DIAGNOSIS <TC-SST>
TSB Revision
TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST)
22C-249
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2721 set?
YES : Replace the TC-SST assembly. (Refer to
P.22C-341
.)
NO : Intermittent malfunction. (Refer to GROUP 00
− How
to Cope with Intermittent Malfunction
P.00-15
.)
DTC P2727: Clutch/Shift Pressure Solenoid 2 System (Open circuit)
CAUTION
• If there is any problem in the CAN bus lines,
an incorrect diagnostic trouble code may be
set. Prior to this diagnosis, diagnose the CAN
bus lines.
• Whenever the ECU is replaced, ensure that
the CAN bus lines are normal.
.
DIAGNOSTIC FUNCTION
TC-SST-ECU checks that the clutch/shift pressure
solenoid 2 circuit is normal.
.
DESCRIPTIONS OF MONITOR METHODS
The clutch/shift pressure solenoid 2 circuit is deter-
mined to be open.
.
MONITOR EXECUTION
• Continuous
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Clutch 2 pressure sensor system (Poor
performance)
• P0847: Clutch 2 pressure sensor system (Output
low range out)
• P0848: Clutch 2 pressure sensor system (Output
high range out)
• P2809: Clutch/shift switching solenoid 2, spool
stuck
• P2812: Clutch/shift switching solenoid 2 system
(Open circuit)
• P2814: Clutch/shift switching solenoid 2 system
(Short to ground)
• P2815: Clutch/shift switching solenoid 2 system
(Short to power supply)
• P181B: Clutch 1 (Pressure low range out)
• P181C: Clutch 1 (Pressure high range out)
• P1859: Disengagement too late with clutch 1
• P181E: Clutch 2 (Pressure low range out)
• P181F: Clutch 2 (Pressure high range out)
• P185B: Disengagement too late with clutch 2
Sensor (The sensor below is determined to be
normal)
• Clutch 2 pressure sensor
• Clutch/shift switching solenoid 2
.