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

• 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.

• 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 No.	AFS OFF indicator light	Description	Fail-safe function	Drive cycle	Self test type^*1	Memory function
B1041:54	Flash (Pattern 2)	Headlight auto leveling system initialization error	×	—	D	—
B1044:01	Flash (Pattern 1)	Auto leveling sensor circuit malfunction	×	—	D	×
B10A3:86	Flash (Pattern 1)	Communication error with swivel actuator (LH)	×	—	D	×
B10A3:87	Flash (Pattern 1)	Communication error with swivel actuator (LH)	×	—	D	×
B10A4:86	Flash (Pattern 1)	Communication error with swivel actuator (RH)	×	—	D	×
B10A4:87	Flash (Pattern 1)	Communication error with swivel actuator (RH)	×	—	D	×
C0051:86	Flash (Pattern 1)	Error steering angle signal received from EPS control module	×	—	C, D	×
U0001:88	Flash (Pattern 1)	Unit communication error (HS-CAN)	×	—	C, D	×
U0100:00	Flash (Pattern 1)	Communication error with PCM	×	—	C, D	×
U0131:00	Flash (Pattern 1)	Communication error with EPS control module	×	—	C, D	×
U0140:00	Flash (Pattern 1)	Communication error with front body control module (FBCM)	×	—	C, D	×
U0155:00	Flash (Pattern 1)	Communication error with instrument cluster	×	—	C, D	×
U0320:09	Flash (Pattern 1)	Error signal received from EPS control module	×	—	C, D	×
U0420:68	Flash (Pattern 1)	Error signal received from EPS control module	×	—	C, D	×
U0423:68	—	Error signal received from instrument cluster • AFS OFF switch error signal	×	—	C, D	—
—	Error signal received from instrument cluster • Ignition switch error signal	×	—	C, D	—
Flash (Pattern 1)	Error signal received from instrument cluster • Selector lever R position (ATX)/Shift lever reverse (MTX) signal error	×	—	C, D	×
—	Error signal received from instrument cluster • Selector lever R position (ATX)/Shift lever reverse (MTX) signal not determined	×	—	C, D	—
U2005:86	Flash (Pattern 1)	Error signal received from PCM	×	—	C, D	×
U2300:54	Flash (Pattern 1)	Error configuration data received from instrument cluster	×	—	C, D	×
U2300:55	—	Instrument cluster configuration not implemented	×	—	C, D	×
U2300:56	Flash (Pattern 1)	Configuration data unmatched with instrument cluster	×	—	C, D	×
U3000:42	Flash (Pattern 1)	AFS control module internal malfunction	×	—	C, D	×
U3000:49	—	AFS control module internal malfunction	×	—	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	—

DTC No.

AFS OFF indicator light

Description

Fail-safe function

Drive cycle

Self test type^*1

Memory function

B1041:54

Flash (Pattern 2)

Headlight auto leveling system initialization error

—

B1044:01

Flash (Pattern 1)

Auto leveling sensor circuit malfunction

—

B10A3:86

Flash (Pattern 1)

Communication error with swivel actuator (LH)

—

B10A3:87

Flash (Pattern 1)

Communication error with swivel actuator (LH)

—

B10A4:86

Flash (Pattern 1)

Communication error with swivel actuator (RH)

—

B10A4:87

Flash (Pattern 1)

Communication error with swivel actuator (RH)

—

C0051:86

Flash (Pattern 1)

Error steering angle signal received from EPS control module

—

C, D

U0001:88

Flash (Pattern 1)

Unit communication error (HS-CAN)

—

C, D

U0100:00

Flash (Pattern 1)

Communication error with PCM

—

C, D

U0131:00

Flash (Pattern 1)

Communication error with EPS control module

—

C, D

U0140:00

Flash (Pattern 1)

Communication error with front body control module (FBCM)

—

C, D

U0155:00

Flash (Pattern 1)

Communication error with instrument cluster

—

C, D

U0320:09

Flash (Pattern 1)

Error signal received from EPS control module

—

C, D

U0420:68

Flash (Pattern 1)

Error signal received from EPS control module

—

C, D

U0423:68

—

Error signal received from instrument cluster

• AFS OFF switch error signal

—

C, D

—

Error signal received from instrument cluster

• Ignition switch error signal

—

C, D

—

Flash (Pattern 1)

Error signal received from instrument cluster

• Selector lever R position (ATX)/Shift lever reverse (MTX) signal error

—

C, D

—

Error signal received from instrument cluster

• Selector lever R position (ATX)/Shift lever reverse (MTX) signal not determined

—

C, D

—

U2005:86

Flash (Pattern 1)

Error signal received from PCM

—

C, D

U2300:54

Flash (Pattern 1)

Error configuration data received from instrument cluster

—

C, D

U2300:55

—

Instrument cluster configuration not implemented

—

C, D

U2300:56

Flash (Pattern 1)

Configuration data unmatched with instrument cluster

—

C, D

U3000:42

Flash (Pattern 1)

AFS control module internal malfunction

—

C, D

U3000:49

—

AFS control module internal malfunction

—

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

—

DTC No.	Description	Detection condition
B1041:54	Headlight auto leveling system initialization error	• Headlight auto leveling system initialization is not performed with the Ignition switched ON (engine off or on).
B1044:01	Auto leveling sensor circuit malfunction	• AFS control module detected the auto leveling sensor circuit voltage of 0.25 V or less or 4.75 V or more for 10 s or more with the ignition switched ON (engine off or on).
B10A3:86	Communication error with swivel actuator (LH)	• AFS control module received the error signals 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)	• 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)	• AFS control module received the error signals 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)	• 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).
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.
U0001:88	Unit communication error (HS-CAN)	• AFS control module detected the CAN bus communication line (HS-CAN) malfunction 10 times continuously.
U0100:00	Communication error with PCM	• AFS control module could not receive the CAN signal from the PCM for 5 s or more.
U0131:00	Communication error with EPS control module	• AFS control module could not receive the CAN signal from the EPS control module for 5 s or more.
U0140:00	Communication error with front body control module (FBCM)	• AFS control module could not receive the CAN signal from the front body control module (FBCM) for 5 s or more.
U0155:00	Communication error with instrument cluster	• AFS control module could not receive the CAN signal from the instrument cluster for 5 s or more.
U0320:09	Error signal received from EPS control module	• AFS control module received the 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	• AFS control module received the 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 • AFS OFF switch error signal	• AFS control module received the AFS OFF switch error signal for 5 s or more with the ignition switched ON (engine off or on).
	Error signal received from instrument cluster • Ignition switch error signal	• AFS control module received the 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 R position (ATX)/Shift lever reverse (MTX) signal error	• AFS control module received the selector lever R position (ATX)/Shift lever 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 R position (ATX)/Shift lever reverse (MTX) signal not determined	• AFS control module detected the undetermined selector lever R position (ATX)/Shift lever reverse (MTX) signal.
U2005:86	Error signal received from PCM	• AFS control module received the 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	• AFS control module received the 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	• 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	• AFS control module detects the internal EEPROM malfunction.
U3000:49	AFS control module internal malfunction	• AFS control module detects the internal malfunction.
U3003:16	AFS control module low power supply voltage input	• AFS control module power supply circuit voltage of 9.8 V or less is detected for 10 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 15.2 V or more is detected for 10 s or more with the ignition switched ON (engine off or on).

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 (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 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

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

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 (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 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

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

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

• 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.

PID	Unit/Operation	Data contents	Inspection item(s)
AFS_ST	Off/On	• Off: AFS is not operated. • On: AFS is operated.	• AFS OFF switch • AFS control module
H/L_CS	OFF/DRL/TNS/H/L_LOW/H/L_HI	• OFF: Light switch is in OFF position • DRL: Light switch at AUTO position and auto light sensor sends turn-off signal • TNS: Light switch is in TNS position • H/L_LOW: Light switch is in LO position • H/L_HI: Light switch is in HI position	Light switch
R_HGT_S	V	Displays voltage at auto leveling sensor.	Auto leveling sensor
R_HGT_S_INI	V	Displays voltage at headlight auto leveling system initial setting.	Auto leveling sensor
R_LMP_CS	Off/On/Unknown/Fault	ATX: • Off: Selector lever position signal (R position) is not received. • On: Selector lever position signal (R position) is received. • Unknown: Selector lever position signal (R position) is not determined. • Fault: Selector lever position signal (R position) error is received. MTX: • Off: Reverse signal is not received. • On: Reverse signal is received. • Unknown: Reverse signal is not determined. • Fault: Reverse signal error is received.	ATX: • Transaxle range sensor MTX: • Back-up light switch
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	• Perform the DTC inspection for the PCM, DSC HU/CM, and EPS CM, and if any DTC is displayed, repair the malfunctioning part according to the applicable DTC troubleshooting. • After performing the DTC inspection, perform the following procedures: ― Switch the ignition off, and after 2 min or more have elapsed, switch the ignition ON (engine off or on). ― Start the engine and drive the vehicle 10 m {33 ft} or more in a straight line at a speed of 10 km/h {6.2 mph} or more. ― Stop the vehicle with the wheels in the straight-ahead position. ― Verify the operation condition of STR_AB_ANG using the M-MDS. • If an abnormal value is indicated again, replace the EPS CM.
VPWR_IG	V	Displays AFS control module power supply voltage.	• AFS control module • IG1 relay • Battery
VSPD	KPH, MPH	Displays vehicle speed.	—

PID

Unit/Operation

Data contents

Inspection item(s)

AFS_ST

Off/On

• Off: AFS is not operated.

• On: AFS is operated.

• AFS OFF switch

• AFS control module

H/L_CS

OFF/DRL/TNS/H/L_LOW/H/L_HI

• OFF: Light switch is in OFF position

• DRL: Light switch at AUTO position and auto light sensor sends turn-off signal

• TNS: Light switch is in TNS position

• H/L_LOW: Light switch is in LO position

• H/L_HI: Light switch is in HI position

Light switch

R_HGT_S

Displays voltage at auto leveling sensor.

Auto leveling sensor

R_HGT_S_INI

Displays voltage at headlight auto leveling system initial setting.

Auto leveling sensor

R_LMP_CS

Off/On/Unknown/Fault

ATX:

• Off: Selector lever position signal (R position) is not received.

• On: Selector lever position signal (R position) is received.

• Unknown: Selector lever position signal (R position) is not determined.

• Fault: Selector lever position signal (R position) error is received.

MTX:

• Off: Reverse signal is not received.

• On: Reverse signal is received.

• Unknown: Reverse signal is not determined.

• Fault: Reverse signal error is received.

ATX:

• Transaxle range sensor

MTX:

• Back-up light switch

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

• Perform the DTC inspection for the PCM, DSC HU/CM, and EPS CM, and if any DTC is displayed, repair the malfunctioning part according to the applicable DTC troubleshooting.

• After performing the DTC inspection, perform the following procedures:

― Switch the ignition off, and after 2 min or more have elapsed, switch the ignition ON (engine off or on).

― Start the engine and drive the vehicle 10 m {33 ft} or more in a straight line at a speed of 10 km/h {6.2 mph} or more.

― Stop the vehicle with the wheels in the straight-ahead position.

― Verify the operation condition of STR_AB_ANG using the M-MDS.

• If an abnormal value is indicated again, replace the EPS CM.

VPWR_IG

Displays AFS control module power supply voltage.

• AFS control module

• IG1 relay

• Battery

VSPD

KPH, MPH

Displays vehicle speed.

—