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Home >> Mazda >> 2021 >> CX-5 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (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-5. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION AND POSSIBLE CAUSES

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
Fig 1: PLG Drive Unit (LH) And PLG Control Module Communication Diagram
G11426181Courtesy of MAZDA MOTORS CORP.
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