1994 MAZDA MX-5 sensor

P ANTILOCK BRAKE SYSTEM (ABS) -.A 1. Sensor rotor 3. Drive shaft ................... ................. Installation Note below Installation section M 2. Boot and boot band ................... Installation section M lnstallation note ABS sensor rotor Set a new sensor rotor on the drive shaft and press it on with the SST. Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) FRONT SUSPENSION (DOUBLE-WISHBONE) PREPARATION SST 49 0727 575 Puller, socket oint Attachment, steering worm bearing preload measuring 49 GO34 1 A0 Compressor, coil spring Screw (Part of - 49 GO34 1 AO) - Wrench, flare nut For removal of lower arm ball joint For 1 49 GO34 101 49 01 18 850C Puller, ball joint For inspection of upper arm ball joint 49 H028 301 Installer, dust boot For 1 49 GO34 103 removal and installation of coil spring Body (Part of 49 GO34 1 AO) For removal and installation of brake pipe removal and installation of coil spring SHOCK ABSORBER AND SPRING Removal / Installation 1. Jack up the front of the vehicle and support it with safety stands. 2. Remove the undercover. 3. Remove the band for the wheel speed sensor harnes. 4. Remove in the order shown in the figure, referring to Removal Note. Arm (Part of 49 GO34 I AO) 5. Inspect all parts and repair or replace as necessary. 6. Install in the reverse order of removal. For removal of upper arm ball joint For installation of front lower arm boot For removal and installation of coil spring For removal and installation of coil spring 7. Loosely tighten the shock absorber, upper arm, stabilizer control link, and stabilizer bracket bolts. Tighten all other nuts and bolts to the specified torques. 8. Install the band for the wheel speed sensor. 9. Lower the vehicle. 10. With the vehicle unloaded, tighten the upper arm and shock absorber bolts to the specified torques. - 11. Adjust the front wheel alignment. (Refer to page R-6.) 25UORX406 Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) R UPPER ARM Removal I Inspection I Installation 1. Jack up the front of the vehicle and support it with safety stands. L/ 2. Remove the undercover. 3. Remove the band for the wheel speed sensor harness. 4. Remove in the order shown in the figure, referring to Removal Note. 5. lnspect all parts and repair or replace as necessary. 6. Install in the reverse order of removal, referring to Installation Note. 7. Loosely tighten the upper arm and shock absorber bolts. Tighten all other nuts and bolts to the specified torques. 8. Install the band for the wheel speed sensor harnes. 9. Lower the vehicle. 10. With the vehicle unloaded, tighten the upper arm and shock absorber bolts to the specified torques. 11. Adjust the front wheel alignment. (Refer to page R-6.) 25UORX-01 1. Wheel and tire 5, Ball ioint dust boot Upper arm ball joint demoval ~ote ............. page R-18 Removal Note ............. page R-18 Installation Note ........... page R-18 Shock absorber bolt 6. Upper arm bushing (front and rear) 4. Upper arm Inspect for deterioration and damage Inspect for damage and cracks Gartner Banana

BODY ELECTRICAL SYSTEM ................................... INDEX T- 2 ........................... SWITCHES T- 2 FUSES AND RELAYS .................. T- 3 .............................. LIGHTS T- 4 CRUISE CONTROL SYSTEM ........... T- 5 ...................... AUDIO SYSTEM T- 6 SRS AIR BAG SYSTEM ................ T- 7 ............................... OUTLINE T- 8 TROUBLESHOOTING GUIDE ........... T- 8 ELECTRICAL SYMBOLS ............... T- 9 ................................... FUSE T- 10 STRUCTURAL VIEW ................... T- 10 ...................... SPECIFICATIONS T- 11 ........................ DESCRIPTION T- 12 ....................... REPLACEMENT T- 12 ....................... RELAY .. ....... T- 13 STRUCTURAL VIEW ................... T- 13 ........................ DESCRIPTION T- 13 RETRACTABLE HEADLIGHT RELAY .... T- 14 ....................... FLASHER UNIT T- 14 ........................... TNS RELAY T- 15 .......................... HORN RELAY T- 15 COOLANT FAN RELAY ................. T- 15 REAR WINDOW DEFROSTER RELAY ... T- 16 HEADLIGHT RELAY ................... T- 16 ................................ SWITCH T- 17 ................... STRUCTURAL VIEW T- 17 ........................ DESCRIPTION T- 17 .................... IGNITION SWITCH T- 18 COMBINATION SWITCH ............... T- 19 RETRACTOR SWITCH AND HAZARD WARNING ............................. SWITCH T- 21 ................. INSTRUMENT CLUSTER T- 22 ................... STRUCTURAL VIEW T- 22 ........................ DESCRIPTION T- 22 .................... CIRCUIT DIAGRAM T- 23 ................. TROUBLESHOOTING T- 24 ............ REMOVAL / INSTALLATION T- 29 ........... DISASSEMBLY 1 ASSEMBLY T- 29 ...................... SPEEDOMETER T- 30 ........................ TACHOMETER T- 30 WATER TEMPERATURE GAUGE ....... T- 30 ......................... FUEL GAUGE T- 31 OIL PRESSURE GAUGE ............... T- 31 .................... PRINTED CIRCUIT T- 32 VEHICLE SPEED SENSOR ............. T- 32 WATER TEMPERATURE SENDER UNlT . T- 32 FUEL GAUGE SENDER UNlT ...................... (IN FUEL TANK) T- 32 OIL PRESSURE SENSOR .............. T- 33 ............... SPEEDOMETER CABLE T- 33 WARNING LIGHT AND SENDER UNIT ..... T- 34 ................... STRUCTURAL VIEW T- 34 CIRCUIT DIAGRAM .................... T- 35 ................. TROUBLESHOOTING T- 36 BRAKE FLUID LEVEL SENSOR ......... T- 39 PARKING BRAKE SWITCH ............. T- 39 ..................... BUCKLE SWITCH T- 39 ...................... LIGHTING SYSTEM T- 40 ................... STRUCTURAL VIEW T- 40 ......................... HEADLIGHTS T- 41 ......................... STOPLIGHTS T- 53 TURN AND HAZARD WARNING LIGHTS . T- 57 ..................... BACK-UP LIGHTS T- 66 TAILLIGHTS. SIDE MARKER LIGHTS. PARKING LIGHTS AND LICENSE PLATE LIGHTS . T- 69 DAYTIME RUNNING LIGHTS (DRL) .................... (CANADA SPEC.) T- 72 ........... REAR COMBINATION LIGHT T- 76 .................... INTERIOR LIGHTS T- 78 ................ ILLUMINATION LIGHTS T- 82 .................................. HORN T- 84 ................... STRUCTURAL VIEW T- 84 .................... CIRCUIT DIAGRAM T- 85 ................. TROUBLESHOOTING T- 86 ............ REMOVAL 1 INSTALLATION T- 87 ............ REAR WINDOW DEFROSTER T- 89 ................... STRUCTURAL VIEW T- 89 ........................ DESCRIPTION T- 89 ................. TROUBLESHOOTING T- 90 ................ REPAIRING FILAMENT T- 93 ............. CRUISE CONTROL SYSTEM T- 94 ................... STRUCTURAL VIEW T- 94 .................... CIRCUIT DIAGRAM T- 95 ................. TROUBLESHOOTING T- 96 ....... SELF-DIAGNOSTIC INSPECTION T-100 ............... CRUISE CONTROL UNIT T-103 .................... ACTUATOR CABLE T-104 ..................... CLUTCH SWITCH T-105 .......... STOP LIGHTIBRAKE SWITCH T-105 ...... CRUISE CONTROL MAIN SWITCH T-106 ........... CRUISE CONTROL SWITCH T-106 ............. VEHICLE SPEED SENSOR T-106 ........................... ACTUATOR T-107 a .................................. AUDIO T-108 ................... STRUCTURAL VIEW T-108 ................... SYSTEM DIAGRAM T-109 ............................ FEATURES T-110 FUNCTION AND OPERATING ......................... PROCEDURE 1-111 ............. OPERATION DESCRIPTION T-113 .................. ANTITHEFT SYSTEM T-120 ................. TROUBLESHOOTING T-122 ............ REMOVAL I INSTALLATION T-145 .................... POWER ANTENNA T-149 ......................... INSPECTION T-153 CONNECTOR TERMINAL .................... SPECIFICATIONS T-154 SRS AIR BAG SYSTEM .................. T-156 PREPARATION ........................ T-156 ................... STRUCTURAL VIEW T-156 .......... COMPONENT DESCRIPTION T-157 SYSTEM DIAGRAM ................... T-158 ................. SERVICE WARNINGS T-159 GENERAL PROCEDURES ............. T-160 TROUBLESHOOTING ................. T-160 DRIVER-SIDE AIR BAG MODULE ....... T-206 PASSENGER-SIDE AIR BAG MODULE . . T-207 DIAGNOSTIC MODULE ................ T-208 CLOCK SPRING ....................... T-209 CRASH SENSOR (D-SENSOR) ......... T-210 CRASH SENSOR (S-SENSOR) ......... T-213 AIR BAG MODULE DISPOSAL . .. PROCEDURE ........................ T-215 INSPECTION OF SST (DEPLOYMENT TOOL) ............... T-217 Gartner Banana

INDEX T SRS AIR BAG SYSTEM 1. Driver-side air bag module ...... Removal / Installation page T-206 ........ Disposal procedure page T-215 2. Passenger-side air bag module ...... Removal / Installation page T-207 ........ Disposal procedure page T-215 3. Clock spring ...... Removal / Installation page T- 19 ................ Inspection page T-209 I 45UOTX-007 4. Diagnostic module ...... Removal / Installation page T-208 5. Crash sensor (D-sensor) ...... Removal / Installation page T-210 ................ Inspection page T-212 6. Crash sensor (S-sensor) Removal / Installation ...... page T-213 ................ Inspection page T-214 Gartner Banana

T INSTRUMENT CLUSTER Symptom: Water temperature gauge does not operate. 05UOTX-466 Preparation SST ( ) ... CANADA ONLY I 45UOTX-036 49 0839 285 Checker, fuel and thermometer 05UOTX-052 Step 1 1. Disconnect the water temperature sensor connector. 2. Connect the red lead of the SST to terminal A of the con- nector and the black lead to ground. 3. Turn the ignition switch to ON. 4. Set the SST to the resistance values shown in the figure. To get an accurate reading, wait 2 minutes after setting each value. 5. Verify that the water temperature gauge indicates the correct values. The allowable indication error is twice the width of the needle. For inspection of gauges Gauge display I Action Correct Incorrect I ( ) ... CANADA ONLY 45UOTX-038 T-26 Replace water temperature sensor Go to Step 2 Gauge display Correct Step 2 1. Remove the instrument cluster. (Refer to page T-29.) 2. Apply battery positive voltage to terminal 2K of the instrument cluster and connect terminal 2J of the instru- ment cluster to ground. 3. Connect the red lead of the SST to terminal 2L of the instrument cluster and the black lead to ground. 4. Set the SST to the resistance values shown in the figure. To get an accurate reading, wait 2 minutes after setting each value. 5. Verify that the water temperature gauge indicates the correct values. The allowable indication error is twice the width of the needle. Action Repair wiring harness (Instrument cluster - Water temperature sensor) I Incorrect I ReDlace water tem~erature aauae I Gartner Banana

T INSTRUMENT CLUSTER Symptom: Oil pressure gauge does not operate. 05UOTX-468 Preparation SST I 49 0839 285 For inspection of Checker, fuel gauges and thermometer Step 1 1. Disconnect the connector from the oil pressure sensor. 2. Connect the red lead of the SST to the A (YIR) terminal wire and the black lead to ground. 3. Turn the ignition switch ON. 4. Set the SST to the resistance values shown in the figure. To get an accurate reading, wait 2 minutes after setting each value. 5. Verify that the gauge indicates the correct values. The al- lowable indication error is twice the width of the needle. I Incorrect I GO to step 2 Gauge display Correct Step 2 1. Remove the instrument cluster. (Refer to page T-29.) 2. Apply battery positive voltage to terminal 2K and ground to terminal 2J. 3. Connect the red lead of the SST to terminal 26 and the black lead to ground. Action Replace oil pressure sensor 4. Set the SST to the resistance values shown in the figure. To get an accurate reading, wait 2 minutes after setting each value. 5. Verify that the gauge indicates the correct values. The al- lowable indication error is twice the width of the needle. Incorrect I Replace oil pressure gauge Gauge display Correct Action Repair wiring harness (Instrument cluster - Oil pressure sensor) Gartner Banana

T INSTRUMENT CLUSTER 4. Set the SST to the resistance values shown in the figure. To get an accurate reading, wait 2 minutes after setting each value. 5. Verify that the gauge indicates the correct values. The al- \J lowable indication error is twice the width of the needle. 6. If not as specified, replace the oil pressure gauge. PRINTED CIRCUIT lnspection 1. Remove the instrument cluster. (Refer to page T-29.) 2. Check the printed circuit for damage or oxidization. 3. If necessary, replace the printed circuit. VEHICLE SPEED SENSOR lnspection 1. Remove the instrument cluster. 2. Connect an ohmmeter between terminals 2D and 2F. 3. Verify that the ohmmeter needle pulsates while rotating the speedometer cable shaft. ~ Pulsation: Ushaft rotation 4. If the correct number of pulsations fail to occur during each shaft rotation, replace the vehicle speed sensor. (Refer to page T-29.) WATER TEMPERATURE SENDER UNlT lnspection 1. Remove the sensor. 2. Place the sensor and a thermometer in water. 3. Heat the water gradually, and measure the resistance of the sensor with an ohmmeter. 4. If the resistance is not as specified, replace the sensor. Resistance: 190-260Q at 50°C (1 22°F) FUEL GAUGE SENDER UNlT (IN FUEL TANK) lnspection 1. Remove the fuel tank gauge sender unit. (Refer to section F.) 2. Disconnect the fuel gauge sender unit connector. 3. Check resistance between terminals A and B while slow- ly moving the unit arm from point F to point E. 4. If not correct, replace the fuel gauge sender unit. 2 Gartner Banana