ON-BOARD DIAGNOSTIC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]

id1502006955b6


Outline

•  The on-board diagnostic function consists of the following functions: a malfunction detection function, which detects overall malfunctions in the AFS control module-related parts; a memory function, which stores detected DTCs; a display function, which indicates malfunction locations and status via DTC output; and a PID/data monitor 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.

Function


Malfunction detection function

•  Detects malfunctions in input/output signals.
•  If a malfunction occurs, the AFS 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.

Description

LED headlight warning light

Fail-safe

Drive cycle

Self test type*1

Memory function
B10A3:86
Communication error with swivel actuator (LH)
ON
×
—
D
×
B10A3:87
Communication error with swivel actuator (LH)
ON
×
—
D
×
B10A4:86
Communication error with swivel actuator (RH)
ON
×
—
D
×
B10A4:87
Communication error with swivel actuator (RH)
ON
×
—
D
×
B1D00:13
Headlight (LH) circuit malfunction
ON
×
—
C, D
×
B1D01:13
Headlight (RH) circuit malfunction
ON
×
—
C, D
×
C0051:86
Error steering angle signal received from EPS control module
ON
×
—
C, D
×
C0061:54
Acceleration sensor initial position learning not completed
Flash
×
—
D
×
U0001:88
Unit communication error (HS-CAN)
ON
×
—
C, D
×
U0100:00
Communication error with PCM
ON
×
—
C, D
×
U0131:00
Communication error with EPS control module
ON
×
—
C, D
×
U0140:00
Communication error with front body control module (FBCM)
ON
×
—
C, D
×
U0155:00
Communication error with instrument cluster
ON
×
—
C, D
×
U0320:09
EPS control module malfunction
ON
×
—
C, D
×
U0420:68
Error signal received from EPS control module
ON
×
—
C, D
×
U0423:68
Error signal received from instrument cluster
•  Ignition switch error signal
ON
×
—
C, D
—
Error signal received from instrument cluster
•  Selector lever position (R position) (ATX)/Reverse (MTX) signal error
ON
×
—
C, D
×
Error signal received from instrument cluster
•  Selector lever position (R position) (ATX)/Reverse (MTX) signal not determined
ON
×
—
C, D
—
U2005:86
Error signal received from PCM
ON
×
—
C, D
×
U2300:54
Error configuration data received from instrument cluster
ON
×
—
C, D
×
U2300:55
Instrument cluster configuration not implemented
—
×
—
C, D
×
U2300:56
Configuration data unmatched with instrument cluster
ON
×
—
C, D
×
U3000:42
AFS control module internal malfunction
ON
×
—
C, D
×
U3003:16
AFS control module low power supply voltage input
—
×
—
C, D
—
U3003:17
AFS control module high power supply voltage input
—
×
—
C, D
—

*1  :C: CMDTC self test, D: ODDTC self test


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.
ac5uun00001106


Status byte for DTC

•  The status byte is the two digits (two digits after hyphen (-)) after the 7-digit DTC.
ac5wzn00002013
•  The status byte is a code which indicates the pending code, current/past malfunction status, or warning illumination status.
•  The status byte 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
B10A3:86
Communication error with swivel actuator (LH)
•  The AFS control module received error signals from the swivel actuator (LH) three times continuously with the ignition switched ON (engine off or on).
•  The AFS control module could not receive the signal from the swivel actuator (LH) for 5 s or more with the ignition switched ON (engine off or on).
B10A3:87
Communication error with swivel actuator (LH)
•  The AFS control module detected communication error with the swivel actuator (LH) for 5 s or more with the ignition switched ON (engine off or on).
B10A4:86
Communication error with swivel actuator (RH)
•  The AFS control module received error signal from the swivel actuator (RH) three times continuously with the ignition switched ON (engine off or on).
•  The AFS control module could not receive signal from the swivel actuator (RH) for 5 s or more with the ignition switched ON (engine off or on).
B10A4:87
Communication error with swivel actuator (RH)
•  The AFS control module detected communication error with the swivel actuator (RH) for 5 s or more with the ignition switched ON (engine off or on).
B1D00:13
Headlight (LH) circuit malfunction
•  The AFS control module detected an open circuit in the headlight (LH) circuit during the headlight LO on control for 5 s or more with the ignition switched ON (engine off or on).
B1D01:13
Headlight (RH) circuit malfunction
•  The AFS control module detected an open circuit in the headlight (RH) circuit during the headlight LO on control for 5 s or more with the ignition switched ON (engine off or on).
C0051:86
Error steering angle signal received from EPS control module
•  Either a condition in which the steering angle sensor has a malfunction and the EPS control module has not performed steering angle neutral position auto learning, or a condition in which the EPS control module has a malfunction is detected for 5 s or more.
C0061:54
Acceleration sensor initial position learning not completed
•  The adaptive front lighting system (AFS) control module detects that the acceleration sensor initial position learning is not completed.
U0001:88
Unit communication error (HS-CAN)
•  The AFS control module detected CAN bus communication line (HS-CAN) malfunction 10 times continuously.
U0100:00
Communication error with PCM
•  The AFS control module could not receive CAN signal from the PCM for 5 s or more.
U0131:00
Communication error with EPS control module
•  The AFS control module could not receive CAN signal from the EPS control module for 5 s or more.
U0140:00
Communication error with front body control module (FBCM)
•  The AFS 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 AFS control module could not receive CAN signal from the instrument cluster for 5 s or more.
U0320:09
EPS control module malfunction
•  The AFS control module received CAN error signal from the EPS control module for 5 s or more with the ignition switched ON (engine off or on).
U0420:68
Error signal received from EPS control module
•  The AFS control module received error signal from the 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
•  The AFS 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) (ATX)/Reverse (MTX) signal error
•  The AFS control module received selector lever position (R position) (ATX)/Reverse (MTX) 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) (ATX)/Reverse (MTX) signal not determined
•  The AFS control module detected undetermined selector lever position (R position) (ATX)/Reverse (MTX) signal.
U2005:86
Error signal received from PCM
•  The AFS 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
•  The AFS control module received error configuration data from the instrument cluster for 30 s or more with the ignition switched ON (engine off or on).
U2300:55
Instrument cluster configuration not implemented
•  The AFS 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 AFS control module and instrument cluster are not matched.
U3000:42
AFS control module internal malfunction
•  Malfunction in the AFS control module internal EEPROM is detected.
U3003:16
AFS control module low power supply voltage input
•  AFS control module power supply circuit voltage of 9 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).
U3003:17
AFS control module high power supply voltage input
•  AFS 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

•  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 AFS 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 AFS 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 AFS 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 AFS 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/Key Approved (Position 0)/Post Accessory (Position 0)/Accessory (Position 1)/Post Ignition (Position 1)/ignition On (Position 2)/Running (Position 2)/Running - Starting In Progress (Position 2)/Crank (Position 3)
Ignition switch status
•  The AFS control module constantly receives the ignition switch status sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the AFS 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 AFS control module constantly receives the engine speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the AFS 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 AFS control module constantly receives the selector lever position sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the AFS 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 AFS control module detects DTC (Odometer value in instrument cluster)
The total traveled distance from which the AFS 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 AFS 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 AFS 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
AFS control module power supply voltage
—
VPWR_IG
VSPD_STATUS
Stop/0-10km/h/Over10km/h/FAIL
Vehicle speed status
•  The AFS control module constantly receives the vehicle speed sent via CAN signal from the instrument cluster.
•  If a DTC is detected, the AFS 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 AFS control module can be selected and read out in real-time.

—: Not applicable

PID

Unit/Operation

Data contents

Module control terminal
AFS_ST
Off/On
•  Off: AFS is not operated.
•  On: AFS is operated.
T, V
H/L_BO_L
OK/NG
Displays the headlight LO (LH) open circuit detection status. (Detects during low beam on)
L
H/L_BO_R
OK/NG
Displays the headlight LO (RH) open circuit detection status. (Detects during low beam on)
J
STR_AB_ANG
° (deg)
Displays steering angle signal (estimated absolute angle)
•  Steering wheel in neutral position: Near 0 degrees
•  Steering wheel turned to left: Changes from 0 degrees to positive
•  Steering wheel turned to right: Changes from 0 degrees to negative
T, V
VPWR_IG
V
AFS control module power supply voltage is displayed.
C, E
VSPD
KPH, MPH
Vehicle speed is displayed.
T, V