DTC B144D-64; Error Signal Received From Power Liftgate (PLG) Drive Unit (LH): 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	Error signal received from power liftgate (PLG) drive unit (LH)
Detection condition	The power liftgate (PLG) control module detects an incorrect pulse count from the power liftgate (PLG) drive unit (LH).
Fail-safe	Stops the power liftgate (PLG) system operation.
Possible cause	Power liftgate (PLG) drive unit (LH) 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 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 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 (LH) malfunction Power liftgate (PLG) control module malfunction

Fig 1: PLG Drive Unit (LH) And PLG Control Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.