ON-BOARD DIAGNOSIS SYSTEM FUNCTION [KEYLESS ENTRY SYSTEM]
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DTC table
• The immobilizer system is provided with an on-board diagnostic function.
• On-board diagnosis of the immobilizer system occurs automatically when the ignition is switched to the off to the ON (START) position.
• If the results of the malfunction diagnosis show a malfunction in the immobilizer system, the security light indicates a DTC. DTCs are simultaneously saved in the instrument cluster and PCM. The number of saved DTCs can be verified using the Mazda Modular Diagnostic System (M-MDS).
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Caution
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• Always use the Mazda Modular Diagnostic System (M-MDS) or equivalent to verify DTCs even if the security light indicates a DTC. If the security light itself has a malfunction, it is possible that a DTC may not be indicated properly. In addition, there are DTCs which cannot be verified using the security light, and can only be verified using the Mazda Modular Diagnostic System (M-MDS).
• DTCs for the immobilizer system that are stored in the instrument cluster and PCM are cleared when the ignition switch is turned from the ON to the LOCK (ACC) position.
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Note
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• If two or more malfunctions are detected as a result of on-board diagnosis, only the DTC with the lowest number of those detected will be indicated by the security light. The PCM and instrument cluster store multiple DTCs at the same time.
• If two or more immobilizer system DTCs are detected, first repair the part for the DTC indicated by the security light. After repairing one location, turn the ignition switch from the LOCK to the ON position and perform the immobilizer system on-board diagnostic function.
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Note
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• In the approx. 1 min after detecting a malfunction and before indicating the DTC, the security light illuminates or flashes in the following patterns:
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Security light flashing pattern
(Before indicating a DTC)
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DTC
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11, 12, 13, 14, 15, 16
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21, 22, 23
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DTC
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Detection Condition
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Security light flashing pattern
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Mazda Modular Diagnostic System (M-MDS) display*
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Instrument cluster
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PCM
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11
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B10D9:87
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P1260:00
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No detected communication with coil antenna.
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12
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B10D5:13
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P1260:00
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• Coil antenna malfunction
• PCM determined a malfunction in coil antenna even though it is normal.
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13
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B10D7:05
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P1260:00
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Key ID number program error
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B10D7:94
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P1260:00
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Key ID number data cannot be read.
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14
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B10D7:81
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P1260:00
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Instrument cluster cannot read key ID number data normally.
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15
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B10D7:51
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P1260:00
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Instrument cluster has detected unprogrammed key ID number.
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16
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U0100:87
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P1260:00
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Communication error between instrument cluster and PCM (no response)
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21
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B10D8:00
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P1260:00
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Only one key or no key has been programmed.
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22
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B10DA:51
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P1260:00
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Communication error between instrument cluster and PCM (data transfer failure)
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23
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B10DA:62
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P1260:00
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ID number data in instrument cluster and PCM do not match.
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Not illuminated
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U0001:88
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U0073:00
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Module communication error (HS-CAN)
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U0100:00
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PCM communication error
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* :The letters at the beginning of each DTC are only displayed when using the Mazda Modular Diagnostic System (M-MDS), and refer to the following: B= Body system, P= Powertrain system, U= Network communication system.
PID/DATA Monitor Table
• The following item can be verified
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― Number of individual keys programmed to the vehicle.
• Use the Mazda Modular Diagnostic System (M-MDS) or equivalent to read the PID/data monitor.
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Note
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• The engine cannot be started unless two or more keys are programmed to the vehicle.
• A maximum of eight keys can be programmed for one vehicle.
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PID name (definition)
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Detection Condition
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NUMKEYS
(Number of key ID numbers programmed in the instrument cluster)
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Number of programmed key ID numbers: 0–8
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