ON-BOARD DIAGNOSTIC [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]

id1502006955c1


Outline

•  The adaptive LED headlights control module has an on-board diagnostic function to facilitate system diagnosis.

Function

•  The on-board diagnostic function consists of the following functions:
―  A malfunction detection function, which detects overall malfunctions in the adaptive LED headlights control module-related parts.
―  A memory function, which stores detected DTCs.
―  A display function, which indicates malfunction locations and status via DTC output.
―  A PID/data monitoring function, which reads out specific input/output signals and verifies the input/output condition.
•  Using the Mazda Modular Diagnostic System (M-MDS), DTCs can be read out and deleted, and the PID/data monitor function can be activated.

Malfunction Detection Function

•  Detects malfunctions in input/output signals.
•  If a malfunction occurs, the adaptive LED headlights control module records the malfunction as a DTC. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

DTC table

×: Applicable
—: Not applicable

DTC No.

Adaptive LED headlights warning light (amber)

Description

Fail-safe

Drive cycle

Self test type*1

Memory function
B1437:86
ON
Communication error with front combination light (LH)
×
—
C, D
×
B1437:87
ON
Communication error with front combination light (LH)
×
—
C, D
×
B1439:86
ON
Communication error with front combination light (RH)
×
—
C, D
×
B1439:87
ON
Communication error with front combination light (RH)
×
—
C, D
×
B1D00:13
ON
Headlight (LH) circuit malfunction
×
—
C, D
×
B1D01:13
ON
Headlight (RH) circuit malfunction
×
—
C, D
×
B1D02:86
ON
Communication error with front combination light (LH)
×
—
C, D
×
B1D02:87
ON
Communication error with front combination light (LH)
×
—
C, D
×
B1D03:86
ON
Communication error with front combination light (RH)
×
—
C, D
×
B1D03:87
ON
Communication error with front combination light (RH)
×
—
C, D
×
C0051:86
ON
Error steering angle signal received from electric power steering (EPS) control module
×
—
C, D
×
C0061:54
—
Acceleration sensor initial position learning not completed
×
—
D
×
U0001:88
ON
Unit communication error (HS-CAN)
×
—
C, D
×
U0100:00
ON
Communication error with PCM
×
—
C, D
×
U0121:00
ON
Communication error with DSC HU/CM
×
—
C, D
×
U0131:00
ON
Communication error with electric power steering (EPS) control module
×
—
C, D
×
U0140:00
ON
Communication error with front body control module (FBCM)
×
—
C, D
×
U0155:00
ON
Communication error with instrument cluster
×
—
C, D
×
U0214:00
ON
Communication error with start stop unit
×
—
C, D
×
U023A:00
ON
Communication error with forward sensing camera (FSC)
×
—
C, D
×
U0320:09
ON
Error signal received from electric power steering (EPS) control module
×
—
C, D
×
U0415:68
ON
Error signal received from DSC HU/CM
×
—
C, D
×
U0420:68
ON
Error signal received from electric power steering (EPS) control module
×
—
C, D
×
U0423:68
—
Error signal received from instrument cluster
•  Ignition switch error signal
×
—
C, D
—
ON
Error signal received from instrument cluster
•  Selector lever position (R position) signal error
×
—
C, D
×
ON
Error signal received from instrument cluster
•  Selector lever position (R position) signal not determined
×
—
C, D
×
U0515:68
ON
Error signal received from start stop unit
×
—
C, D
×
U053B:68
ON
Error signal received from forward sensing camera (FSC)
×
—
C, D
×
U2005:86
ON
Error signal received from PCM
×
—
C, D
×
U2300:54
—
Error configuration data received from instrument cluster
×
—
C, D
×
U2300:55
ON
Instrument cluster configuration not implemented
×
—
C, D
×
U2300:56
—
Configuration data unmatched with instrument cluster
×
—
C, D
×
U3000:42
ON
Adaptive LED headlights control module internal malfunction
×
—
C, D
×*2
U3000:49
ON
Adaptive LED headlights control module internal malfunction
×
—
C, D
×*2
U3003:16
—
Adaptive LED headlights control module low power supply voltage input
×
—
C, D
×
U3003:17
—
Adaptive LED headlights control module high power supply voltage input
×
—
C, D
×

*1  :C: CMDTC self test, D: ODDTC self test
*2  :The memory function may not operate depending on the malfunction conditions.


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.
ac5wzn00004041


Status byte for DTC

•  The two digits (two digits after hyphen (-)) after the 7-digit DTC.
ac5wzn00004042
•  A code which indicates the pending code, current/past malfunction status, or warning illumination status.
•  Can be read by performing a CMDTC self-test using the Mazda Modular Diagnostic System (M-MDS).
•  For details on the status byte, refer to the explanation on the Mazda Modular Diagnostic System (M-MDS) when reading the DTC.


Detection condition for the applicable DTC

DTC No.

Description

Detection condition
B1437:86
Communication error with front combination light (LH)
•  The adaptive LED headlight control module received error signals from the front combination light (LH) for 5 s or more with the ignition switched ON (engine off or on).
B1437:87
Communication error with front combination light (LH)
•  The adaptive LED headlights control module detected communication error with the front combination light (LH) for 5 s or more with the ignition switched ON (engine off or on).
B1439:86
Communication error with front combination light (RH)
•  The adaptive LED headlight control module received error signals from the front combination light (RH) for 5 s or more with the ignition switched ON (engine off or on).
B1439:87
Communication error with front combination light (RH)
•  The adaptive LED headlights control module detected communication error with the front combination light (RH) for 5 s or more with the ignition switched ON (engine off or on).
B1D00:13
Headlight (LH) circuit malfunction
•  The adaptive LED headlights control module detected a malfunction in the headlight (LH) circuit 5 s or more during the headlight LO on control with the ignition switched ON (engine off or on).
B1D01:13
Headlight (RH) circuit malfunction
•  The adaptive LED headlights control module detected a malfunction in the headlight (RH) circuit 5 s or more during the headlight LO on control with the ignition switched ON (engine off or on).
B1D02:86
Communication error with front combination light (LH)
•  The adaptive LED headlight control module received error signals from the front combination light (LH) for 5 s or more with the ignition switched ON (engine off or on).
B1D02:87
Communication error with front combination light (LH)
•  The adaptive LED headlights control module detected communication error with the front combination light (LH) for 5 s or more with the ignition switched ON (engine off or on).
B1D03:86
Communication error with front combination light (RH)
•  The adaptive LED headlight control module received error signals from the front combination light (RH) for 5 s or more with the ignition switched ON (engine off or on).
B1D03:87
Communication error with front combination light (RH)
•  The adaptive LED headlights control module detected communication error with the front combination light (RH) for 5 s or more with the ignition switched ON (engine off or on).
C0051:86
Error steering angle signal received from electric power steering (EPS) control module
•  Either a condition in which the steering angle sensor has a malfunction and the electric power steering (EPS) control module has not performed steering angle neutral position auto learning, or a condition in which the electric power steering (EPS) control module has a malfunction is detected for 5 s or more.
C0061:54
Acceleration sensor initial position learning not completed
•  The adaptive LED headlights control module detects that the acceleration sensor initial position learning is not completed.
U0001:88
Unit communication error (HS-CAN)
•  The adaptive LED headlights control module detected CAN bus communication line (HS-CAN) malfunction ten times continuously.
U0100:00
Communication error with PCM
•  The adaptive LED headlights control module could not receive CAN signal from the PCM for 5 s or more.
U0121:00
Communication error with DSC HU/CM
•  The adaptive LED headlights control module could not receive CAN signal from the DSC HU/CM for 5 s or more.
U0131:00
Communication error with electric power steering (EPS) control module
•  The adaptive LED headlights control module could not receive CAN signal from the electric power steering (EPS) control module for 5 s or more.
U0140:00
Communication error with front body control module (FBCM)
•  The adaptive LED headlights control module could not receive CAN signal from the front body control module (FBCM) for 5 s or more.
U0155:00
Communication error with instrument cluster
•  The adaptive LED headlights control module could not receive CAN signal from the instrument cluster for 5 s or more.
U0214:00
Communication error with start stop unit
•  The adaptive LED headlights control module could not receive CAN signal from the start stop unit for 5 s or more.
U023A:00
Communication error with forward sensing camera (FSC)
•  The adaptive LED headlights control module could not receive CAN signal from the forward sensing camera (FSC) for 5 s or more.
U0320:09
Error signal received from electric power steering (EPS) control module
•  The adaptive LED headlights control module received CAN error signal from the electric power steering (EPS) control module for 5 s or more with the ignition switched ON (engine off or on).
U0415:68
Error signal received from DSC HU/CM
•  The adaptive LED headlights control module received CAN error signal from the DSC HU/CM for 5 s or more with the ignition switched ON (engine off or on).
U0420:68
Error signal received from electric power steering (EPS) control module
•  The adaptive LED headlights control module received error signal from the electric power steering (EPS) control module for 5 s or more with the ignition switched ON (engine off or on).
U0423:68
Error signal received from instrument cluster
•  Ignition switch error signal
•  Ignition switch error signal
―  The adaptive LED headlights control module received ignition switch error signal for 5 s or more with the ignition switched ON (engine off or on).
Error signal received from instrument cluster
•  Selector lever position (R position) signal error
•  Selector lever position (R position) signal error
―  The adaptive LED headlights control module received selector lever position (R position) signal error for 5 s or more with the ignition switched ON (engine off or on).
Error signal received from instrument cluster
•  Selector lever position (R position) signal not determined
•  Selector lever position (R position) signal not determined
―  The adaptive LED headlights control module detected undetermined selector lever position (R position) signal for 5 s or more with the ignition switched ON (engine off or on).
U0515:68
Error signal received from start stop unit
•  The adaptive LED headlights control module received CAN error signal from the start stop unit for 5 s or more with the ignition switched ON (engine off or on).
U053B:68
Error signal received from forward sensing camera (FSC)
•  The adaptive LED headlights control module received CAN error signal from the forward sensing camera (FSC) for 5 s or more with the ignition switched ON (engine off or on).
U2005:86
Error signal received from PCM
•  The adaptive LED headlights control module received vehicle speed signal error from the PCM for 5 s or more with the ignition switched ON (engine off or on).
U2300:54
Error configuration data received from instrument cluster
•  After 30 s or more have elapsed with the ignition switched ON (engine on or off), the adaptive LED headlights control module received error configuration data from the instrument cluster.
U2300:55
Instrument cluster configuration not implemented
•  The adaptive LED headlights control module received a signal which indicates the instrument cluster configuration is not performed.
U2300:56
Configuration data unmatched with instrument cluster
•  Configuration data of the adaptive LED headlights control module and instrument cluster are not matched.
U3000:42
Adaptive LED headlights control module internal malfunction
•  Malfunction in the adaptive LED headlights control module internal EEPROM is detected.
U3000:49
Adaptive LED headlights control module internal malfunction
•  The adaptive LED headlights control module detected a internal malfunction.
U3003:16
Adaptive LED headlights control module low power supply voltage input
•  Adaptive LED headlights control module power supply circuit voltage of 9.0 or less is detected for 5 s or more with the ignition switched ON (engine off or on).
U3003:17
Adaptive LED headlights control module high power supply voltage input
•  Adaptive LED headlights control module power supply circuit voltage of 18.1 V or more is detected for 5 s or more with the ignition switched ON (engine off or on).


Snapshot data

Note
•  The adaptive LED headlights control module stores the following two types of snapshot data (vehicle information) when a DTC is detected and displays them in the Mazda Modular Diagnostic System (M-MDS).
―  Vehicle information detected by adaptive LED headlights control module
―  Vehicle information detected by instrument cluster and received by adaptive LED headlights control module via CAN communication
•  The data for all DTCs currently detected is stored.

—: Not applicable

Snapshot data item

Unit

Data contents

Data read/use method

Corresponding data monitor items
AAT
°C
°F
Ambient temperature
—
—
APP_STATUS
Accelerator Pedal Off/Under20%/Over20%/FAIL
Accelerator pedal position status
—
—
CFG_STATUS
Config Complete/Not Configured/Config Error
Instrument cluster configuration status
—
—
ECT_STATUS
Under 0 degrees C/0 - Under 80 degrees C/Over 80 degrees C/FAIL
Engine coolant temperature status
—
—
IC_VPWR
V
Instrument cluster power supply voltage
•  The adaptive LED headlights control module constantly receives the power supply voltage value of the instrument cluster sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the M-MDS.
VPWR*1
IG-ON_TIMER
hh:mm:ss*2
Elapsed time since ignition was switched ON (engine off or on)
Note
•  The instrument cluster records the elapsed time since the ignition was switched ON (engine off or on).
•  The adaptive LED headlights control module constantly receives the elapsed time since the ignition was switched ON (engine off or on) sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the elapsed time since the ignition was switched ON (engine off or on) when the DTC was detected, and it is displayed in the M-MDS.
—
PWR_MODE_KEY
Key Out/Key Recently Out (Position 0)/Accessory (Position 1)/Post Ignition (Position 2)/Ignition On (Position 2)/Running (Position 2)/Running - Starting
•  Key Out: Ignition switched off
•  Key Recently Out (Position 0): Elapsed time within 3 s since ignition was switched off
•  Accessory (Position 1): Ignition is switched to ACC
•  Post Ignition (Position 2): Elapsed time within 3 s since ignition was switched ON (engine off or on)
•  Ignition On (Position 2): Ignition switched ON (engine off)
•  Running (Position 2): Ignition switched ON (engine on)
•  Running - Starting: Cranking condition
•  The adaptive LED headlights control module constantly receives the ignition switch status sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.
—
RPM_STATUS
Engine Stop/Under1500rpm/Over1500rpm/FAIL
Engine speed status
•  The adaptive LED headlights control module constantly receives the engine speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the engine speed when the DTC was detected, and it is displayed in the M-MDS.
TACHOMTR*1
SHIFT_STATUS
P/N/D/R/FAIL
Selector lever position status
•  The adaptive LED headlights control module constantly receives the selector lever position sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the selector lever position when the DTC was detected, and it is displayed in the M-MDS.
—
TOTAL_DIST
km
Miles
Accumulated total traveled distance from completion of vehicle until adaptive LED headlights control module detects DTC (Odometer value in instrument cluster)
The total traveled distance from which the adaptive LED headlights control module detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the odometer value in the instrument cluster.
2.  Verify the snapshot data item TOTAL_DIST.
3.  Subtract 2 from 1.
—
TOTAL_TIME
hh:mm:ss*2
Accumulated total elapsed time since vehicle completion until adaptive LED headlights control module detects a DTC
Note
•  When the ROOM fuse is removed, and the ignition is switched off, the time is not included in the elapsed time.
The elapsed time from which the adaptive LED headlights control module detects DTCs to the present can be calculated by performing the following procedure.
1.  Verify the instrument cluster PID item TOTAL_TIME.
2.  Verify the snapshot data item TOTAL_TIME.
3.  Subtract 2 from 1.
TOTAL_TIME*1
VPWR
V
Adaptive LED headlights control module power supply voltage
—
VPWR_IG
VSPD_STATUS
Stop/0-10km/h/Over10km/h/FAIL
Vehicle speed status
•  The adaptive LED headlights control module constantly receives the vehicle speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the adaptive LED headlights control module records the vehicle speed when the DTC was detected, and it is displayed in the M-MDS.
SPEEDOMTR*1

*1  :Instrument cluster PID (See ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER].)
*2  :The seconds may be indicated after the decimal point.


PID/Data Monitor Function

•  With the PID/data monitor function, input/output signal monitor items set in the adaptive LED headlights control module can be selected and read out in real-time.

PID

Unit/Operation

Data contents

Module control terminal
AFS_ST
Off/On
Note
•  Displayed on M-MDS but does not function.
STR_AB_ANG
° (deg)
Displays steering angle signal (estimated absolute angle)
•  Steering wheel in neutral position: Near 0 degrees
•  Steering wheel turned to left: Steering wheel turned to left: Changes from 0 degrees to positive
•  Steering wheel turned to right: Steering wheel turned to right: Changes from 0 degrees to negative
•  A
•  B
VPWR_IG
V
Adaptive LED headlights control module power supply voltage is displayed.
•  N
•  L
VSPD
KPH, MPH
Vehicle speed is displayed.
•  A
•  B