Automatic Transmission Shift Mechanism: Diagnosis Mazda MX-5 NC

KEY INTERLOCK INSPECTION

1. Verify that the key cannot be pulled out except in the P position. If there is any malfunction, inspect the interlock cable. (See «INTERLOCK CABLE INSPECTION»(ref-244510-S37843796872006092400000) .)

Scheme 174

Scheme 175

Scheme 176

1. Turn the ignition switch to the ON position, (engine off)
2. Remove the clip of the selector lever base plate, then remove the interlock cable from the U-groove.
3. Remove the interlock cable from the selector lever.
4. Verify that the interlock cable moves freely with the brake pedal depressed. If there is any malfunction, replace the interlock cable.

Scheme 177

Scheme 178

Scheme 179

Scheme 180

Scheme 181

Scheme 182

Scheme 183

Scheme 184

Scheme 185

1. Turn the ignition switch to the ON position, (engine off)
2. Pull up the lock piece of the interlock cable to release the lock.
3. Remove the clip of the selector lever base plate, then remove the interlock cable from the U-groove.
4. Remove the interlock cable from the selector lever.
5. Fully pull the end of the interlock cable to the selector lever.
6. Remove the lock unit from the bracket.
7. Verify that the markings on the slider pin and the lock unit are aligned.
8. Push a 1.5 mm {0.06 in} round bar or similar into hole A by fully pushing the slider pin in.
9. Push a 1.5 mm {0.06 in} round bar or similar into hole B and hole C of the lock unit until it passes through.
10. Disconnect the brake switch connector.
11. Remove the brake switch. (See «BRAKE PEDAL REMOVAL/INSTALLATION»(ref-244464-S41502818202006092400000) .)
12. Install the new brake switch. (See «BRAKE PEDAL REMOVAL/INSTALLATION»(ref-244464-S41502818202006092400000) .) CAUTION: Do not connect the brake switch connector until the interlock cable adjustment is completed.
13. Install the lock unit to the bracket. (See «INTERLOCK CABLE INSTALLATION NOTE»(ref-244510-S29152215522006092400000) .)
14. Rotate the slider pin to release the lock, and verify that it slides freely.
15. Verify that the slider pin contacts the brake pedal stopper rubber and rotate the slider pin to lock.
16. Install the interlock cable end to the interlock link on the selector lever.
17. Fit the interlock cable in the U-groove in the selector lever base plate and install the clip.
18. Press the interlock cable lock piece in until it is locked. CAUTION: Applying a load to the interlock cable while pressing the lock piece in can affect the lock unit operation.
19. Remove a 1.5 mm {0.06 in} round bar or similar from the lock unit hole A, B and C.
20. Connect the brake switch connector with the brake pedal released. CAUTION: The clearance between the brake switch and the brake pedal is automatically adjusted to the correct amount when the brake switch connector is connected after the brake switch has been properly installed. If the brake switch is not properly installed or the connector is connected before installation, the clearance may be incorrect, causing a brake light malfunction. Therefore, always verify that the brake switch is properly installed before connecting the connector. Once the brake switch clearance has automatically been adjusted, it cannot be adjusted again. Therefore, replace the switch with a new one when replacing the power brake unit or the pedal, or performing any procedure that changes the pedal stroke.
21. Inspect shift lock operation. (See «SHIFT LOCK INSPECTION»(ref-244510-S08756168622006092400000) .)

Scheme 186

Scheme 187

1. Turn the ignition switch to the ON position (engine off).
2. With the brake pedal depressed, verify that there is a "click" at each range when shifted.
3. Verify that the selector lever can be shifted.
4. Verify that there is a "click" at each position when shifted from the P position to the M range.
5. Verify that the positions of the selector lever and the indicator are aligned. If there is any malfunction, adjust the TR switch. (See «TRANSMISSION RANGE (TR) SWITCH ADJUSTMENT [SJ6A-EL]»(ref-244474-S36935560292006092400000) .)
6. Verify that the vehicle operates in each selected range.

Scheme 188

Scheme 189

1. Remove the battery cover.
2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-244448-S25513985422006092400000).)
3. Remove the shift knob. (See «SELECTOR LEVER REMOVAL/INSTALLATION»(ref-244510-S08459528322006092400000).)
4. Remove the console panel and indicator assembly. (See «SELECTOR LEVER REMOVAL/INSTALLATION»(ref-244510-S08459528322006092400000).)
5. Disconnect the selector lever component connector.
6. Verify continuity as indicated in (Scheme 189). If there is any malfunction, replace the selector lever. (See «SELECTOR LEVER REMOVAL/INSTALLATION»(ref-244510-S08459528322006092400000).)

Scheme 190

1. Remove the battery cover.
2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-244448-S25513985422006092400000) .)
3. Remove the following parts. Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-244480-S26287572182006092400000) .) Column cover (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-244480-S03023275402006092400000) .) Driver-side air bag module (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-244489-S36157782332006092400000) .) Steering shaft (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-244476-S08528774112006092400000) .) Audio unit (See «CENTER PANEL UNIT REMOVAL/INSTALLATION»(ref-244490-S18996003212006092400000) .) SAS control module (See «SAS CONTROL MODULE REMOVAL/INSTALLATION»(ref-244489-S11717912132006092400000) .) Tunnel member component Middle pipe (See «EXHAUST SYSTEM REMOVAL/INSTALLATION [LF]»(ref-244457-S21490606952006092400000) .) Insulator (See «TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION [SJ6A-EL]»(ref-244474-S00794406922006092400000) .)
4. Shift the selector lever to the P position.
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7. After installation, perform the shift lock inspection and key interlock inspection. (See «SHIFT LOCK INSPECTION»(ref-244510-S08756168622006092400000) .) (See «KEY INTERLOCK INSPECTION»(ref-244510-S26258586742006092400000) .)

Scheme 191

1. Mark the manual shaft lever component see scheme 21
2. Remove the manual shaft lever component installation nut.

Scheme 192

Scheme 193

Scheme 194

Scheme 195

Scheme 196

Scheme 197

1. Push a 1.5 mm {0.06 in} round bar or similar into hole A by fully pushing the slider pin in.
2. Push a 1.5 mm {0.06 in} round bar or similar into hole B and hole C of the lock unit until it passes through.
3. Install the new brake switch. (See «BRAKE PEDAL REMOVAL/INSTALLATION»(ref-244464-S41502818202006092400000).) CAUTION: Do not connect the brake switch connector until the interlock cable is installed.
4. With the slider pin pressed, slide the lock unit to fix the lock unit hook into the bracket hole securely (Scheme 193) CAUTION: Allowing the interlock cable to be bent or twisted during installation can affect the lock unit operation.
5. Rotate the slider pin to release the lock, and verify that it slides freely.
6. Pull the slider pin outward until it contacts the brake pedal stopper rubber and rotate the slider pin to lock.
7. Verify that the shift the selector lever in P position.
8. Install the interlock cable end to the cam pin on the selector lever.
9. Fit the interlock cable in the U-groove in the selector lever base plate, and install the clip.
10. Press the interlock cable lock piece in until it is locked. CAUTION: Applying a load to the interlock cable while pressing the lock piece in can affect the lock unit operation.
11. Remove a 1.5 mm {0.06 in} round bar or similar from the lock unit hole A, B and C.
12. Connect the brake switch connector with the brake pedal released. CAUTION: The clearance between the brake switch and the brake pedal is automatically adjusted to the correct amount when the brake switch connector is connected after the brake switch has been properly installed. If the brake switch is not properly installed or the connector is connected before installation, the clearance may be incorrect, causing a brake light malfunction. Therefore, always verify that the brake switch is properly installed before connecting the connector. Once the brake switch clearance has automatically been adjusted, it cannot be adjusted again. Therefore, replace the switch with a new one when replacing the power brake unit or the pedal, or performing any procedure that changes the pedal stroke.
13. Turn the ignition switch to ON position.
14. Install the interlock cable to the key cylinder.
15. Slide the outer casing to the key cylinder, and insert the clip over the convex part of the outer casing.

STEERING SHIFT SWITCH INSPECTION

1. Remove the driver-side air bag module. (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-244489-S36157782332006092400000) .)
2. Connect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [LF]»(ref-244448-S25513985422006092400000) .)
3. Turn the ignition switch to ON position.
4. Measure the voltage at the steering shift switch. When inspecting terminal C for continuity, disconnect the steering shift switch connector.
5. If the value are not as specified in the Terminal Voltage List (Reference), inspect the parts under "Action" and related wiring harnesses.
6. If the parts inspected under "ACTION" are found to be normal but the system still does not operate normally, replace the up or down switch according to the following conditions: The voltage is normal when the up switch is on and is abnormal when the down switch is on: Replace the down switch. The voltage is normal when the down switch is on and is abnormal when the up switch is on: Replace the up switch.

Scheme 198

STEERING SHIFT SWITCH TERMINALS VOLTAGE SPECIFICATION