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.
2005 Mazda Tribute s, FWDFACTORY OEM SERVICE PROCEDURE
General Test Index
GENERAL TEST INDEX
| NO. | NAME | TEST | PAGE |
|---|---|---|---|
| 1 | VREF | Used to diagnose VREF supply malfunctions. | TEST 1: VEHICLE REFERENCE VOLTAGE (VREF) . |
| 2 | MIL | Used to diagnose MIL malfunctions. | TEST 2: MALFUNCTION INDICATOR LAMP (MIL) . |
| 3 | Intermittent | Used to diagnose intermittent concerns. | TEST 3: INTERMITTENT . |
| 4 | Fuel Delivery | Used to diagnose fuel delivery concerns. | TEST 4: FUEL DELIVERY SYSTEM . |
| 5 | PCV | Used to diagnose PCV system. | TEST 5: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM . |
| 6 | EEC Power Relay | Used to diagnose Electronic Engine Control Power Relay failure. | TEST 6: PCM POWER RELAY . |
| 7 | Fuel Pressure Regulator | Used to diagnose fuel pressure regulator function. | TEST 7: FUEL PRESSURE REGULATOR . |
| 8 | Fuel Pump Inspection | Used to diagnose fuel pump function. | TEST 8: FUEL PUMP INSPECTION . |
| 9 | Fuel Pressure Inspection | Used to diagnose fuel line pressure and pressure hold. | TEST 9: FUEL LINE/FUEL PRESSURE HOLD INSPECTION . |
| 10 | Fuel Injector Inspection | Used to diagnose fuel injector concerns. | TEST 10: FUEL INJECTOR INSPECTION . |
| 11 | EGR | Used to diagnose EGR valve. | TEST 11: EGR VALVE - VACUUM . |
| 12 | EGR vacuum regulator | Used to diagnose EGR vacuum regulator solenoid. | TEST 12: EGR VACUUM REGULATOR (EGRVR) SOLENOID INSPECTION . |
| 13 | DPFE | Used to diagnose Differential Pressure Feedback EGR sensor. | TEST 13: DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFE) SENSOR . |
| 14 | No Start | Used to diagnose No Start condition. | TEST 14: NO START . |
| 15 | Ignition Scope Test | Used to diagnose ignition coil malfunction and misfires. | TEST 15: IGNITION SCOPE TEST . |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.