1994 MAZDA MX-5 Workshop Manual

ROAD TEST (Hold) shift diagram LOCKUP AVAILABLE WHEN COASTING 818 718 - 618 - 518 ' 418 - 3/8 ' 218 - 118 - 018 0 20 (1 2) 40 (25) 60 (37) 80 (50) 100 (63) 120 (75) 140 (87) 160 (99) VEHICLE SPEED kmh {mph} Noise and Vibration Drive the vehicle in 2nd (Hold) and listen closely for any out of the ordinary noise or vibration. The torque converter, propeller shift, and differential can be sources of abnormal noise and vibration if they are not functioning properly. Check these when searching for sources of noise and vibration. L-RANGE TEST Shift Pattern For this test it is not necessary to inspect shift shock and shift points, since they are almost exactly the same as those for the D-range test. However, in the D-range (Normal) shift diagram, the shift points are different. ,, In L-range, the shift patterns for Normal mode are the same. 1. Shift the selector lever to L-range and select the Normal mode. 2. Accelerate the vehicle and verify that 1-2 up and downshifts are obtained, and that no third gear, no fourth gear, and no lockup are obtained. 3. Drive in 1 st gear, then decelerate and verify that engine braking effect is felt. 4. While driving in D-range (Hold mode) and third gear, shift the selector lever to L-range and verify that third gear is held until the 3-2 downshift point as shown in the L-range (Hold) shift diagram, and that 2nd gear is held until 2-1 downshift point is achieved. 5. Accelerate the vehicle in L-range (Hold mode) and verify that 1 st gear is held. L-range (Power) shift diagram LOCKUP AVAILABLE WHEN COASTING o 20 (12) 40 (25) 60 (37) 80 (50) 100 163) i 20 (75) 14dp7) 160 pgj VEHICLE SPEED kwh {mph) Gartner Banana

ROAD TEST L-range (Hold) shift diagram LOCKUP AVAILABLE WHEN COASTING 0 20 (1 2) 40 (25) 60 {37) 80 {50) 100 {63) 120 {75) 1 40 (87) 1 60 (99) VEHICLE SPEED kmh {mph) Noise and Vibration Drive the vehicle in 1 st (Hold) and listen closely for any out of the ordinary noise or vibration. The torque converter, propeller shift, and differential can be sources of abnormal noise and vibration if they are not functioning properly. Check these when searching for sources of noise and vibration. P-RANGE TEST 1. Shift into P range on a gentle slope, release the brake, and verify that the vehicle does not roll. 2. Shift into P range while driving the vehicle at 4 kmlh (2.5 mph) maximum on a level surface, and verify that the vehicle stops. Gartner Banana

K ROAD TEST Vehicle Speed at Shiftpoint Table Note Because of mechanical time lag, vehicle speed at shift during full-throttle is 5--6 kmlh (34 mph} higher than the specified vehicle speed. Mode POWER HOLD POWER HOLD -- POWER HOLD Wide open throttle Throttle condition Shift I Vehicle speed kmlh {rnph} - - D3 lockup ON DR-DA Wide open throttle I D*+Do 98-1 06 (61 -65) 152-1 62 {95--100) 58-64 436-39) J 33--46 {21-28) 5&76 {36--47) 82-1 1 0 {5 1 -68) 74-1 00 (46-62) 28--34 {I 7-21) 11-17 {7-10) 14-1 50 (87-93) 92-1 00 {57--62) 4248 (26-29) Half throttle Closed throttle position Kickdown (Wide open throttle) ,- . Dl-02 D2+D3 D344 D4 lockup ON D44'3 D3-+D1 D4-+D3 D3+D2 Ds-cDi Half throttle Closed throttle position Kickdown (Wide open throttle) All positions Wide open throttle Half throttle Closed throttle position Kickdown (Wide open throttle) All positions " 03-04 Dl432 D2-+D3 D3 lockup ON D3-04 D4+D3 D3+D1 D4+03 D3+D2 D2-4 D1-+D2 D2+D3 D4-rD3 D3+D1 D3 lockup ON %--cS:! s2-*s3 S3 lockup ON - - s142 s2+s3 Sg lockup ON Wide open throttle Half throttle Closed throttle position Kickdown (Wide open throttle) All positions s3-ts1 s3-*s2 s241 s3+s2 Sg lockup ON 152-1 62 {94-100) 44--55 (2&34) 99-1 08 {56-66) 98-1 06 {61-65) 140-164 (87-1 01) 28-34 {I 7-2 1 ) 11-1 7 {7-10) 14G150 {87-93) 92-1 00 (5742) 4248 {26--29) 27-33 {I 7-20) 35--45 (22-27) 152-1 58 {94-97) 12-18 {Gll} 95-1 05 (59-45) 58-64 (36-39) 1 00-1 08 {62--66) 98-1 05 (61 -65) 44-55 {28-34) 90--108 {56--67) 94-1 06 (58-66) 11-1 7 (7-1 0) 92-1 00 {57-42) 4248 (2629) 99-1 05 I61-65) 95--105 {59--65) L1-4-2 L142 . L3+L2 L24-1 L3-+L2 L2-h L241 L3 lockup ON d 5662 (35-38) 44--55 (27-34) 96-1 04 {60-64} 11-17 (7-lo} 99-105 {61--65) 4248 (26-29) 3-1 (21-25) 95-1 05 {59-65) i Gartner Banana

AUTOMATIC TRANSMISSION FLUID (ATF) K AUTOMATIC TRANSMISSION FLUID (ATF) ATF Inspection Level 1. Park the vehicle on level ground. 2. Apply the parking brake and position wheel chocks se- curely to prevent the vehicle from rolling. 3. Warm up the engine until the ATF reaches 60-70°C (1 40-1 58°F). 4. While depressing the brake pedal, shift the selector lever to each range (P-L), pausing momentarily in each range. 5. Shift back to P. Note In some cases it may be necessary to inspect the ATF in the cool range 15-25°C (59-77"F) before warm- ing up the engine. 6. Ensure that the ATF level is in the HOT (65°C) range. Add ATF to the specification, if necessary. ATF type: DexronQII or M-I11 Condition Determine whether the transmission should be disas- sembled by noting. 1. If the ATF is muddy or varnished. 2. If the ATF smells strange or unusual. Gartner Banana

K AUTOMATIC TRANSMISSION FLUID (ATF) Fluid leaks Check for fluid leaks of the transmission as shown below, and repair or replace as necessary. 1. Gaskets, O-ring, and plugs 2. Oil hoses, oil pipes, and connections 3. Oil cooler @ .... O-RING @ .... GASKET 0 .... OIL SEAL 0 .... PLUG @ .... OTHER Gartner Banana

AUTOMATIC TRANSMISSION FLUID (ATF) K REPLACEMENT 1. On level ground, jack up the vehicle and support it evenly on safety stands. Warning When the transmission and the ATF are hot, they can cause burns to the skin. Allow the transmis- sion and the ATF to cool before doing this proce- dure. 2. Loosen the oil pan installation bolts, and drain the ATF into a container. 3. Remove the oil pan and gasket. 4. Clean the oil pan and the magnet. 5. Install the oil pan along with a new gasket. Tightening torque: 5.9-7.8 N-m (60-80 kgfecm, 53-69 in-lbf) 6. Add approximately 4.0 L (4.2 US qt, 3.5 Imp qt} ATF, and check the ATF level. (Refer to page K-35.) Specified ATF: DexronmII or M-I11 Gartner Banana

K ELECTRICAL SYSTEM COMPONENTS ELECTRICAL SYSTEM COMPONENTS PREPARATION SST 49 GO1 8 904 Sheet 49 9200 162 Monitor, Engine Signal - 49 DO1 9 902 Adapter Harness For inspection of powertrain control module (transmission) terminal voltage For inspection of powertrain control module (transmission) terminal voltage p@ HOLD For inspection of powertrain control module (transmission) terminal voltage HOLD SWITCH lnspection lnspection of operation 1. Turn the ignition switch from OFF to ON. 2. Verify that the hold indicator light is not illuminated. De- press the hold switch and verify that the hold indicator -J light illuminates. 3. If not as specified, check the terminal voltage of the hold switch. lnspection of voltage 1. Remove the front console. 2. Turn the ignition switch ON. 3. Measure voltage at the hold switch connector. B+: Battery positive voltage Position (V): Voltage Normal (V) Depressed (V) 4. If not as specified, check the continuity of the hold switch. Connector terminal A B+ 0 B 0 0 Gartner Banana

ELECTRICAL SYSTEM COMPONENTS K Replacement 1. Disconnect the negative battery cable. 2. Remove the front console. 3. Remove the indicator panel installation screws. 4. Disconnect the connector and remove the hold switch terminals. 5. Remove the selector lever knob assembly. 6. lnstall a new selector lever knob assembly. lnspection of continuity 1. Disconnect the negative battery cable. 2. Disconnect the hold switch connector. 3. Check continuity of the switch. Tightening torque: 2.0-2.9 N.m (20-30 kgfscm, 18-26 in-lbf) Position Normal Depressed 7. lnstall the hold switch terminals and connect the connec- tor. 8. lnstall the indicator panel installation screws. (Refer to page K-163.) 9. lnstall the front console. 10. Connect the negative battery cable. PARKINEUTRAL SWITCH lnspection lnspection of operation 1. Verify that the starter operates only with the ignition switch at the START position and the selector lever in P and N ranges. 2. Verify that the back-up lights illuminate when shifted to R range with the ignition switch in the ON position. 3. Verify that the positions of the selector lever and the se- lector indicator light of the instrument cluster are aligned. 4. Check the ParkINeutral switch if not as specified. 0--4: Continuity 45UOKX-525 4. If not as specified, replace the selector lever knob as- sembly. (Refer to below.) 5. If the switch is OK, check the wiring harness. (Hold switch - powertrain control module (transmission), Hold switch - Body ground.) 6. lnstall the front console. 7. Connect the negative battery cable. Terminal A 0 B 0 Gartner Banana