Auto Close Operation Not Performed: Notes

CAUTION:

If the power supply voltage of the power liftgate (PLG) control module is less than 5 V, the fail-safe function disables the power liftgate (PLG) system operation. To cancel the fail-safe function, it is necessary to disconnect and reconnect the negative battery terminal while the power supply voltage of the power liftgate (PLG) control module is 10.5 V or more.
If the negative battery terminal is disconnected with the power liftgate (PLG) fully opened or half-open, the auto open/close operation is disabled. In this case, it is necessary to perform the power liftgate (PLG) initial setting when the negative battery terminal is reconnected. (See POWER LIFTGATE (PLG) INITIALIZATION PROCEDURE .)

AUTO CLOSE OPERATION NOT PERFORMED [POWER LIFTGATE (PLG) SYSTEM] DESCRIPTION AND POSSIBLE CAUSES

Description	Auto close operation is not performed with the ignition switched ON (engine off or on).
Possible Causes	NOTE: The power liftgate may not operate under the following conditions: Vehicle is parked on a steep incline. Vehicle is parked on a steep decline. Strong winds are present. The power liftgate has a substantial amount of snow on it. Connector or terminal malfunction of the following parts: Body control module (BCM) Liftgate opener switch Power liftgate (PLG) front switch Instrument cluster Power liftgate (PLG) rear switch LF control unit Open circuit in liftgate opener switch signal circuit Open circuit in liftgate opener switch ground circuit Liftgate opener switch malfunction Open circuit in power liftgate (PLG) front switch signal circuit Open circuit in power liftgate (PLG) front switch ground circuit Power liftgate (PLG) front switch malfunction Open circuit in power liftgate (PLG) rear switch signal circuit Open circuit in power liftgate (PLG) rear switch ground circuit Power liftgate (PLG) rear switch malfunction Liftgate latch and lock actuator malfunction Power liftgate (PLG) front switch malfunction Power liftgate (PLG) drive unit malfunction Power liftgate (PLG) control module malfunction
Courtesy of MAZDA MOTORS CORP.