAZARD CIGAR 15A I Cigarette lighter, Audio unit 1 Instrument cluster, Turn signal switch, Timer and buzzer unit, Cruise control main switch Power window switch 20A 15A Fuse Box No.2 Blower switch, Wiper switch Taillights, Side marker lights, License plate lights, Parking lights 15A 15A Fuse Amperes Protected circuit I Stoplight switch, Horn switch, Cruise control unit Flasher unit Fuse Color Code (DEFOG) (ANTENNA) I Fuse amperes I Color code Fuse type 25UOTX-013 20A 20A I I 10A Red 1 I Rear window defroster Power antenna Plate type 15A 20A Light blue Yellow 30A 30A 80A Light green Pink Black Cartridge type Gartner Banana

T FUSE DESCRIPTION Main Fuse Block The main fuse block is located on the right side of the engine compartment and contains nine fuses and two relays. -1 Fuse Box Fuse block No.1 is located above the dead pedal of the driver side. The fuse box cover shows the speci- fied fuse locations. A circuit breaker is included in the fuse box to protect the heater blower motor circuit. Fuse block No.2 is located to the side of the battery in the trunk compartment. 45UOTX-016 REPLACEMENT Caution Determine and correct the cause of a burnt fuse before replacing it. If the fuse is replaced before doing this, it may burn again. Plate type 1. Disconnect the negative battery cable. 2. Replace the failed fuse with the fuse puller. 3. Reconnect the negative battery cable. Cartridge-type 80A fuse (Black) 1. Disconnect the negative battery cable. 2. Remove the fuse block mounting nuts, and remove the service cover. 3. Remove the fuse installation bolts, and pull out the fuse. 4. Install the new fuse and the fuse installation bolts. 5. Install the main fuse block. 6. Reconnect the negative battery cable. Gartner Banana

T WARNING LIGHT AND SENDER UNIT TROUBLESHOOTING Check the METER 15A fuse in the fuse box before troubleshooting. If it is burnt, replace it after checking and repairing the wiring harness. i/ Brake System Warning Light I Symptom: Brake system warning light remains illuminated. 45UOTX-063 Step 1 - Check brake fluid level Check brake fluid level. Below MIN I I Check brake system (Refer to section P) I Brake fluid level Action Step 2 - Check parking brake switch 1. Disconnect the parking brake switch connector. 2. Check for continuity between the terminal of the switch and ground. Above MIN Go to Step 2 3. If not as specified, adjust or replace the parking brake switch. (Refer to section P.) 4. If the switch is OK, go to Step 3. I Step 3 - Check brake fluid level sensor I 1. Check for continuity of the sensor. *. 1' Lever Pulled one notch Released Continuity Yes No - I Above MIN No Brake fluid level Below MIN 2. If not as specified, replace the level sensor. 3. If the sensor is OK, repair the wiring harness. Continuity Yes Gartner Banana

T LIGHTING SYSTEM Description The headlight system consists of two halogen headlights mounted on retractable mechanisms, a head- light switch in the combination switch, and a retractor switch between the center ventilation outlets. When the headlight switch is rotated to the second position, the headlights are activated and the retract- able headlight actuator lift the headlights. If only the retractor switch is turned ON, the headlights will raise to the upright position, but all lights will be off. An emergency manual retractor knob is located on top of each retractable headlight actuator. 45UOTX-080 Troubleshooting A retractor indicator light is included in the instrument cluster. The indicator light illuminates when the re- tractable headlight actuator is operating and should go out when the headlights are fully raised or retracted. if the indicator light remains on, small objects, such as pebbles or pieces of ice, may lodged between the headlight and the vehicle body. Use the following procedure to correct this. Turn the ignition switch to OFF. Obtain the code number and deactivate the audio antitheft function. (Refer to page T-120.) Disconnect the negative battery cable or remove the RETRACTOR 30A fuse in the main fuse block. Raise or lower the headlight by turning the emergency retractor knob. Remove the obstruction. After verifying that the headlight switch and the retractor switch are off, reconnect the negative battery cable. Verify operation of the retractable headlight and the retractor indicator light. 45UOTX-095 --- Symptom: Headlights do not illuminate. HEAD 30A MAIN FUSE BLOCK Step 1 1. Check HEAD 30A fuse in the main fuse block. 2. If the fuse is burned, replace it. Check and repair the wir- ing harness, if necessary. 3. If the fuse is OK, go to Step 2. Gartner Banana

T LIGHTING SYSTEM I Symptom: Retractable headlight actuators do not operate (Both sides). I Activate the headlight switch and retractor switch and follow the approximate action. d Switch I Headlight switch ON / 'RECTOR Retractor rnotor(s) operate Retractor switch ON Step 1 1. Check RETRACTOR 30A and HEAD 30A fuses in the main fuse block. 2. If a fuse is burned, replace it. Check and repair the wire harness, if necessary. 3. If the fuses are OK, go to Step 2. Actlon Yes No Step 2 1. Disconnect the negative battery cable. 2. Retract the headlights fully by using the manual knobs. 3. Disconnect the retractable headlight actuator connec- tors. 4. Reconnect the negative battery cable. 5. Turn on the headlight switch and retractor switch. 6. Measure the voltage at the following terminal wires of the retractable headlight actuator connectors. Begin troubleshooting from Step 5 Next, turn ON retractor switch 45UOTX-087 Yes No B+: Batterv ~ositive voltage Begin troubleshooting from Step 4 Begin troubleshooting from Step 1 . . - Step 3 1. Disconnect the retractable headlight actuator connec- tors. 2. Check for continuity between the A terminal wire of the retractable headlight actuator connectors and ground. Retractable headlight actuator Left and Right I~ontinui~l headlight actuator Action Voltage (RN) Repair wiring harness (Retractable headlight actuator - GND) Left and Right Check retractable headlight actuator (Refer to oaon T-51) Action B+ Other Go to Step 3 Go to Step 4 Gartner Banana

:-2 .BACK-UP LIGHTS .HORN .STOPLIGHTS .HIGH-MOUNT STOPLIGHT MAIN FUSE BLOCK MAIN BUB TRAOE NUMBER ma-u~ LIGHTS: 11% (~WI Ix-oal OoA FUSE BLOCK \ ,, HIGH-HOUNT STOPLIGHT: 921 (l8.4W) STOP STRIGHTS: 1157 (27Wl PARK/NEUTRAL W/R (F) << IX-MI 15* FUSE BLOCK W/G IF) 0 F-O2k=zz& hORN RELAY F-03 G/O (F) STOR IGHT -5t SWITCH F-03 BACK-LP G/R LIGHT SWITCH OATA LINK PASSENGER-SIOE CONNECTOa (F) AIR BAG MOOWE (SECTION U! R/G (F) z:zzzz::zzzz:zz: G/R IF) F-0.551 HORN 0RIVE;I-SIOE AIR BAG MOOULE . E-19 E-20 A B B (R) (Rl A - VW REAR COnsINATION LIGHT F-05 HORN (F) F-06 PASSENGER-SIDE AIR BAG MXIULE(F) I U j-03 ORIVER-SIOE S-W PASSENGER-SIOE A:R BAG nrrmE (F) AIR BAG MX)UE (F) Gartner Banana

T LIGHTING SYSTEM Troubleshooting Symptom: Stoplights do not illuminate (All). 45UOTX-105 '' HIGH-MOUNT STOPLIGHT 05UOTX-12: Step 1 1. Check STOP 15A fuse in the fuse box. 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. ~easure the voltage at the following terminal wires of the stoplight switch connector. B+: Battery positive voltage Inspection 1 ~erm w I voltage 1 condition Action I B+ I Check B terminal I Repair wiring harness Other I (STOP 15A fuse - Storrliaht switch) I Brake pedal B+ I Go to Step 3 depressed Other 1 Check stoplight switch w -- 1. 6heck the stoplight bulbs. 2. If a bulb is burned, replace it. 3. If the bulbs are OK, go to Step 4. Step 4 Measure the voltage at the following terminal wires of the right and left rear combination light connectors. B+: Batterv ~ositive voltacle -. - '"spection I Terminal I Voltage 1 condition Action Brake pedal depressed B+ Other B+ Other Check F terminal Repair wiring harness (Stoplight switch - Rear combina- tion light) Repair wiring harness (Rear combination light - GND) Check for poor connection of con- nectors Gartner Banana

T LIGHTING SYSTEM Troubleshooting 1 Symptom: Turn and hazard warning function do not operate. I Step 1 Check HAZARD 15A fuse and METER 15A fuse in the fuse block. Step 2 Measure voltage at terminal H (B/R) of the flasher unit connector. Fuse Burnt OK Action Replace fuse after checking and repairing wiring harness Go to Step 2 Step 3 1. Disconnect the flasher unit connector. 2. Check for continuity between terminal A (B) of the flasher unit connector and ground. B+: Battery positive voltage -1 Voltage B+ Other Continuity Step 4 1. Turn the ignition switch ON. 2. Set the turn signal switch ON (right or left) and measure voltage at terminal C (G/Y) and terminal B (G/R) of the combination switch connector (&pin connector). Action Go to Step 3 Repair wiring harness (Hazard fuse - Flasher unit) Action Yes No B+: Battery positive voltage I Terminal I Wire IVoltaae 1 Action I Reconnect connector and go to Step 4 Repairing wiring harness (Flasher unit - GND) C - u (w) ,, .,. I (ti~nl - B+ Others B+ , Others I lnspect combination switch Go to Step 5-1 Inspect combination switch Go to Ster, 5-2 d Gartner Banana