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.
2011 Mazda 6 s Touring PlusFACTORY OEM SERVICE PROCEDURE
Immobilizer System (Keyless Entry System) DTCS
DTC CHART (IMMOBILIZER SYSTEM - KEYLESS ENTRY SYSTEM)
| DTC | Detection condition | Refer to | |
|---|---|---|---|
| Instrument cluster | PCM | ||
| B10D9:87 | P1260:00 | No detected communication with coil antenna | (See SECURITY LIGHT: 11, DTC: B10D9:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D5:13 | P1260:00 |
|
(See SECURITY LIGHT: 12, DTC: B10D5:13/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D7:05 | P1260:00 | Key ID number program error | (See SECURITY LIGHT: 13, DTC: B10D7:05/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D7:94 | P1260:00 | Key ID number data cannot be read | (See SECURITY LIGHT: 13, DTC: B10D7:94/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D7:81 | P1260:00 | Instrument cluster cannot read key ED number data normally | (See SECURITY LIGHT: 14, DTC: B10D7:81/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D7:51 | P1260:00 | Instrument duster has detected unprogrammed key ID number | (See SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| U0100:87 | P1260:00 | Communication error between instrument duster and PCM f no response) | (See SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10D8:00 | P1260:00 | Only one key or no key has been programmed | (See SECURITY LIGHT: 21, DTC: B10D8:00/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10DA:51 | P1260:00 | Communication error between instrument duster and PCM (data transfer failure) | (See SECURITY LIGHT: 22, DTC: B10DA:51/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| B10DA:62 | P1260:00 | ID number data in instrument cluster and PCM do not match | (See SECURITY LIGHT: 23, DTC: B10DA:62/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] .) |
| U0001:88 | U0073:00 | Instrument cluster communication error (HS-CAN) | |
| U0100:00 | - | Communication error with PCM | |
Factory Service Tools
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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.