1990 Mazda Protege Service and Repair Manual

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Factory-Grade Data

1990 Mazda Protege service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • GT Sedan 4-Door
  • 4WD Sedan 4-Door
  • SE Sedan 4-Door
  • LX Sedan 4-Door

Engines covered

  • 1.8L 1839CC l4 GAS DOHC Naturally Aspirated
  • 1.8L 1839CC l4 GAS SOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

1990 Mazda Protege Recalls & Complaints

NHTSA #15V67400019/10/2015Component: ELECTRICAL SYSTEM:IGNITION:SWITCH

Mazda North American Operations (Mazda) is recalling certain model year 1989-1998 MPV, 1990-1995 323, 1990-1998 Protege, 1992-1993 MX-3, 1993-1995 929, 1993-1997 MX-6, and 1993-1998 626 vehicles. In

Consequence

If the ignition switch overheats there would be an increased risk of a fire.

Remedy

Mazda will notify owners, and dealers will replace the ignition switch, free of charge. The recall

TSB #10213425

Speedometer replacement procedure

TSB #10154879

In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS shortly and Workshop Manual procedures will be revised gradually.

TSB #10153339

In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to co

TSB #10148072

In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to co

TSB #10144333

In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to co

TSB #10118467

In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer?s responsibility to co

TSB #10098367

IN ACCORDANCE WITH FEDERAL REGULATIONS, FOLLOW THE PROCEDURE LISTED BELOW WHEN REPLACING A SPEEDOMETER.NOTE:MAZDA VEHICLES ARE MANUFACTURED WITH TAMPER-PROOF SPEEDOMETERS.WHEN A SPEEDOMETER IS REPLACED, THE NEW SPEEDOMETER WILL READ ZERO (0

TSB #10009427

BATTERY TEST PROCEDURE REQUIREMENTS. *TT

Showing the 8 most recent of 22 technical service bulletins on file with NHTSA.

19971028Component: SEAT BELTSCrash reported1 injured

WHILE STOPPED, VEHICLE WAS REARENDED BY MOVING VEHICLE THAT WAS TRAVELING 35 MPH. DRIVER FELL FORWARD/BACKWARD, SEATBACK RECLINED, LEFT SIDE OF SEAT BROKE, MOTORIZED SHOULDER BELT DID NOT RETRACT. D

19971028Component: SEATS:FRONT ASSEMBLY:RECLINERCrash reported1 injured

WHILE STOPPED, VEHICLE WAS REARENDED BY MOVING VEHICLE THAT WAS TRAVELING 35 MPH. DRIVER FELL FORWARD/BACKWARD, SEATBACK RECLINED, LEFT SIDE OF SEAT BROKE, MOTORIZED SHOULDER BELT DID NOT RETRACT. D

19951120Component: SEAT BELTS:FRONT:BUCKLE ASSEMBLYCrash reported1 injured

DRIVER'S SIDE SEAT BELT FAILED TO RESTRAIN OCCUPANT IN AN ACCIDENT. TT CONSUMER WAS INJURED IN ACCIDENT. *SLC

19951120Component: SEAT BELTS:FRONT:RETRACTORCrash reported1 injured

DRIVER'S SIDE SEAT BELT FAILED TO RESTRAIN OCCUPANT IN AN ACCIDENT. TT CONSUMER WAS INJURED IN ACCIDENT. *SLC

20020820Component: VEHICLE SPEED CONTROL:ACCELERATOR PEDALCrash reported

WHEN BACKING OUT OF DRIVEWAY PLACED CAR IN DRIVE AND DEPRESSED GAS, AND VEHICLE LURCHED FORWARD AND CRASHED. GAS PEDAL WAS STUCK TO THE FLOOR.*AK

Showing the 5 most serious of 45 complaints filed with NHTSA.

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