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.
No. 7 Cannot Preset (Preset Function Does Not Operate) [Radio]: Notes
2011 Mazda CX-7 i SV, 2.5 5SECTION Notes
POSSIBLE DTC AND POSSIBLE CAUSE - NO. 7 CANNOT PRESET (PRESET FUNCTION DOES NOT OPERATE - RADIO)
| 7 | Cannot preset (preset function does not operate) | ||
|---|---|---|---|
| Possible DTC | Using the M-MDS | B1022:07 | |
| Without using M-MDS (On-board diagnostic test mode) | Audio unit | 21:Er19 | |
| Car-navigation unit | Device code 21/error code 19 | ||
| Possible cause |
|
||
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.