P2812
DTC P2812: Clutch/Shift Changeover 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 changeover solenoid 2 circuit is normal.
DESCRIPTIONS OF MONITOR METHODS
The clutch/shift changeover solenoid 2 circuit is determined 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)
^ 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)
^ P2809: Clutch/shift switching solenoid 2, spool stuck
^ P2814: Clutch/shift switching solenoid 2 system (Short to ground)
^ P2815: Clutch/shift switching solenoid 2 system (Short to power supply)
^ P181E: Clutch 2 (Pressure low range out)
^ P181F Clutch 2 (Pressure high range out) P18513: Disengagement too late with clutch 2
Sensor (The sensor below is determined to be normal)
^ Clutch/shift switching solenoid 1
LOGIC FLOW CHARTS (Monitor Sequence)
DTC SET CONDITIONS
Check Conditions
^ Voltage of battery: 8 V or more.
^ Voltage of battery: 16.5 V or less.
JUDGMENT CRITERIA
^ FET (Field Effect Transistor) output: 1 V or more. (400 millisecond)
OBD-II DRIVE CYCLE PATTERN
The FET channel output remains 1 V or less for 400 milliseconds.
PROBABLE CAUSES
^ Malfunction of TC-SST-ECU
DIAGNOSTIC PROCEDURE
STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES: Go to Step 2.
NO: Repair the CAN bus lines. After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. P2812 set?
YES: Replace the TC-SST assembly.
NO: Intermittent malfunction.