Failure Check-up Elements |
1. |
Manual operation
Check if the sliding door operates manually. Shift to ''OFF''
from the Overhead console switch. Check if the door is installed
properly by moving it manually, and check the latch load. Check for any
interfering objects with other parts including latch striker, trim and
weather seal. |
2. |
Vehicle battery voltage
Check if the battery is fully charged. Power Sliding Door is
an electric component and requires minimal battery voltage for
operation. Check for battery voltage of PSDM, and if the voltage is
beyond the required minimal range, control the operation. |
3. |
Fuse
Three fuses detect and protect of power supply of PSDM. Two
of them controls motive power while the other controls program. Check if
these fuses are connected properly.
When one or two motive power fuse are damaged, the vehicle
status will become ‘Sleep’, & ‘Wake-up’, and there will be
‘B24AE’ which means fuse damage of the power sliding door module,
and the operation will be halted. |
4. |
Repetition
Check if the owner of the car has operated the Power Sliding
Door repeatedly while the vehicle’s ignition is turned off. If the
battery is discharged, PSDM’s power operation will be controlled. |
5. |
Operation on a steep ramp
Check if the Power Sliding Door was frequently operated while
the vehicle was parked on a steep ramp of over 17 degrees. Operating
the power sliding door on a steep ramp may result in malfunctions due to
gravity or damage the condition of the car (tilted or curved). |
6. |
Detection of obstacles
Obstacle detection cannot be adjusted. Elements that affect
obstacle detection include tilting, battery voltage, and dust jammed in
sliding door track. |
7. |
Outer handle response time
When the car is parked and the ignition is turned off, there
might be delay after outer handle is pulled before the power operation.
This is due to a required period as PSDM is prepared before the power
open operation, checking for normal operation which is not a problem. |
8. |
Difference between right and left door operation
The operation of sliding doors may differ. Time for opening
and closing, and obstacle detection can differ between right and left
doors. |
9. |
Failure analysis equipment
Connect the analysis device to OBD terminal and inspect the power sliding door.
(Power sliding door can use B-CAN, but BCM acts as a gateway, and can communicate through C-CAN.) |
Symptom | Expected factor | Corrective measure |
When power sliding door is suddenly opened due to malfunction. | When the door is operated by accident or fault is generated in open/close switch. | Check if there''s no damage or disconnect in switch |
Latch assembly fault generated | Check for wiring connection | |
Check for switch status through analyzing device with service data | ||
Power sliding door module or body control module faults generated | Reset
the power sliding door function by detaching and reinstalling battery
or fuse. Check for the wire connection, and inspect in accordance with
the DTC procedure. | |
When the power sliding door does not open or close automatically | The vehicle is not in "P" or in a wrong switch condition. | Check for switch status with analyzing device |
When the battery voltage is too low for power sliding door module. Higher than 10.5V and 7.5V are required to start and keep the operation , respectively | Check for the power sliding door module battery, and charge the battery | |
Fuse faultion (one or two fuses) | Check for the fuse faultion | |
Body control module or power sliding door module''s faults are generated | Check for DTC code | |
Latch assembly fault | Check for wiring connection and fuse | |
Check for outer elements that interfere latch assembly operation | ||
Motor assembly fault | Test for motor assembly operation | |
Bent or attached components | Replace the faulted parts | |
Malfunction of anti-pinch strip (especially when the door does not close | Check of anti-pinch strip and wiring | |
Defect of wiring | Check for fault, referring the whole circuit | |
When power is disappeared during the sliding door operation | Defect of wiring | Check for fault in the entire circuit |
When the battery voltage is too low for Power Sliding Door module Higher than 10.5V and 7.5V are required to start and keep the operation , respectively | Check for the power sliding door module battery, and charge the battery | |
When there''s malfunction in body control module or power sliding module | Check for DTC code | |
Motor assembly fault | Test for motor assembly operation | |
When the sliding door is not closed to 1 stage closed latch position | Door alignment fault Reaction force is normal when the maximum voltage is less than 30A at GDS | Check for latch and striker alignment |
Defect of alignment of the stopper | ||
Check for roller and track alignment | ||
Bent or attached components | Check for Installed area and replace a required part | |
When there''s malfunction in body control module or power sliding module | Check for DTC code | |
When repelling the power of sliding door seal is too strong When the maximum voltage is beyond 30A at GDS | Check for any effect from door seal fault, problem in assembly, or foreign object from outside | |
Motor assembly fault | Test for motor assembly operation | |
When closing latch is not unfastened at stage 1 lock position | The vehicle is not in "P" or in a wrong switch condition. | Check for switch status with analyzing device |
When the battery voltage is too low of Power Sliding Door module Higher than 10.5V and 7.5V are required to start and keep the operation , respectively | Check for the power sliding door module battery, and charge the battery | |
Fuse fault | Check for the fuse fault | |
Assembly fault at closing latch | Check switch with analyzing device | |
Check if there''s any cause that interferes with latch assembly function or any damaged parts | ||
Resolve the problem using service data, and replace the latch assembly if needed | ||
Defect of inside and outside handle switch joint | Check for the handle connection of a remote controller | |
When there''s malfunction in body control module or power sliding module | Check for DTC code | |
Bent or attached components | Check for Installed area and replace a required part | |
Check GDS if the CAN signal is normal | Check for sensor output | |
Closing latch is not unfastened at stage 1 locked position while the door is operated normally in manual mode | Unlatch actuator | Check and re-adjust unlatch actuator Replace if needed |
When Power Sliding Door is not operated through wireless transmitter or Overhead console switch | Defect of fuse (disconnection) | Check the fuse and replace |
When the battery voltage is too low for Power Sliding Door module Higher than 10.5V and 7.5V are required to start and keep the operation , respectively | Check for the power sliding door module battery, and charge the battery | |
Defect of wiring | Check for fault, referring the whole circuit | |
Malfunction of power unlatch | Defect on latch assembly | Check for outer elements that interferes latch assembly operation |
Check for service data | ||
Check for detent and primary switch | ||
Resolve the problem by referring analyzing procedure | ||
Defect of actuator that unlocks locked latch | Check the actuator and replace | |
Defect of wiring | Check for fault, referring the whole circuit | |
Default of body control module(BCM) | Resolve the problem by referring analyzing procedure | |
Replace BCM if needed | ||
Defect of the wireless transmitter | Program modification of the wireless transmitter program | |
Replace the wireless transmitter if needed | ||
Defect of the Power Sliding Door control module | Check for DTC code Resolve the problem by referring analyzing procedure | |
Defect of the Power Sliding Door motor assembly | Check for outer elements that interferes motor assembly operation | |
Check for wiring connection | ||
Replace drive unit | ||
Resolve the problem by referring analyzing procedure, and replace a motor if needed | ||
When sliding door cannot maintain the open position | Defect on hold open latch | Check if the sliding door is operated in power open while in the hold open latch mode |
Check if the hold open latch is in operation | ||
When excessive force is required using in/outside handle | Tangled cables | Check if it operates manually |
Check that there is no damage | ||
When driving part is tightly closed and cannot be separated | Resolve the problem by referring analyzing procedure, and replace the unit assembly if needed | |
Bent or attached components | Check for Installed area and replace a required part | |
When the sliding door keeps closing automatically | Defect on locking latch assembly | Check for detent and primary switch and wiring connection |
Check for any alien object that interferes operation | ||
Resolve the problem by referring analyzing procedure | ||
Defect on Power Sliding Door module | Check for DTC code | |
Defect on wiring (system or vehicle related) | Resolve the problem by referring the whole circuit | |
When sliding door keeps opening automatically | Defect on Power Sliding Door module | Resolve the problem by checking DTC code and referring the analyzing procedure |
Defect on wiring (system or vehicle related) | Resolve the problem by referring the whole circuit | |
Defect on Power Sliding Door assembly (Hall censor) | Defect on sensor output and DTC | |
Operation of the sliding door is too slow | When the battery voltage is too low for Power Sliding Door module Higher than 10.5V and 7.5V are required to start and keep the operation , respectively | Check for the power sliding door module battery, and charge the battery |
Tangled cables | Unit replacement if needed | |
Bent or attached components | Check the installed area and replace parts as needed | |
When operating the sliding door on a steep slope | Operate the sliding door manually | |
Defect on the sliding door motor | Replace the motor assembly if needed | |
Noise, friction and vibration sound | Existence of alien object inside of the sliding door | Eliminate the object |
When parts are worn out or loose | Check the loose parts and tightly fasten or replace |
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