1997 MAZDA MX-5 Factory Repair Manual

Courtesy of MAZDA MOTORS CORP.
Fig. 2: Identifying Main Fuse Block Components

Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
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Fig. 3: Main Fuse Block Legend
Courtesy of MAZDA MOTORS CORP.
FUSE BLOCK
Fuse block is located under driver's side of instrument panel. See Fig. 4
.
Fig. 4: Locating Fuse Block

Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
Microsoft
Sunday, July 05, 2009 1:54:39 PMPage 3 © 2005 Mitchell Repair Information Company, LLC.

Fig. 5: Identifying Fuse Block Components
Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
Microsoft
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Fig. 6: Fuse Block Legend
Courtesy of MAZDA MOTORS CORP.
TRUNK FUSE BOX
Trunk fuse block is located in passen
ger's side of the trunk. See Fig. 7.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
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Fig. 7: Locating Trunk Fuse Box
Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
Microsoft
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Fig. 8: Identifying Trunk Fuse Box Components & Legend
Courtesy of MAZDA MOTORS CORP.

1997 Mazda MX-5 Miata
1997 ELECTRICAL Fuses & Circuit Breakers - MX-5 Miata
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HEATER SYSTEM
1997 Heater System
DESCRIPTION & OPERATION
Heater case, mounted under center of instrument panel, contains airflow mode doors and air-mix (temperature
blend) doors. See Fig. 1
. Blower case, mounted under right side of instrument panel, contains blower motor,
blower resistor and fresh/recirculated air door. All doors are controlled manually from control panel by cable.
Blower resistors, located on bottom of blower case, determine blower speed. WARNING:To avoid injury from accidental air bag deployment, read and follow all
SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG
SYSTEM procedures in AIR BAG RESTRAINT SYSTEM article in the
ACCESSORIES/SAFETY EQUIPMENT section.
CAUTION: When battery is disconnected, radio will go into anti-theft protection
mode. Obtain radio anti-theft protection code from owner prior to
servicing vehicle.

1997 Mazda MX-5 Miata
HEATER SYSTEM 1997 Heater System

1997 Mazda MX-5 Miata
HEATER SYSTEM 1997 Heater System
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Fig. 1: Exploded View Of Heater Unit
Courtesy of MAZDA MOTORS CORP.
ADJUSTMENTS
AIRFLOW MODE DOOR
Set airflow mode control lever at vent position. Disconnect control cable at airflow mode door lever. See Fig.
1 . Extend airflow mode door lever until it stops. Attach control cable to door lever. Secure cable using clip.
Ensure control lever slides freely between defrost and vent positions.
AIR-MIX (TEMPERATURE BLEND) DOOR
Set temperature control lever at maximum hot setting. Disconnect control cable at air-mix door lever. See Fig.
1 . Extend air-mix door lever until it stops. Attach control cable to door lever. Secure cable using clip. Ensure
control lever slides freely between hot and cold settings.
FRESH/RECIRCULATED AIR DOOR
Set fresh/recirculated air control lever at fresh air setting. Disconnect control cable at fresh/recirculated air door
lever. Retract recirculated/fresh air door lever until it stops. Attach control cable to door lever. Secure cable
using clip. Ensure control lever slides freely between recirculated air and fresh air settings.
TESTING
BLOWER MOTOR CIRCUIT
1. Check 30-amp HEATER fuse in passenger compartment fuse block. If fuse is okay, go to next step. If
fuse is burnt, check for short circuit in wiring harness and repair as necessary. Replace fuse.
2. Turn ignition on. Turn blower switch to 4th position (high). Using voltmeter, backprobe Blue wire
terminal of blower motor connector on bottom of blower case. If battery voltage exists, go to next step. If
battery voltage is not present, repair wiring harness between circuit breaker or fuse and blower motor.
3. Ensure ignition is on. Backprobe Blue wire terminal of blower resistor 1-pin connector. If battery voltage
exists, go to next step. If battery voltage is not present, replace blower motor.
4. Backprobe Blue/White wire terminal, Blue/Red wire terminal, Blue/Green wire terminal and Blue/Yellow
wire terminal of blower resistor 4-pin connector. If battery voltage exists, go to next step. If battery
voltage is not present at any terminal, replace blower resistor.
5. Turn blower switch to 4th position (high). Backprobe Black wire terminal of blower switch connector. If
battery voltage is not present, go to next step. If battery voltage exists, repair Black wire between blower
switch and chassis
ground. WARNING:To avoid injury from accidental air bag deployment, read and follow all
SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG
SYSTEM procedures in AIR BAG RESTRAINT SYSTEM article in the
ACCESSORIES/SAFETY EQUIPMENT section.

1997 Mazda MX-5 Miata
HEATER SYSTEM 1997 Heater System
Microsoft
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