ON-BOARD DIAGNOSIS SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM) MALFUNCTION DIAGNOSIS FUNCTION


id091400601500


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.
am6xun00000791

On-board Diagnostic Function


Malfunction detection function

•  Detects overall malfunctions in the advanced keyless entry and push button start system-related parts.

DTC

Description

Mazda Modular Diagnostic System (M-MDS) display

B100B:11
Short to ground in steering lock unit ground circuit
B100B:15
Open circuit or short to power supply in steering lock unit ground circuit
B100C:11
Short to ground in steering lock unit power supply circuit
B100C:12
Short to power supply in steering lock unit power supply circuit
B1026:08
Receiving erratic signal from steering lock unit
B1026:51
Steering lock unit programming error
B1026:71
Steering lock unit malfunction
B1026:87
Communication error between keyless control module and steering lock unit
B1026:92
Incorrect operation of steering lock unit
B1026:96
Steering lock unit internal malfunction
B102B:51
No programmed transmitter
B108B:23
Short to ground in push button start 1 circuit
B108B:29
Mismatch state of push button start 1 and 2
B108C:23
Short to ground in push button start 2 circuit
B10C6:1F
Erratic signal of keyless antenna (exterior, rear)
B10C7:1F
Erratic signal of keyless antenna (interior, rear)
B10C9:1F
Erratic signal of keyless antenna (interior, front)
B10E7:11
Short to ground in IG1 relay circuit
B10E7:12
Short to power supply in IG1 relay circuit
B10E7:16
Low voltage in IG1 monitor input circuit
B10E7:17
High voltage in IG1 monitor input circuit
B112A:11
Short to ground in IG2 relay circuit
B112A:12
Short to power supply in IG2 relay circuit
B112A:16
Low voltage in IG2 monitor input circuit
B112A:17
High voltage in IG2 monitor input circuit
B1140:29*3
Erratic signal of starter interlock switch
B11FD:1F
Erratic signal of keyless antenna (exterior, LF)
B1210:1F
Erratic signal of keyless antenna (exterior, RF)
B1239:1F*4
Erratic signal of keyless antenna (interior, glove compartment)
C0040:29*2
Erratic signal of brake switch
P0560:16
Low voltage in power supply circuit (+B3)
P0560:17
High voltage in power supply circuit (+B3)
P0615:11
Short to ground in starter relay circuit
P0615:12
Short to power supply in starter relay circuit
P0615:13
Open circuit in starter relay circuit
P081C:62*2
Mis-match signal between CAN and P range switch
P081D:62*1
Mis-match signal between CAN and neutral switch
P0830:23*1
Short to ground in CPP switch circuit
P0850:29*2
Erratic signal of TR switch
P1708:29*1
Erratic signal of CPP switch and/or starter interlock switch
P1794:16
Low voltage in power supply circuit (+B2)
P1794:17
High voltage in power supply circuit (+B2)
U0001:88
Keyless control module communication error (HS-CAN)
U0028:87
Communication error with BCM
U0100:00
Communication error with PCM
U0101:00*2
Communication error with TCM
U0121:00
Communication error with DSC HU/CM
U0401:68
Receiving erratic data from PCM
U0415:68
Receiving erratic data from DSC HU/CM
U201F:11
Short to ground in keyless receiver circuit
U2100:00
Incomplete configuration
U3000:49
Keyless control module internal malfunction
U3000:96
Keyless control module internal malfunction
U3003:16
Low voltage in power supply circuit (+B1)
U3003:17
High voltage in power supply circuit (+B1)
U3004:11
Short to ground in ACC relay circuit
U3004:12
Short to power supply in ACC relay circuit
U3004:16
Low voltage in ACC monitor input circuit
U3004:17
High voltage in ACC monitor input circuit

*1  :MTX
*2  :ATX
*3  :MZR 2.0 DISI i-stop
*4  :Applied VIN (assumed):
•  JMZ BLA2A60# 100001—132284
•  JMZ BLA2G60# 100001—132284
•  JMZ BL12Z20# 100001—132284
•  JMZ BL12Y20# 100001—132284
•  JMZ BL14Z20# 100001—132284
•  JMZ BLA4360# 100001—132284
•  JMZ BLA4F70# 100001—132284
•  JMZ BLA4G60# 100001—132284
•  JMZ BLA4C60# 100001—132284
•  JMZ BLA4A60# 100001—132284
•  JMZ BL14Y20# 100001—132284
•  JM7 BL04F**# 100001—133678
•  JMZ BLA2C60# 100001—132284
•  JMZ BLA2F70# 100001—132284
•  JMZ BL12Z50# 100001—132284
•  JMZ BL12F70# 100001—132284
•  JMZ BL12F60# 100001—132284
•  JMZ BL14Z50# 100001—132284
•  JMZ BL14F70# 100001—132284
•  JMZ BL14F60# 100001—132284
•  JM7 BL12Z**# 100001—133678
•  JM7 BL22Z**# 100001—133678
•  JM7 BL14Z**# 100001—133678
•  JM7 BL24Z**# 100001—133678
•  JM6 BL1051*0 100001—133678
•  JM6 BL10Z1*0 100001—133678
•  JM6 BL10F1*0 100001—133678
•  JM6 BL1031*0 100001—133678

Vehicles With Immobilizer System

DTC

Description

Mazda Modular Diagnostic System (M-MDS) display

Security light flashing pattern

B10D5:13
Coil antenna malfunction
B10D7:05
Key ID number error
B10D7:51
Unprogrammed key ID number
B10D7:81
Receiving erratic serial data
B10D7:94
Key ID number error
B10D8:00
Shortage of programmed key
B10D9:87
Communication error with coil antenna
B10DA:51
Communication error with PCM (Data transfer failure)
B10DA:62
Communication error with PCM (Data mis-match)
B10E6:11
Not illuminated
Short to ground in coil antenna power supply circuit
B10E6:12
Not illuminated
Short to power supply in coil antenna power supply circuit
U0100:87
Communication error with PCM (No response)


Fail-safe Function

Warning
•  If the vehicle is left as it is for a specified time limit or more, or the ignition is operated a specified number of times or more while the fail-safe function is operating, the ignition will remain stuck in off and it is possible that the engine cannot be started. Therefore, perform the malfunction diagnosis while the engine can be started. In addition, after having performed the malfunction diagnosis, verify that this DTC is not detected with the steering wheel locked. If the DTC is not detected, the system returns to normal from the fail-safe function.
Note
•  When the system enters the fail-safe function, the keyless warning light and the push button start indicator light illuminate as follows:
―  When the clutch pedal (MTX) or the brake pedal (ATX) is depressed while the ignition is switched off, both lights illuminate (red).
―  When the ignition is switched to ACC or ON, both lights illuminate (red) constantly.
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