ON-BOARD DIAGNOSIS SYSTEM FUNCTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]


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On-board Diagnostic Function


Malfunction Detection Function

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


Display Function

•  If any malfunction is detected, the keyless warning light (red) in the instrument cluster illuminates to inform the driver of a system malfunction.


Memory Function

•  Stores malfunctions detected by the malfunction detection function as DTCs in the keyless control module. The stored DTCs are not cleared even if the ignition is switched to the off position or the negative battery cable is disconnected.

×:Applicable

DTC

Detection Condition

Fail-safe Function

Mazda Modular Diagnostic System (M-MDS) display

B100B:11
Steering lock unit ground circuit voltage less than threshold is detected for 0.2 s, while the circuit is not active
×
B100B:15
Steering lock unit ground circuit voltage higher than threshold is detected for 0.2 s
 
B100C:11
Steering lock unit power supply circuit voltage less than threshold is detected for 0.2 s, while the circuit is active
 
B100C:12
Steering lock unit power supply circuit voltage higher than threshold is detected for 0.2 s, while the circuit is not active
×
B1026:08
Keyless control module receive error ID signal from steering lock unit
 
B1026:51
•  Steering lock unit programming error
•  Steering lock unit is not programmed
 
B1026:62
Keyless control module receive mismatch signal between unlock signal and communication signal from steering lock unit
×
B1026:71
Unable to lock steering column
 
B1026:87
Communication error between keyless control module and steering lock unit
 
B1026:92
Keyless control module receive position signal indicating a serious malfunction from steering lock unit
×
B1026:96
Keyless control module receive signal of steering lock unit internal fault
 
B102B:51
There is no record that an advanced key was programed (programming is never performed in past)
 
B108B:23
120 s have elapsed since push button start 1 signal was detected
 
B108B:29
Mismatch state of push button start 1 and 2
 
B108C:23
120 s have elapsed since push button start 2 signal was detected
 
B10A5:12
Keyless beeper circuit voltage higher than threshold (2.2—6.5 V), while the circuit is not active
 
B10C1:11
Touch sensor (LF) circuit voltage less than threshold (2.2—6.5 V) is detected for 1 s while the circuit is active
 
B10C1:12
Touch sensor (LF) circuit voltage higher than threshold (2.2—6.5 V) is detected for 1 s while the circuit is not actives
 
B10C3:11
Touch sensor (RF) circuit voltage less than threshold (2.2—6.5 V) is detected for 1 s while the circuit is active
 
B10C3:12
Touch sensor (RF) circuit voltage higher than threshold (2.2—6.5 V) is detected for 1 s while the circuit is not active
 
B10C6:1F
Cannot receive signal correctly from keyless antenna (exterior, rear)
 
B10C7:1F
Cannot receive signal correctly from keyless antenna (interior, rear)
 
B10C8:1F
Cannot receive signal correctly from keyless antenna (interior, center)
 
B10C9:1F
Cannot receive signal correctly from keyless antenna (interior, front)
 
B10D1:23
Detect request switch (LF) ON signal while driving
 
B10D3:23
Detect request switch (RF) ON signal while driving
 
B10E7:11
IG1 relay output circuit voltage less than threshold (2.2—6.5 V) is detected for 0.1 s, while the circuit is active
 
B10E7:12
IG1 relay output circuit voltage higher than threshold (2.2—6.5 V) is detected for 0.1 s, while the circuit is not active
 
B10E7:16
IG1 monitor input circuit voltage less than threshold (2.2—6.5 V) is detected for 1 s, while IG1 relay output circuit is active
 
B10E7:17
IG1 monitor input circuit voltage higher than threshold (2.2—6.5 V) is detected for 1 s, while IG1 relay output circuit is not active
 
B112A:11
Voltage lower than the specification (2.2—6.5 V) is detected for 0.1 s with the IG2 relay output circuit operating
 
B112A:12
Voltage higher than the specification (2.2—6.5 V) is detected for 0.1 s with the IG2 relay output circuit not operating
 
B112A:16
Voltage lower than the specification (2.2—6.5 V) is detected in the IG2 monitor input circuit for 1 s with the IG2 relay output circuit operating
 
B112A:17
Voltage higher than the specification (2.2—6.5 V) is detected in the IG2 monitor input circuit for 1 s with the IG2 relay output circuit not operating
 
B113E:11
Trunk lid opener switch (4SD) /liftgate opener switch (5HB, WGN) circuit voltage less than 1 V is detected for 1 s, while ignition switch is ON
 
B11E8:11
Cannot receive signal correctly from keyless antenna (exterior, LF)
 
B11E8:12
Cannot receive signal correctly from keyless antenna (exterior, RF)
 
B11FD:1F
Voltage lower than the specification (2.2—6.5 V) is detected for 0.04 s with the ABS driver operating
 
B1210:1F
Voltage higher than the specification (2.2—6.5 V) is detected for 0.04 s with the ABS driver not operating
 
B11C4:23
Brake switch and brake switch2 link malfunction
 
C0040:29
A steering lock unit power supply circuit voltage of less than 9 V is detected for 10 s
 
P0560:16
A steering lock unit power supply circuit voltage higher than 16 V is detected for 0.5 s while the engine is running
 
P0560:17
Detect that the voltage of starter monitor is lower than the specification.
•  Starter monitor input circuit voltage less than 4.3 V is detected under the following conditions:
―  IG1 relay output circuit is not active
―  Shift lever in P range
 
P0615:11
Detect that the voltage of starter relay is higher than the specification.
•  Feedback voltage of starter relay output circuit higher than 6 V is detected under the following conditions:
―  IG1 relay output circuit is not active
―  Clutch is depressed
 
P0615:12
Detect the mismatch voltage between starter relay and starter monitor.
•  Feedback voltage of starter relay output circuit less than 4.3 V and starter monitor input circuit higher than 4.3 V is detected under the following conditions:
―  IG1 relay output circuit is not active
―  Shift lever in P range
 
P0615:13
CAN and P range switch signals do not correspond, while ignition switch is ON
 
P081C:62
•  Neutral switch is detected as continuously ON in spite of vehicle speed increasing from 0 km/h {0 mph} to 10 km/h {6.2 mph}
•  CAN and neutral switch signals do not correspond
 
P081D:62
Clutch pedal position (CPP) switch signal is detected for 600 s
 
P0830:23
•  CAN and inhibitor switch signals do not correspond, while ignition is ON (engine off).
―  Starter monitor input circuit voltage less than 4.3 V under the following conditions:
•  IG1 relay output circuit is active
•  Shift lever is D range
•  Engine is not running
 
P0850:29
Detect the mismatch between clutch switch and starter interlock switch.
•  Clutch monitor input circuit voltage higher than 4.3 V under the following conditions:
―  IG1 relay output circuit is not active
―  Clutch is depressed
 
P1708:29
START power supply circuit voltage of less than 9 V is detected for 10 s
 
P1794:16
START power supply circuit voltage higher than 16 V is detected for 0.5 s while the engine is running
 
P1794:17
Keyless control module communication error (HS-CAN)
 
U0001:88
No communication with BCM
 
U0028:87
Communication error with PCM
 
U0100:00
Communication error with TCM
 
U0101:00
Communication error with ABS/TCS HU/CM or DSC HU/CM
 
U0121:00
Keyless control module receive engine state or engine speed data from PCM, while steering is locked
 
U0401:68
Communication error with keyless receiver
 
U201F:00
No communication with keyless receiver
 
U201F:13
Configuration is not completed
 
U2100:00
Keyless control module internal malfunction
 
U3000:41
Keyless control module internal malfunction
 
U3000:49
ROOM power supply circuit voltage 4 V—9 V is detected for 10 s
×
U3003:16
ROOM power supply circuit voltage higher than 16 V is detected for 0.5 s while the engine is running
 
U3003:17
ACC relay output circuit voltage less than threshold (2.2—6.5 V) is detected for 1 s, while the circuit is active
 
U3004:11
ACC relay output circuit voltage higher than threshold (2.2—6.5 V) is detected for 1 s, while the circuit is not active
 
U3004:12
ACC monitor input circuit voltage less than threshold (2.2—6.5 V) is detected for 1 s, while ACC relay output circuit is active
 
U3004:16
ACC monitor input circuit voltage higher than threshold (2.2—6.5 V) is detected for 1 s, while ACC relay output circuit is not active
 
U3004:17
Steering lock unit ground circuit voltage less than threshold is detected for 0.2 s, while the circuit is not active
 

With Immobilizer System

DTC

Detection Condition

Mazda Modular Diagnostic System (M-MDS) display

Security light flashing pattern

B10D5:13
•  Coil antenna malfunction
•  PCM determined a malfunction in coil antenna even though it is normal
B10D7:05
Key ID number program error
B10D7:51
Keyless control module detected unprogrammed key ID number
B10D7:81
Keyless control module cannot read key ID number data normally
B10D7:94
Key ID number data cannot be read
B10D8:00
Only one key or no key ID number programmed
B10D9:87
No detected communication with coil antenna
B10DA:51
Communication error between keyless control module and PCM (data transfer error)
B10DA:62
ID number data between keyless control module and PCM are different
B10E6:11
-
Voltage less than the specification (2.2—6.5 V) is detected for 0.5 s with the coil antenna power supply voltage operating
B10E6:12
-
Voltage higher than the specification (2.2—6.5 V) is detected for 0.05 s with the coil antenna power supply voltage not operating
U0100:87
Communication error between keyless control module and PCM (no response/condition mismatch)


PID/data Monitor Function

•  With the PID/data monitor function, items set in the keyless control module can be selected and read out in real-time.
•  Use the Mazda Modular Diagnostic System (M-MDS) to read the PID/data monitor.

PID name (definition)

Unit/Operation

Data contents

Inspection item (s)

BRAKE_SW1
(Brake switch status)
Off/On
•  Brake pedal depressed: On
•  Brake pedal not depressed: Off
Brake switch inspection
BRAKE_SW2
(Brake switch 2 status)
Off/On
•  Brake pedal depressed: On
•  Brake pedal not depressed: Off
Brake switch 2 inspection
BZR_OUT
(Keyless beeper status)
Off/On
•  Keyless beeper sound: On
•  Keyless beeper not sound: Off
Keyless beeper inspection
CLUTCH_SW
(Clutch switch status)
Off/On
•  Clutch pedal pressed: On
•  Clutch pedal released: Off
Clutch switch inspection
IMMOBI
(Immobilizer function present/not present)
Off/On*
•  Immobilizer function present: On
•  Immobilizer function not present: Off
Keyless control module inspection
LOCK_SW_D
(Door lock-link switch status)
Lock/Unlock
•  Driver's door: LOCK: Lock
•  Driver's door: UNLOCK: Unlock
Door lock-link switch inspection
MON_ACC
(ACC relay monitor)
Off/On
•  Switch the ignition to ACC: On
•  Switch the ignition to off: Off
ACC relay inspection
MON_IG1
(IG1 relay monitor)
Off/On
•  Switch the ignition to ON: On
•  Switch the ignition to ACC or off: Off
IG1 relay inspection
MON_IG2
(IG2 relay monitor)
Off/On
•  Switch the ignition to ON: On
•  Switch the ignition to ACC or off: Off
IG2 relay inspection
NUMCARD
(Number of advanced keys)
•  Number of programmed advanced keys: 0—6
Keyless control module inspection
NUMKEY*
(Number of key codes)
•  Number of programmed key codes: 0—8
Keyless control module inspection
PUSH_ST1
(Push button start1 status)
Off/On
•  Push button start pressed: On
•  Other than these conditions: Off
Push button start inspection
PUSH_ST2
(Push button start2 status)
Off/On
•  Push button start pressed: On
•  Other than these conditions: Off
Push button start inspection
REQ_SW_L
(Request switch (LF) status)
Off/On
•  Request switch (LF) pressed: On
•  Request switch (LF) released: Off
Request switch (LF) inspection
REQ_SW_R
(Request switch (RF) status)
Off/On
•  Request switch (RF) pressed: On
•  Request switch (RF) released: Off
Request switch (RF) inspection
REQ_SW_BK
Off/On
Note
•  Cannot be used in the inspection, and Off is normally displayed
-
RLY_ACC
(ACC relay status)
Off/On
•  Switch the ignition to ACC: On
•  Switch the ignition to off: Off
ACC relay inspection
RLY_IG1
(IG1 relay status)
Off/On
•  Switch the ignition to ON: On
•  Switch the ignition to ACC or off: Off
IG1 relay inspection
RLY_IG2
(IG2 relay status)
Off/On
•  Switch the ignition to ON: On
•  Switch the ignition to ACC or off: Off
IG2 relay inspection
RLY_ST
(Starter relay status)
Off/On
•  Switch the ignition to START (STARTER relay on): On
•  Other than these conditions: Off
Starter relay inspection
SHIFT_N
(Shift lever position)
Not_N/N
•  Shift lever in neutral position: N
•  Other than these conditions: Not_N
Neutral switch inspection
VPWR1
(Keyless control module power supply voltage1)
V
•  Continuous: Approx. 12 V
Battery inspection
VPWR2
(Keyless control module power supply voltage2)
V
•  Continuous: Approx. 12 V
Battery inspection
VPWR3
(Keyless control module power supply voltage3)
V
•  Continuous: Approx. 12 V
Battery inspection

*  :With immobilizer system

Active Command Function

•  The active command function is used for optionally selecting simulation items of output parts preset in the keyless control module, and to operate them regardless of control.

Command name

Operation condition

Output part name

Unit/Operation

BZR_OUT
On: Keyless beeper sounds
Keyless beeper
On/Off


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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