Power
Tailgate(hereinafter PTG) is the system which moves tailgate of vehicle by
electronic motor so that user can open or close door with less force than
required on manual operation. After turned on, PTG ECU monitors vehicle
speed signal from VSS directly. When power gate open signal is recieved,
PTG ECU checks vehicle speed before operation and if vehicle speed is
above 5Km/h(3.10MPH), PTG ECU cancels power gate operation command for
safty (but In case of IG "ON", if shift lever is in 'P' or 'N' position,
power door operation is not prohibited)
The ECM sets DTC B1580
if starts switch "ON" signal lasts for 30 sec.
Item
|
Detecting
Condition
|
Possible Cause
|
DTC
Strategy
|
|
| •
|
Short to battery in signal
harness |
|
Enable
Conditions
|
| •
|
IGN "ON" & ENG "OFF" & PTG
"ON" | |
Threshold
value
|
|
Detecting
time
|
|
FAIL
SAFE
|
-
|
| 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 B1580 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.
|
|
| 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.
|
|
| Signal Circuit
Inspection |
| 1. |
Check for short in IGN S/W → IPM signal
harness
| (1) |
Ignition "ON" & engine
"OFF". |
| (2) |
Disconnect "I/P-C"
connector. |
| (3) |
Turn the "IG KEY" to "START" and Check
the voltage between starting signal of "I/P-C" and chassis
ground.
Specification : IGN
"STARTING" → 12V
| |
| (4) |
Is the measured voltage within
specifications?
|
|
▶ Go
to "Check Signal short" procedure.
|
|
|
▶
Check for short to battery in signal harness. Repair as
necessary and go to "Verification of Vehicle Repair"
procedure.
|
| |
| 2. |
Check Signal short
| (1) |
Ignition "ON" & engine
"OFF" |
| (2) |
Check the resistance between starting
signal terminal of "I/P-C" and starting signal terminal of
"PTG" module.
|
| (3) |
Is the measured resistance within
specifications?
|
|
▶ Go
to "Check IPM" procedure.
|
|
|
▶
Check for short to battery in signal harness. Repair as
necessary and go to "Verification of Vehicle Repair"
procedure.
|
| |
| 3. |
Check IPM
| (1) |
Connect scantool to Data Link
Connector(DLC). |
| (2) |
Ignition "ON" & engine
"OFF" |
| (3) |
Substitute with a known-good IPM and
Check if the DTC is erased. |
| (4) |
Is the DTC erased?
|
|
▶
Substitute with a known-good IPM and check for proper
operation.
If the problem is
corrected, replace IPM and then go to "Verification of
Vehicle Repair" procedure.
|
|
|
▶ Go
to "Check PTG"
procedure.
|
| |
| 4. |
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.
|
|
