DTC Table [Immobilizer System (Keyless Entry System)]

WARNING: This page is about a different car, the 2007 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

DTC REFERENCE FOR IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)

DTC

Detection condition

Security light flashing pattern

M-MDS display⁽¹⁾

Instrument cluster

PCM

Courtesy of MAZDA MOTORS CORP.

B1681

DTC P1260

No detected communication with the coil antenna

Courtesy of MAZDA MOTORS CORP.

B2103

DTC P1260

Coil antenna malfunction
The PCM determined a malfunction in the coil antenna even though it is normal.

Courtesy of MAZDA MOTORS CORP.

B1600

DTC P1260

The key ID number data cannot be read.

B2431

DTC P1260

Key ID number registration error

Courtesy of MAZDA MOTORS CORP.

B1602

DTC P1260

The instrument cluster cannot read key ID number data normally.

Courtesy of MAZDA MOTORS CORP.

B1601

DTC P1260

The instrument cluster has detected unregistered key ID number.

Courtesy of MAZDA MOTORS CORP.

U2510

DTC P1260

Communication error between the instrument cluster and the PCM (no response)

U1147

DTC P1260

Communication error between the instrument cluster and the PCM (mismatched conditions)

Courtesy of MAZDA MOTORS CORP.

B1213

DTC P1260

Only one key ID number is registered.

Courtesy of MAZDA MOTORS CORP.

B2141

DTC P1260

Communication error between the instrument cluster and the PCM (data transfer error)

Courtesy of MAZDA MOTORS CORP.

B2139

DTC P1260

ID number data in the PCM and the instrument cluster do not match.

Not illuminated

B1342

Instrument cluster malfunction

⁽¹⁾	The letters at the beginning of each DTC are only displayed when using the M-MDS, and refer to the following: B= Body system, P= Powertrain system, U= Network communication system.