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 MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDTC INDEXENGINE IMMOBILIZER DTCSIMMOBILIZER SYSTEM WITH KEYLESS ENTRY SYSTEM
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Immobilizer System With Keyless Entry System
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Immobilizer System With Keyless Entry System
ENGINE IMMOBILIZER DIAGNOSTIC TROUBLE CODE (DTC) LIST - WITH KEYLESS ENTRY SYSTEM
| DTC | Description |
|---|---|
| DTC B1681) | Coil signal is not received. |
| DTC B2103) | Coil failure. |
| DTC B1600) | ID number signal is not received. |
| DTC B2431) | Transponder programming failure. |
| DTC B1602) | PCM received invalid format of ID number from transponder. |
| DTC B1601) | PCM received incorrect ID number from key (transponder). |
| DTC B1213) | Number of valid keys is below minimum. |
| DTC B1342) | PCM is defective. |
RENDER: 1.0x
NO RELATED
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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.