Mazda MX-5 Miata (1997+). Manual — part 14

Using Scan Tool

Ensure ignition is in OFF position. Connect scan tool to Data Link Connector (DLC) located under left side of
instrument panel, near center console. Turn ignition switch to ON position. Check for stored DTC. See
DIAGNOSTIC TROUBLE CODE IDENTIFICATION table. For trouble shooting of codes, see
DIAGNOSTIC TESTS .

appropriate SELF-DIAGNOSTIC SYSTEM article in ENGINE PERFORMANCE.

1997 Mazda MX-5 Miata

1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls

Fig. 2: Locating Data Link Connector (DLC) Location
Courtesy of MAZDA MOTORS CORP.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC No.

(1)

Probable Cause

P0705

Transmission Range Sensor Malfunction

1997 Mazda MX-5 Miata

1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls

CLEARING CODES

To clear DTC stored in TCM, use scan tool. See scan tool instruction manual. Road test vehicle.

COMPONENT LOCATION

COMPONENT LOCATION

COMPONENT CONNECTOR IDENTIFICATION

P0706

Transmission Range Sensor Range/Performance

P0710

(2)

TFT Sensor Malfunction

P0711

(2)

TFT Sensor Range/Performance

P0715

Input/Turbine Speed Sensor

P0725

Engine Speed Input Circuit Malfunction

P0731

Incorrect 1st Gear Ratio

P0732

Incorrect 2nd Gear Ratio

P0733

Incorrect 3rd Gear Ratio

P0734

Incorrect 4th Gear Ratio

P0740

TCC System Malfunction

P0750

1-2 Shift Solenoid

P0755

2-3 Shift Solenoid

P0760

3-4 Shift Solenoid

P1720

Vehicle Speed Sensor

P1743

Lock-Up Solenoid Valve

P1765

3-2 Timing Control Solenoid Valve

P1790

Throttle Position Sensor

P1795

Idle Switch

(1)

Check listed component for probable cause. Check wiring and connection of specified component.

(2)

Transmission Fluid Temperature.

Description

Location

Engine Control Module

Behind Passenger Seat

Input/Turbine Speed Sensor

Mounted To 4th Gear Case

Shift Solenoids

See Fig. 1

TCC Lock-Up Solenoid

See Fig. 1

Transmission Control Unit

Above Fuse Box

3-2 Control Valve

See Fig. 1

TFT Sensor

Mounted In-Line To Cooler Line

Vehicle Speed Sensor

Mounted In Speedometer

1997 Mazda MX-5 Miata

1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls

COMPONENT CONNECTOR IDENTIFICATION

(1)

Fig. 3: Locating Transmission Component Connectors

Component

See Fig.

Engine Control Module (ECM)

Fig. 5

Hold Switch

(2)

Instrument Cluster

(3)

Transmission Control Module (TCM)

Fig. 4

Valve Body Solenoids

(4)

(1)

For connector location see Fig. 3 .

(2)

See HOLD SWITCH under COMPONENT TESTING.

(3)

See VEHICLE SPEED SENSOR (VSS) under COMPONENT TESTING.

(4)

See SOLENOID VALVES under COMPONENT TESTING.

1997 Mazda MX-5 Miata

1997 AUTOMATIC TRANSMISSIONS NC4A-EL Electronic Controls