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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (On-Board Diagnostic - Power Liftgate Control Module) >> DTC B144F-62; Deviation In Operation Between Left And Right Power Liftgate (PLG) Drive Unit >> Notes
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DTC B144F-62; Deviation In Operation Between Left And Right Power Liftgate (PLG) Drive Unit: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE

Description Deviation in operation between left and right power liftgate (PLG) drive unit
Detection condition
  • The power liftgate (PLG) control module detects a difference in operation between the left and right power liftgate (PLG) drive unit for a 50 pulse count or more.
Fail-safe
  • Stops the power liftgate (PLG) system operation.
Possible cause
  • Power liftgate (PLG) drive unit (LH) connector or terminal malfunction
  • Power liftgate (PLG) drive unit (RH) connector or terminal malfunction
  • Power liftgate (PLG) control module connector or terminal malfunction
  • Short to ground in wiring harness between the following terminals:
    • Power liftgate (PLG) drive unit (LH) terminal D-Power liftgate (PLG) control module terminal 1J
    • Power liftgate (PLG) drive unit (LH) terminal B-Power liftgate (PLG) control module terminal 1H
    • Power liftgate (PLG) drive unit (RH) terminal D-Power liftgate (PLG) control module terminal 1I
      • Power liftgate (PLG) drive unit (RH) terminal B-Power liftgate (PLG) control module terminal 1G
  • Short to power supply in wiring harness between the following terminals:
    • Power liftgate (PLG) drive unit (LH) terminal D-Power liftgate (PLG) control module terminal 1J
    • Power liftgate (PLG) drive unit (LH) terminal B-Power liftgate (PLG) control module terminal 1H
    • Power liftgate (PLG) drive unit (RH) terminal D-Power liftgate (PLG) control module terminal 1I
      • Power liftgate (PLG) drive unit (RH) terminal B-Power liftgate (PLG) control module terminal 1G
  • Open circuit in wiring harness between the following terminals:
    • Power liftgate (PLG) drive unit (LH) terminal D-Power liftgate (PLG) control module terminal 1J
    • Power liftgate (PLG) drive unit (LH) terminal B-Power liftgate (PLG) control module terminal 1H
    • Power liftgate (PLG) drive unit (RH) terminal D-Power liftgate (PLG) control module terminal 1I
      • Power liftgate (PLG) drive unit (RH) terminal B-Power liftgate (PLG) control module terminal 1G
  • Power liftgate (PLG) drive unit (LH) malfunction
  • Power liftgate (PLG) drive unit (RH) malfunction
  • Power liftgate (PLG) control module malfunction
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