SECURITY LIGHT: 12, DTC: B10D5:13/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5353100

DTC

Security light flashing pattern

12

Coil antenna malfunction

M-MDS display

Instrument cluster

B10D5:13

PCM

P1260:00
DETECTION CONDITION
•  PCM or instrument cluster determines a malfunction in coil antenna.
POSSIBLE CAUSE
•  Coil antenna connector or terminals malfunction
•  Instrument cluster connector or terminals malfunction
•  Coil antenna malfunction
•  PCM malfunction
•  Instrument cluster malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
INSPECT COIL ANTENNA CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the coil antenna connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 5.
No
Go to the next step.
2
INSPECT INSTRUMENT CLUSTER CONNECTOR AND TERMINALS
•  Disconnect the instrument cluster connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 5.
No
Go to the next step.
3
VERIFY COIL ANTENNA MALFUNCTION
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the instrument cluster and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the coil antenna, then go to the next step.
(See COIL ANTENNA REMOVAL/INSTALLATION.)
No
Go to Step 6.
4
VERIFY PCM MALFUNCTION
•  Clear the DTC from the instrument cluster and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [LF, L5].)
(See PCM REMOVAL/INSTALLATION [ZY, Z6].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6) (EURO5 emission level)].)
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
No
Go to Step 6.
5
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the instrument cluster and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the instrument cluster, then go to the next step.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No
Go to the next step.
6
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)
No
DTC troubleshooting completed.