Power Tail
Gate(hereinafter PTG) is the system which moves tail gate of vehicle by
electronic motor so that user can open or close door with less force than
required on manual operation. PTG consists of drive unit, handle, switch,
warning buzzer, anti pinch(right/left) and cinch/latch(2 switch each).
Drive unit is located at left D pillar (quater panel). It is core part of
PTG that drives leg which is connected with push rod by force of motor to
move tail gate. beside that Drive unit consists of PTG ECU, motor,push
rod, channel, clutch and two optical sensor When power gate open signal is
recieved, PTG ECU operates motor of drive unit and pinion gear transmits
drive force of motor into an up-and-down motion of leg. according to
motion of leg, push rod move vertically to move gate. Optical sensor
monitors these system operation and delivers it to PTG ECU.
The ECM sets DTC B1645
if the door dosen't move to intended position within specificated time at
power mode operation.
Item
|
Detecting
Condition
|
Possible Cause
|
DTC
Strategy
|
| •
|
Check door operating cycle
time | |
|
Enable
Conditions
|
| •
|
IGN "ON" & ENG "OFF" & PTG
"ON" | |
Threshold
value
|
| •
|
Open cycle time : 7.0±2.0
sec
Close cycle time : 8.5±2.0
sec | |
Detecting
time
|
-
|
FAIL
SAFE
|
| •
|
Inhibit powerdoor
operation | |
| 1. |
Connect scantool to Data Link
Connector(DLC). |
| 2. |
Ignition "ON" & engine "OFF" & PTG
"ON" |
| 3. |
Selet "Diagnostic Trouble Codes(DTCs)"mode and
monitor "DTC Status" parameter
|
| 4. |
Is the DTC B1645 present?
|
|
▶ Go to
"Inspection & Repair" procedure.
|
|
|
▶ 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.
|
|
| 1. |
Check battery
| (1) |
Connect scantool to Data Link
Connector(DLC). |
| (2) |
Ignition "ON" & engine "OFF" &
PTG "ON" |
| (3) |
Monitor the "Battery Power Voltage"
Parameter on the Scantool.
Specification : at
starting → 9.5V or more , on moving → 8.0V or
more
|
|
| (4) |
Is the measured current data within
specifications?
|
|
▶ Go
to "Check drive unit" procedure.
|
|
|
▶
Substitute with a known-good battery and check for
proper operation.If the problem is corrected, replace
battery and then go to "Verification of Vehicle Repair"
procedure.
|
| |
| 2. |
Check drive unit
| (1) |
Ignition "ON" & engine "OFF" &
PTG "ON". |
| (2) |
Position the door at full open or
primary latch position |
| (3) |
Measure cycle time while Operating the
door to the reverse of currnet position by power
mode.
Specification : Open
cycle time → 7.0±2.0 sec, Close cycle time → 8.5±2.0
sec.
| |
| (4) |
Is the measured cycle time within
specifications?
|
|
▶
Check cable and part for looseness, poor connection,
bending, corrosion, contamination, deterioration, or
damage. Repair or replace as necessary and then go to
"Verification of Vehicle Repair"
procedure.
|
|
|
▶
Substitute with a known-good drive unit and check for
proper operation.If the problem is corrected, replace
drive unit 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 selet "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 ?
|
|
▶ Go to the
applicable troubleshooting procedure.
|
|
|
▶ System is
performing to specification at this
time.
|
|
