SHIFT-LOCK SYSTEM INSPECTION
2016 – MX-5 – Transmission/Transaxle
SHIFT-LOCK SYSTEM INSPECTION
Shift-Lock System Inspection
1. Switch the ignition ON (engine off).
2. Shift the selector lever to the P position.
3. Verify that lock release button cannot be pressed in and the selector lever cannot be shifted from the P to R position when the brake pedal is not depressed.
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If it can be verified, go to the next step.
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If not as verified, inspect the following parts:
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Shift-lock solenoid (See Shift-Lock System Inspection.)
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Not P position switch (See NOT P POSITION SWITCH INSPECTION.)
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Brake switch (See BRAKE PEDAL INSPECTION.)
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Start stop unit (See START STOP UNIT INSPECTION.)
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PCM (See PCM INSPECTION [SKYACTIV-G 2.0].)
4. Verify that the selector lever can be shifted from P to R position while the lock release button is pressed with brake pedal depressed.
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If it can be verified, go to the next step.
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If not as verified, inspect the following parts:
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Shift-lock solenoid (See Shift-Lock System Inspection.)
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Not P position switch (See NOT P POSITION SWITCH INSPECTION.)
-
Brake switch (See BRAKE PEDAL INSPECTION.)
-
Start stop unit (See START STOP UNIT INSPECTION.)
-
PCM (See PCM INSPECTION [SKYACTIV-G 2.0].)
Shift-Lock Solenoid Inspection
NOTE:
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The shift-lock solenoid is built into the selector lever component.
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the following parts:
a. Selector lever knob (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
b. Shift panel component (See SHIFT PANEL REMOVAL/INSTALLATION.)
3. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
4. Verify that the voltages of each of the selector lever component terminals are as indicated in the table.
Shift-lock solenoid specification
|
Terminal |
Connected to |
Test condition |
Voltage (V) |
|
A |
IG1 relay |
Ignition switched ON (engine on) |
B+ |
|
Except above |
Below 1.0 |
||
|
F |
Start stop unit |
Under any condition |
Below 1.0 |
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If the voltage is not as indicated in the table, repair or replace the related wiring harness.
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If the voltage can be verified as indicated in the table, replace the selector lever component. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
Shift-lock Override Button Inspection
1. Switch the ignition off.
2. Verify that the selector lever is in the P position.
3. Without the brake pedal depressed, verify that the selector lever cannot be shifted from the P position.
4. Remove the shift-lock override cover using a tape-wrapped flathead screwdriver.
5. Insert the flathead screwdriver and press the shift-lock override button.
6. Verify that the selector lever can be shifted from the P position.
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If not as verified, replace the selector lever. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)