1997 MAZDA MX-5 transmission

TRANSMISSION RANGE SWITCH
1. Check for starter operation with ignition switch in START position and selector lever in "P" and "N"
position only. Ensure back-up lights illuminate with ignition in ON position and selector lever in "R"
position. If any problems are found, go to next step.
2. Disconnect transmission range switch connector. See Fig. 3
. Check continuity between specified
terminals. See Fig. 9
. If continuity is not as specified, replace switch.
Fig. 9: Checking Transmission Range Switch

Courtesy of MAZDA MOTORS CORP.
176°F (80°C).35

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
Microsoft
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TCM TERMINAL VOLTAGE TESTS
Turn ignition switch to ON position. Access TCM. TCM is mounted under left corner of dash, above fuse box.
DO NOT disconnect harness connector. Using DVOM, measure voltage. See Fig. 4
for terminal identification.
See Fig. 10
and Fig. 11 . After verifying that appropriate condition has been met, check voltage. If voltage is
not within specification, inspect component or appropriate circuit. If voltage is within specification, replace
TCM.

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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Sunday, July 05, 2009 1:35:04 PMPage 25 © 2005 Mitchell Repair Information Company, LLC.

Fig. 10: TCM Pin Voltage Table (1 Of 2)
Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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Sunday, July 05, 2009 1:35:04 PMPage 26 © 2005 Mitchell Repair Information Company, LLC.

Fig. 11: TCM Pin Voltage Table (2 Of 2)
Courtesy of MAZDA MOTORS CORP.
ELECTRICAL SPECIFICATIONS
SOLENOID RESISTANCE SPECIFICATIONS
ComponentResistance Ohms
Solenoids
Shift Solenoids13-27
TCC Solenoid13-25
Sensor
TSS245

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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Sunday, July 05, 2009 1:35:04 PMPage 27 © 2005 Mitchell Repair Information Company, LLC.

WIRING DIAGRAMS

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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Fig. 12: Transmission Wiring Diagram (1997 Miata)

1997 Mazda MX-5 Miata
1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls
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Sunday, July 05, 2009 1:35:04 PMPage 30 © 2005 Mitchell Repair Information Company, LLC.

1. Using Clutch Disconnect Tool (T88T-70522-A), disconnect hydraulic line at transmission. See Fig. 2 .
Clean reservoir cap area. Fill reservoir with DOT 3 brake fluid. Maintain fluid level in reservoir during
bleeding procedure.
2. Using small screwdriver, press and hold internal mechanism of male coupler to open valve. While
holding valve open, have an assistant slowly press and hold clutch pedal to floor.
3. Remove screwdriver to allow valve to close. Release clutch pedal. Refill reservoir.
4. Repeat steps 2) and 3). Install reservoir cap. Reconnect hydraulic line. Tug hydraulic line lightly to verify
secure connection.
5. As rapidly as possible, operate clutch pedal for full 5-10 strokes. Wait 3 minutes. Repeat this step at least
3 more times.
6. Loosen bleed screw, located next to release cylinder connection. Have an assistant press and hold clutch
pedal. Tighten bleed screw. Release pedal. Refill reservoir. Check clutch operation.
Fig. 2: Removing Hydraulic Line (B2300, B2500, B3000 & B4000)

Courtesy of MAZDA MOTORS CORP.
Miata
1. Remove bleeder screw cap located at clutch release cylinder. Install vinyl hose onto bleeder screw.

1997 Mazda MX-5 Miata
CLUTCH 1997-98 CLUTCHES Mazda - RWD
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