TCU monitors status of
"PCSV-A(SLT)" in order to maintain optimum gear shift.
TCU set this code, When
Solenoid-valves are not working normally.
Item
|
Detecting
Condition
|
Possible cause
|
DTC Strategy
|
| •
|
Check the current
range | |
| •
|
Line pressure solenoid
valve(SLT) |
|
Enable Conditions
|
| •
|
10.2V <Battery voltage
<15.5V |
| •
|
TCU communication =
normal | |
Threshold value
|
| •
|
Feed back current >
1358mA | |
Diagnostic Time
|
| •
|
more than 5 times × more than 0.1
sec | |
Fail Safe
|
| •
|
Self learning control is
inhibited |
| •
|
Adaptive control is
inhibited | |
| 1. |
Connect scantool to data link
connector(DLC). |
| 3. |
Monitor the "LINE PRESSURE SOLENOID
VALVE(SLT)" parameters on the scan
tool. |
| 4. |
Shift gear at each position.
|
| 5. |
Does the "LINE PRESSURE SOLENOID VALVE(SLT)"
follow the reference data?
|
|
▶ Fault is
intermittent caused by poor contact in the sensor's and/or
TCM(PCM)'s connector or was repaired and TCM(PCM) memory was
not cleared. Thoroughly check connectors for looseness, poor
connection, bending, corrosion, contamination, deterioration
or damage. Repair or replace as necessary and go to
"Verification of vehicle repair" procedure.
|
|
|
▶ Go to
"Terminal and connector inspection"
procedure.
|
|
| Terminal And Connector
Inspection |
| 1. |
Many malfunctions in the electrical system are
caused by poor harness and terminal condition. 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 of vehicle Repair"
procedure.
|
|
|
▶ Go to
"Signal circuit inspection"
procedure.
|
|
| Signal Circuit
Inspection |
| 1. |
Engine "OFF" IG KEY
"ON". |
| 3. |
Perform the continuity test between "LINE
PRESSURE SOLENOID VALVE(SLT)" terminal and chassis
ground.
Specification
: Not continuity
| |
| 4. |
Is resistance within
specifications?
|
|
▶ Go to
"Ground circuit inspection" procedure.
|
|
|
▶ Check for
short to ground in harness. Repair as necessary and Go to
"Verification of Vehicle Repair"
procedure.
|
|
| Ground Circuit
Inspection |
| 1. |
Engine "OFF" IG KEY
"ON". |
| 3. |
Perform the continuity test between Ground
terminal of "LINE PRESSURE SOLENOID VALVE(SLT)" and chassis
ground.
Specification
: Continuity
| |
| 4. |
Is resistance within
specifications?
|
|
▶ Go to
"Component Inspection" procedure.
|
|
|
▶ Check for
short to ground in harness. Repair as necessary and Go to
"Verification of Vehicle Repair"
procedure.
|
|
| 1. |
Engine "OFF" IG KEY
"OFF". |
| 3. |
Measure resistance both terminal of "LINE
PRESSURE SOLENOID VALVE(SLT)".
Specification
: Approx. 5.0~5.6Ω
(20°C)
| |
| 4. |
Is resistance within
specifications?
|
|
▶
Substitute with a known-good PCM/TCM and check for proper
operation. If the problem is corrected, replace PCM/TCM as
necessary and then go to "Verification of Vehicle Repair"
procedure.
|
|
|
▶ Replace
"LINE PRESSURE SOLENOID VALVE(SLT)" as necessary and Go to
"Verification of Vehicle Repair"
procedure.
|
|
NOTE)
When replacing the TCU,
must perform the N position learning and the Initial learning. (refer to
Troubleshooting's 'How to perform N position learning' and 'How to perform
initial learning')
| Verification of Vehicle
Repair |
After a repair, it is
essential to verify that the fault has been corrected.
| 1. |
Connect scan tool and select "Diagnostic
Trouble Codes(DTCs)" mode |
| 2. |
Using a scantool, Clear
DTC. |
| 3. |
Operate the vehicle within DTC Enable
conditions in General information. |
| 4. |
Are you DTCs present?
|
|
▶ Go to the
applicable troubleshooting procedure.
|
|
|
▶ System
performing to specification at this
time.
|
|
