ON-BOARD DIAGNOSIS SYSTEM (IMMOBILIZER SYSTEM) MALFUNCTION DIAGNOSIS FUNCTION

id091400601300

•  The immobilizer system is provided with an on-board diagnostic function
•  The on-board diagnostic function of the immobilizer system is automatically performed whenever the ignition is switched from off (ACC) to ON (engine start).
•  If the results of the malfunction diagnosis show a malfunction in the immobilizer system, the security light indicates a DTC. At the same time, DTCs are stored in the PCM and keyless control module. The stored DTCs can be verified using the Mazda Modular Diagnostic System (M-MDS).
Caution
•  Use the Mazda Modular Diagnostic System (M-MDS) 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).
•  Immobilizer system-related DTCs stored in the keyless control module and PCM are deleted when the ignition is switched from off (ACC) to ON (engine start).
Note
•  If two or more malfunctions are detected as a result of the on-board diagnosis, only the DTC with the lowest number of those detected will be indicated by the security light. However, multiple DTCs are stored at the same time.
•  If two or more immobilizer system DTCs are verified, first repair the part indicated by the security light displayed DTC. After repairing one location, switch the ignition from LOCK to ON and perform the immobilizer system on-board diagnostic function.

Advanced Keyless Entry And Push Button Start System


DTC 7-digit code definition

•  When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.
am6xun00000787


DTC table

Note
•  In the approx. 1 min after detecting a malfunction and before displaying the DTC, the security light will illuminate or flash the following patterns:

Security light flashing pattern

(Before indicating a DTC)

DTC
11, 12, 13, 14, 15, 16
21, 22, 23

DTC

Description

Security light flashing pattern

Keyless warning light

Push button start warning light

Mazda Modular Diagnostic System (M-MDS) display*

Keyless control module

PCM
11
×
×
B10D9:87
P1260:00
Communication error with coil antenna
12
×
×
B10D5:13
P1260:00
Coil antenna malfunction
13
–
–
B10D7:05
P1260:00
Key ID number error
B10D7:94
P1260:00
14
–
–
B10D7:81
P1260:00
Receiving erratic serial data
15
–
–
B10D7:51
P1260:00
Unprogrammed key ID number
16
–
–
U0100:87
P1260:00
Communication error with PCM (No response)
21
×
–
B10D8:00
P1260:00
Shortage of programmed key
22
–
–
B10DA:51
P1260:00
Communication error with PCM (Data transfer failure)
23
–
–
B10DA:62
P1260:00
Communication error with PCM (Data mis-match)
–
×
×
B10E6:11
–
Short to ground in power supply circuit of coil antenna
–
×
×
B10E6:12
–
Short to power supply in power supply circuit of coil antenna
–
×
×
U0001:88
U0073:00
Keyless control module communication error (HS-CAN)
–
×
–
U0100:00
–
Communication error with PCM
–
×
×
U3000:49
–
Keyless control module internal malfunction
–
×
×
U3000:96
–
Keyless control module internal malfunction

*  :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.


Keyless Entry System


DTC 7-digit code definition

•  When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.
am6xun00000788


DTC table

Note
•  In the approx. 1 min after detecting a malfunction and before displaying the DTC, the security light will illuminate or flash the following patterns:

Security light flashing pattern

(Before indicating a DTC)

DTC
11, 12, 13, 14, 15, 16
21, 22, 23

DTC

Description

Security light flashing pattern

Mazda Modular Diagnostic System (M-MDS) display*

Instrument cluster

PCM
11
B10D9:87
P1260:00
Communication error with coil antenna
12
B10D5:13
P1260:00
Coil antenna malfunction
13
B10D7:05
P1260:00
Key ID number error
B10D7:94
P1260:00
14
B10D7:81
P1260:00
Receiving erratic serial data
15
B10D7:51
P1260:00
Unprogrammed key ID number
16
U0100:87
P1260:00
Communication error with PCM (No response)
21
B10D8:00
P1260:00
Shortage of programmed key
22
B10DA:51
P1260:00
Communication error with PCM (Data transfer failure)
23
B10DA:62
P1260:00
Communication error with PCM (Data mis-match)
Not illuminated
U0001:88
U0073:00
Module communication error (HS-CAN)
Not illuminated
U0100:00
–
Communication error with PCM
Not illuminated
U3000:41
–
Instrument cluster internal malfunction

*  :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.