Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Mazda Tribute ES, FWDFACTORY OEM SERVICE PROCEDURE
System Tests: Notes
GENERAL TEST INDEX
| Application | Test |
|---|---|
| Vehicle Reference Voltage | Used To Diagnose Vehicle Reference (VREF) malfunctions. |
| Malfunction Indicator Light | Used To Diagnose Malfunction Indicator Light (MIL) malfunctions. |
| Intermittent | Used to diagnose intermittent concerns. |
| Fuel Delivery System | Used to diagnose fuel delivery concerns |
| PCV System | Used to diagnose PCV system. |
| PCM Power Relay | Used to diagnose PCM Power Relay failure. |
| Fuel Pressure Regulator | Used to diagnose fuel pressure regulator function. |
| Fuel Pump Inspection | Used to diagnose fuel pump function. |
| Fuel Line/Fuel Pressure Hold Inspection | Used to diagnose fuel line pressure and pressure hold. |
| Fuel Injector Inspection | Used to diagnose fuel injector concerns. |
| EGR Valve | Used to diagnose EGR valve. |
| EGR Vacuum Regulator Solenoid Inspection | Used to diagnose EGR vacuum regulator solenoid. |
| Differential Pressure Feedback EGR | Used to diagnose Differential Pressure Feedback EGR (DPFE) sensor. |
| No Start | Used to diagnose No Start condition. |
| Ignition Scope Test | Used to diagnose ignition coil malfunction and misfires. |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.