ON-BOARD DIAGNOSIS SYSTEM FUNCTION [KEYLESS ENTRY SYSTEM]

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DTC table

Caution

•  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.

Note

•  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.

Note

•  In the approx. 1 min after detecting a malfunction and before indicating the DTC, the security light illuminates or flashes in the following patterns:

Security light flashing pattern (Before indicating a DTC)	DTC
	11, 12, 13, 14, 15, 16
	21, 22, 23

DTC				Detection Condition
Security light flashing pattern		Mazda Modular Diagnostic System (M-MDS) display*
		Instrument cluster	PCM
11		B10D9:87	P1260:00	No detected communication with the coil antenna.
12		B10D5:13	P1260:00	•  Coil antenna malfunction •  The PCM determined a malfunction in the coil antenna even though it is normal.
13		B10D7:05	P1260:00	Key ID number program error
		B10D7:94	P1260:00	The key ID number data cannot be read.
14		B10D7:81	P1260:00	The instrument cluster cannot read key ID number data normally.
15		B10D7:51	P1260:00	The instrument cluster has detected an unprogrammed key ID number.
16		U0100:87	P1260:00	Communication error between the instrument cluster and the PCM (no response)
21		B10D8:00	P1260:00	Only one key has been programmed.
22		B10DA:51	P1260:00	Communication error between the instrument cluster and the PCM (data transfer failure)
23		B10DA:62	P1260:00	Communication error between the instrument cluster and the PCM (condition mismatch)
Not illuminated		U0001:88	U0001:88	Module communication error (HS-CAN)
		U0100:00	-	PCM communication error

With theft-deterrent system

PID/DATA Monitor Table

―  Number of individual keys programmed to the vehicle.

Note

•  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.

PID name (definition)	Detection Condition
NUMKEYS (Number of key ID numbers programmed in the instrument cluster)	Number of programmed key ID numbers: 0–8

With thft-deterrent system