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.
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HOMESERVICE MANUALSMAZDA20066 S, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALGAUGESINSTRUMENTATION/DRIVER INFOINSTRUMENT CLUSTER INPUT/OUTPUT CHECK MODECHECK CODE TABLE
2006 Mazda 6 s, 4D Sedan, Standard
Check Code Table
2006 Mazda 6 s, 4D Sedan, StandardSECTION Check Code Table
CHECK CODE CHART
| Check code | Checked item | Related item |
|---|---|---|
| 01 | Buckle switch (driver's side) | Seat belt warning buzzer |
| 04 | Door switch |
|
| 08 | TNS relay |
|
| 12 | Speedometer | Speedometer |
| 13 | Tachometer | Tachometer |
| 14 | Buzzer | Buzzer |
| 16 | Fuel-level warning light | Fuel-level warning light |
| 22 | Fuel gauge sender unit | Fuel gauge |
| 23 | Fuel gauge | Fuel gauge |
| 25 | Water temperature gauge | Water temperature gauge |
| 26 | LCD | LCD |
| 31 | Key reminder switch | Key reminder warning buzzer |
| 33 | Hazard warning switch | Turn and hazard indicator buzzer |
| 55 | Dimmer cancel switch | Instrument cluster illumination |
| 58 | Buckle switch (passenger's side) | Seat belt warning buzzer |
| 59 | Fuel system signal | Fuel gauge |
NOTE:
- Check codes which are not listed may be indicated, but they cannot be inspected.
- The check codes are displayed in numerical order. (While performing the inspection, if you want to inspect a check code of which the number is smaller than the code number you are currently inspecting, terminate the check mode then repeat the inspection from the beginning).
- If a speed signal is input to the instrument cluster (the front wheels are rotated) the input/output check mode will be cancelled.
- The check codes can be fast-forwarded by pushing and holding the odometer/tripmeter switch for 1 second or more.
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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.