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.
The ECM sets DTC B1102
if battery logic voltage measured at PTG module is less than threshold
value.
Item
|
Detecting
Condition
|
Possible Cause
|
DTC
Strategy
|
|
|
Enable
Conditions
|
| •
|
IGN 'ON' & Engine
'OFF' | |
Threshold
value
|
|
Detecting
time
|
|
FAIL
SAFE
|
| •
|
Inhibit powerdoor
operation | |
| 1. |
Connect scantool to Data Link
Connector(DLC). |
| 2. |
Ignition "ON" & engine
"OFF" |
| 3. |
Monitor the "Battery Logic Voltage" Parameter
on the Scantool.
Specification
: 8 ~ 17.25 V
|
|
| 4. |
Is the measured current data within
specifications?
|
|
▶ 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.
|
|
|
▶ Go to
"Inspection & Repair"
procedure.
|
|
| Terminal And Connector
Inspection |
| 1. |
Many malfunctions in the electrical system are
caused by poor harness and terminals.
Faults can also be caused by interference from
other electrical systems, and mechanical or chemical
damage. |
| 2. |
Thoroughly check connectors for looseness,
poor connection, bending, corrosion, contamination, deterioration,
or damage. |
| 3. |
Has a problem been found?
|
|
▶ Repair as
necessary and go to "Verification Vehicle Repair"
procedure.
|
|
|
▶ Go to
"W/Harness Inspection"
procedure.
|
|
| 1. |
Check sensing terminal of
alternator
| (2) |
Disconnect alternator
connector |
| (4) |
Measure voltage value between sensing
terminal of alternator and chassis ground.
Specification : 11.5~13.5V
| |
| (5) |
Is the measured voltage within
specifications?
|
|
▶ Go
to "Check lamp terminal of alternator "
procedure.
|
|
|
▶
Check for open in pertinent circuit harness and then go
to "Verification of Vehicle Repair"
procedure.
|
| |
| 2. |
Check lamp terminal of alternator
| (2) |
Disconnect alternator
connector |
| (4) |
Measure voltage value between lamp
terminal of alternator and chassis ground.
Specification :
10.5~12.0V
| |
| (5) |
Is the measured voltage within
specifications?
|
|
▶ Go
to "Check descent of voltage"
procedure.
|
|
|
▶
Check IG1 fuse in IPM (7.5A), alternator registor and
check for open in pertinent circuit harness and then go
to "Verification of Vehicle Repair"
procedure.
|
| |
| 3. |
Check descent of voltage
| (1) |
Ignition "ON" & Engine
"ON" |
| (2) |
Measure voltage value between terminal
of alternator and "+" terminal of battery.
Specification : 0.2V
or less
| |
| (3) |
Is the measured voltage within
specifications?
|
|
▶ Go
to "Component Inspection " procedure.
|
|
|
▶
Check for corrosion and deterioration.of alternator
cable. 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). |
| (3) |
Operate headlamp, rear defogger, blower
motor. |
| (4) |
Measure voltage value of battery at 2000
RPM
Specification : 12.5~14.5V
|
|
| (5) |
Is the measured voltage within
specifications?
|
|
▶ Go
to "Check PTG" procedure.
|
|
|
▶
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.
|
| |
| 2. |
Check PTG
| (1) |
Connect scantool to Data Link
Connector(DLC). |
| (2) |
Ignition "ON" & engine
"OFF" |
| (3) |
Substitute with a known-good PTG and
Check if the DTC is erased |
| (4) |
Is the DTC erased?
|
|
▶
Substitute with a known-good PTG and check for proper
operation.
If the problem is
corrected, replace PTG and then go to "Verification of
Vehicle Repair" procedure.
|
|
|
▶
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.
|
| |
| 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.
|
|
