PSD

B1621

Component Location:

General Description
Power sliding door (hereinafter PSD) is the system which moves sliding door of vehicle by electronic motor so that user can open or close door with less force than required on manual operation. PSD consists of drive unit, center roller/rail, handle and various kinds of switch (anti pinch, detent, latch), Drive unit is located at rear quarter panel that is between C pillar and D pillar. It is core part of PSD that drives cable by force of motor to move sliding door, beside that Drive unit consists of PSD ECU.door motor.clutch,optical sensor.cable and warning buzzer.

DTC Description
The ECM sets DTC B1621 if there's any fault in PSD ECU

DTC Detecting Condition:

Schematic Diagram (Part 1):

Schematic Diagram (Part 2):

Monitor Scantool Data
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF" & PSD "ON"
3. Select "Diagnostic Trouble Codes (DTCs)" mode and monitor "DTC Status" parameter.






4. Is the DTC B1621 present?

YES - Go to "Inspection & Repair" procedure.

NO - Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

Component Inspection
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF" & PSD "ON"
3. Erase the DTC.
4. Is the DTC erased?

YES - Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

NO - Substitute with a known-good PSD and check for proper operation.If the problem is corrected, replace PSD and then go to "Verification of Vehicle Repair" procedure.

Verification of Vehicle Repair
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the scantool.
3. Are any DTCs present?

YES - Go to the applicable troubleshooting procedure.

NO - System is performing to specification at this time.