1994 MAZDA MX-5 air condition

CONTROL SYSTEM SENSOR CONNECTOR EATED OXYGEN Specification Fully closed: 0.1-1.1 V Fully open: 3.14.5V (Verify that the voltage increase is directly d propotioned to the throttle valve opening angle.) 8. Tighten the attaching screws. Tightening torque: 1.6-2.3 N.m (16-24 kgfmm, 14-20 in-lbf} 9. If not adjusted, replace the throttle position sensor. 45UOFX-495 Replacement 1. Turn the ignition switch OFF. 2. Remove the throttle position sensor screws. 3. Remove the throttle position sensor . 4. Replace a new throttle position sensor and adjust it. (Refer to page F-155.) 5. Tighten the throttle position sensor screws. Tightening torque: 1.6-2.3 N.m (16-24 kgf-cm, 14-20 in-lbf} HEATED OXYGEN SENSOR Inspection On-vehicle 1. Warm-up the engine to normal operating temperature and run it at idle. 2. Disconnect the heated oxygen sensor connector. -.-' 3. Measure the voltage at terminal A. 4. If not as specified, check the intake air system, the fuel system and run the on-board diagnosis test. 5. If these system are OK, replace the heated oxygen sen- sor. Specification Heater 1. Disconnect the heated oxygen sensor connector. 2. Measure resistance between terminals C and D. Resistance: Approx. 13R (20°C (68°F)) Engine condition Terminal A 3. Replace the heater if not as specified. Increasing engine speed (V) 0.&1 .O Idle Below 1.0 Replacement 1. Disconnect the heated oxygen sensor connector. 2. Remove the heated oxygen sensor. 3. Install in the reverse order of removal. Decreasing engine speed (V) 0-0.4 Tightening torque: 3049 N-m (3.0-5.0 kgf-m, 22-36 ftlbf) Gartner Banana

Before beginning any service procedure. refer to section T of this manual for air bag system service warnings and audio antitheft system alarm conditions . ENGINE ELECTRICAL SYSTEM INDEX ....................................... G- 2 OUTLINE ..................................... G- 3 SPECIFICATIONS ........................... G- 3 TROUBLESHOOTING GUIDE .................. G- 4 CHARGING SYSTEM .......................... G- 6 PREPARATION ............................. G- 6 CIRCUIT DIAGRAM ......................... G- 6 TROUBLESHOOTING ....................... G- 7 BATTERY .................................. G- 8 ALTERNATOR .............................. G-10 DRIVE BELT ................................ G-13 IGNITION SYSTEM ............................ G-15 PREPARATION ............................. G-15 CIRCUIT DIAGRAM ......................... G-15 TROUBLESHOOTING ....................... G-16 IGNITION TIMING ........................... G-17 SPARK PLUG ............................... G-18 IGNITION COIL ............................. G-19 IGNITER ................................... G-19 HIGH-TENSION LEAD ....................... G-20 STARTING SYSTEM ........................... G-21 CIRCUIT DIAGRAM ......................... G-21 TROUBLESHOOTING ....................... G-21 STARTER .................................. G-22 STARTER INTERLOCK SWITCH (MT) ......... G-28 45UOGX401 Gartner Banana

Before beginning any service procedure. refer to section T of this manual for air bag system service warnlngs and audio antitheft system alarm conditions . i, CLUTCH INDEX ....................................... H- 2 OUTLINE ..................................... H- 3 SPECIFICATIONS ........................... H- 3 TROUBLESHOOTING GUIDE .................. H- 3 CLUTCH FLUID ............................... H- 4 ............................. PREPARATION H- 4 ............................ REPLACEMENT H- 4 .............................. CLUTCH PEDAL H- 5 .............................. ADJUSTMENT H- 5 REMOVAL / INSPECTION / INSTALLATION .... H- 6 ................. CLUTCH MASTER CYLINDER H- 7 PREPARATION ............................. H- 7 REMOVAL / INSTALLATION .................. H- 8 AIR BLEEDING ............................. H- 9 OVERHAUL ................................ H-10 CLUTCH RELEASE CYLINDER ................ H-12 PREPARATION ............................. H-12 REMOVAL / INSTALLATION .................. H-12 AIR BLEEDING (REFER TO PAGE H-9.) OVERHAUL ............................... H-13 CLUTCH UNIT ................................ H-14 PREPARATION ............................. H-14 REMOVAL / INSTALLATION .................. H-14 CLUTCH RELEASE COLLAR .................. H-17 INSPECTION ............................... H-17 CLUTCH COVER ............................. H-17 INSPECTION ............................... H-17 CLUTCH DISC ................................ H-17 INSPECTION ............................... H-17 PILOT BEARING .............................. H-18 INSPECTION ............................... H-18 FLYWHEEL ................................... H-18 INSPECTION ............................... H-18 35UOHX-001 Gartner Banana

Before beginning any service procedure. refer to section T of this manual for air bag system service warnings and audio antitheft system alarm conditions . MANUAL TRANSMISSION INDEX ....................................... J- 2 ..................................... OUTLINE J- 3 SPECIFICATIONS ........................... J- 3 ........................ STRUCTURAL VIEW J- 4 ............................. COMPONENTS J- 5 ............................. POWER FLOW J- 6 TROUBLESHOOTING GUIDE .................. J- 7 .......................... TRANSMISSION OIL J- 8 ............................... INSPECTION J- 8 ............................ REPLACEMENT J- 8 TRANSMISSION .............................. J- 9 ............................. PREPARATION J- 9 REMOVAL .................................. J-10 DISASSEMBLY ............................. J-13 ............................... INSPECTION 5-23 ASSEMBLY ................................. J-26 INSTALLATION ............................. J-45 25UOJX-011 Gartner Banana

Before beginning any service procedure. refer to section T of this manual for air bag system service warnings and audio antitheft system alarm conditions . AUTOMATIC TRANSMISSION INDEX ................................ K- 2 OUTLINE ............................. K- 3 SPECIFICATIONS ................... K- 3 ........... CROSS-SECTIONAL VIEW K- 4 POWER FLOW DIAGRAM ............ K- 5 OPERATION OF COMPONENTS ...... K- 5 FLUID PASSAGE LOCATIONS ........ K- 6 TROUBLESHOOTING .................. K- 8 GENERAL NOTES ................... K- 8 .......... QUICK DIAGNOSIS CHART K- 9 ON-BOARD DIAGNOSIS SYSTEM ...... K- 11 DESCRIPTION ...................... K- 11 PREPARATION ...................... K- 11 ....... DIAGNOSTIC TROUBLE CODE K- 11 .......... MECHANICAL SYSTEM TEST K- 22 PREPARATION ...................... K- 22 STALL TEST ........................ K- 22 TIME LAG TEST ..................... K- 25 LINE PRESSURE TEST .............. K- 26 ROAD TEST .......................... K- 29 D-RANGE TEST ..................... K- 29 S-RANGE TEST ..................... K- 31 ..................... L-RANGE TEST K- 32 . P-RANGE TEST ..................... K- 33 AUTOMATIC TRANSMISSION FLUID (ATF) ................................ K- 35 ATF ................................ K- 35 REPLACEMENT ..................... K- 37 ELECTRICAL SYSTEM COMPONENTS . . K- 38 PREPARATION ...................... K- 38 HOLD SWITCH ...................... K- 38 PARWNEUTRAL SWITCH ............ K- 39 .............. ATF THERMOSENSOR K- 41 VEHICLE SPEED PULSE GENERATOR ...................... K- 41 1-2 SHIFT. 2-3 SHIFT. 3-4 SHIFT. ... 3-2 CONTROL SOLENOID VALVE K- 42 LOCKUP CONTROL SOLENOID ....... VALVE ............................ K- 42 POWERTRAIN CONTROL MODULE (TRANSMISSION) .................. K- 43 TRANSMISSION ....................... K- 46 TRANSMISSION UNIT (REMOVAL) .... K- 46 TRANSMISSION UNlT (DISASSEMBLY) ................... K- 50 TORQUE CONVERTER .............. K- 61 OILPUMP .......................... K- 62 FOURTH GEAR CONNECTING SHELL AND FOURTH GEAR PLANETARY GEAR UNIT (FOURTH GEAR SUN GEAR. FOURTH GEAR PLANETARY PINION CARRIER. FOURTH GEAR CLUTCH HUB) ...... K- 67 DIRECT CLUTCH .................... K- 70 FOURTH GEAR BAND SERVO ........ K- 76 DRUM SUPPORT. ACCUMULATOR. AND FOURTH GEAR CASE ......... K- 79 2ND BAND SERVO .................. K- 83 FRONT CLUTCH .................... K- 86 REAR CLUTCH ...................... K- 91 CONNECTING SHELL AND FRONT PLANETARY GEAR UNlT (REAR CLUTCH HUB. FRONT PLANETARY PINION CARRIER. REAR SUN GEAR) ................. K- 96 REAR PLANETARY GEAR UNlT (CONNECTING DRUM. REAR PLANETARY PINION CARRIER. ONE-WAY CLUTCH) K- 98 LOW AND REVERSE BRAKE K-102 ................ ......... EXTENSION HOUSING AND PARKING MECHANISM ............. K-107 OIL SEAL ........................... K-ill CONTROL VALVE BODY ............. K-112 UPPER VALVE BODY ................ K-116 LOWER VALVE BODY ............... K-120 CONTROL VALVE BODY ............. K-125 VACUUM DIAPHRAGM ............... K-130 TRANSMISSION UNIT (ASSEMBLY) ... K-132 TRANSMISSION UNIT (INSTALLATION) ................... K-147 OIL COOLER .......................... K-151 REMOVAL I INSPECTION I INSTALLATION ..................... K-151 DRIVE PLATE ......................... K-152 PREPARATION ...................... K-152 REMOVAL 1 INSPECTION I INSTALLATION ..................... K-152 SHIFT MECHANISM (WITH SHIFT-LOCK SYSTEM) ......... K-154 SHIFT-LOCK SYSTEM COMPONENTS K-154 TROUBLESHOOTING ................ K-155 SHIFT-LOCK ........................ K-157 EMERGENCY OVERRIDE BUTTON ... K-157 KEY INTERLOCK .................... K-157 KEY INTERLOCK SOLENOID ......... K-157 KEY INTERLOCK UNIT ............... K-158 P RANGE SWITCH .................. K-159 SHIFT-LOCKACTUATOR ............. K-159 SELECTOR LEVER .................. K-161 HYDRAULIC CIRCUIT .................. K-168 P RANGE ........................... K-168 R RANGE ........................... K-169 N RANGE; BELOW 7 kmlh I4.34 mph) . K-170 N RANGE; ABOVE 9 kmlh (5.58 mph} . K-171 D RANGE; 1 ST GEAR ................ K-172 D RANGE; 2ND GEAR ............... K-173 D RANGE; THIRD GEAR ............. K-174 D RANGE; FOURTH GEAR. LOCKUP ON ....................... K-175 S RANGE; 1 ST GEAR ................ K-176 S RANGE; 2ND GEAR ............... K-177 S RANGE; THIRD GEAR ............. K-178 L RANGE; 1 ST GEAR ................ K-179 L RANGE; 2ND GEAR ................ K-180 Gartner Banana

ON-BOARD DIAGNOSIS SYSTEM K )IAGNOSTIC TROUBLE CODE N0.06 VEHICLE SPEED SENSOR INSPECTION STEP ACTION Repair or replace connector Are there any poor connections at vehicle speed sensor and powertrain control module (Transmission) connectors? Yes Go to next step Connect a circuit tester to terminal as shown. Is input voltage of vehicle speed sensor at powertrain control module (Transmission) OK? page K-44 Yes Go to step 5 1 (+) term. I (-) term. ( Voltage (v)( Condition I Go to next step Below 1.5 While Remove instrument cluster Is there continuity between terminal 2D of meter connector and terminal 1 M of pow- ertrain control module (Transmission) Yes Go to next step Repair or replace wiring and/or connector Connect circuit tester to terminals 2D and 2A of meter connector Does pointer of circuit tester move slightly when front wheels are slowly turned? Yes Go to next step Replace vehicle speed sensor section T Disconnect the negative battery cable for at least 20 seconds and depress the brake pedal Connect the battery cable and recheck for code. Is diagnostic trouble code displayed Dane K-21 Yes Replace powertrain control module (transmission) page K-45 Intermittent poor connection check for cause Gartner Banana

K ON-BOARD DIAGNOSIS SYSTEM - -- )IAGNOSTIC TROUBLE CODE N0.12 THROTTLE POSITION SENSOR ACTION I STEP INSPECTION Are there any poor connections at throttle position sensor and powertrain control module (transmission) connector or termi- nal? Yes Repair or replace connector I Go to next step Go to step 5 Connect a circuit tester to terminal as shown Is input voltage of throttle position sensor (TVO) at powertrain control module (transmission) OK? page K-45 1 (+) term. I (-) term. I Voltage (v)/ Condition 1 Yes No lgnition Go to next step ' 2T Ground valve Approx. closed I 0.8--4.3 position to wide open 1 throttle Go to next step Connect a circuit tester to terminals as shown Is input voltage of throttle position sensor (VREF) at powertrain control module (transmission) OK? page K-44 (+) term. (-) term. Voltage (V) Condition Approx. lgnition 4.55 ;p" 2A Ground Ignition 0 switch OFF Yes Check voltage at terminal 21 of powertrain control module (En- gine) Voltage: 4.5--5.5V (Ignition switch ON) If OK, go to next step If not OK, repair wiring andlor connector Check wiring and connectors form Powertrain control module (transmission) to throttle position sensor If OK, go to next step If not OK, repair wiring andlor connector Is throttle position sensor OK? Section F Yes No Yes Adjust or replace throttle position sensor t@? section F I Replace powertrain control module (transmission) t@? page K-45 is connect the negative battery cable for at least 20 seconds and depress the brake pedal Connect the battery cable and recheck for diagnostic trouble code Is diagnostic trouble code displayed? Daae K-21 Intermittent poor connection Check for cause Gartner Banana

ON-BOARD DIAGNOSIS SYSTEM K :TIC TROUBLE CODE No.55 VEHICLE SPEED PULSE GENERATOR ACTION Repair or replace connector INSPECTION control module (transmission) connector or terminal? I (+) term. 1 (-) term. I Voltage (v)( Condition I Are there any poor connections at vehicle speed pulse generator and powertrain No ' Go to next step Connect a circuit tester to terminal as shown Is input voltage of vehicle speed pulse generator at powertrain control module (transmission) OK? page K45 Engine Yes Engine I o ( stopped ( Yes Disconnect 20-pin powertrain control module (transmission) connector Is resistance between terminal 2J and ter- minal 2L OK? Go to step 5 I No I Go to next step Yes Go to step 5 Resistance: 200--400a Disconnect vehicle speed pulse genera- tor connector Is resistance between terminal E and ter- minal F OK? page K41 Resistance: 200--400n Disconnect the negative battery cable for at least 20 seconds and depress the brake mdal Sonnect the battery cable and recheck for jiagnostic trouble code Is diagnostic trouble code displayed? page K-21 45UOKX-019 Yes No Yes No Check wiring and connectors form powertrain control module (transmission) vehicle speed pules generator If OK, go to next step If not OK, repair wiring and/or connector Replace pulse generator Replace powertrain control module (transmission) us page K-45 Intermittent poor connection Check for cause Gartner Banana