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DIAGNOSIS <TC-SST> TSB Revision TWIN CLUTCH- SPORTRONIC SHIFT TRANSMISSION (TC-SST) 22C-53 DIAGNOSTIC PROCEDURE Required Special Tools: • MB991958 Scan Tool (M.U.T.-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) STEP 1. Scan tool CAN bus diagnostics YES : Go to Step 2. Troubleshooting .) After repairing the CAN bus line, go to Step 2. STEP 2. Check whether the DTC is reset. YES : Replace the mechatronic assembly. (Refer to .) NO : Intermittent malfunction. (Refer to GROUP 00 − How to Cope with Intermittent Malfunction .) DTC P0843: Clutch 1 Pressure Sensor System (Output high range out) CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be • Whenever the ECU is replaced, ensure that the CAN bus lines are normal. . DIAGNOSTIC FUNCTION TC-SST-ECU checks that the clutch 1 pressure sen- . DESCRIPTIONS OF MONITOR METHODS The output of the clutch 1 pressure sensor is too . MONITOR EXECUTION • Continuous . MONITOR EXECUTION CONDITIONS Other Monitor (There is no temporary DTC stored in memory for the item monitored below) • P0841: Clutch 1 pressure sensor system (Poor performance) • P0842: Clutch 1 pressure sensor system (Output low range out) • P0753: Shift select solenoid 1 system (Open cir- cuit) • P0973: Shift select solenoid 1 system (Short to ground) • P0974: Shift select solenoid 1 system (Short to power supply) • P2733: Clutch/shift switching solenoid 1, spool stuck • P2736: Clutch/shift switching solenoid 1 system (Open circuit) • P2738: Clutch/shift switching solenoid 1 system (Short to ground) • P2739: Clutch/shift switching solenoid 1 system (Short to power supply) • P181B: Clutch 1 (Pressure low range out) |