2021 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE

PID/Data Monitor Table [Adaptive Front Lighting System (AFS) Control Module]

PID/DATA MONITOR ITEM REFERENCE

PID Unit/Operation Data contents Module control terminal
ACC_SEN_TEMP °C Displays acceleration sensor temperature. -
ACC_SEN_TEMP_INIT °C Displays acceleration sensor temperature when adaptive front lighting system (AFS) control module is initialized. -
ACC_X mG Displays current acceleration value (X-axis). -
ACC_X_INIT mG Displays acceleration value (X-axis) when adaptive front lighting system (AFS) control module is initialized. -
ACC_Y mG Displays current acceleration value (Y-axis). -
ACC_Y_IN IT mG Displays acceleration value (Y-axis) when adaptive front lighting system (AFS) control module is initialized. -
ACC_Z mG Displays current acceleration value (Z-axis). -
ACC_Z_INIT mG Displays acceleration value (X-axis) when adaptive front lighting system (AFS) control module is initialized. -
AFS_SW_STAT Not Adopted/OFF/ON
  • Not Adopted: Adaptive front lighting system (AFS) is not adopted.
  • OFF: Adaptive front lighting system (AFS) control module is not operated.
  • On: Adaptive front lighting system (AFS) control module is operated.
 J, I
H/L_STAT OFF/DRL ON/TNS ON/HeadlightLo ON/HeadlightHi ON
  • OFF: Headlights are not illuminated.
  • DRL ON: Daytime running light (DRL) is illuminated.
  • TNS ON: Parking light is illuminated.
  • HeadlightLo ON: Headlight LO are illuminated.
  • HeadlightHi ON: Headlight HI are illuminated.
 J, I
HORZ_STAT Not horizontally/horizontally Displays status of horizontal. - 
LVL_TGT_ANG ° (deg) Displays target angle of leveling control. E
PITCH ° (deg) Displays calculated pitch angle. -
PITCH_INIT ° (deg) Displays calculated pitch angle when auto leveling control module is initialized. -
REV_LAMP_STAT Off/On
  • Off: Back-up lights are not illuminated.
  • On: Back-up lights are illuminated.
 J, I
STR_ANG ° (deg) Displays steering angle signal (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
 J, I
VPWR V Displays adaptive front lighting system (AFS) control module power supply voltage. C
VSS km/h Vehicle speed is displayed. J, I
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.