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DTC P0756/46 SHIFT VALVE 2 SYSTEM

FUNCTION EXPLANATION

Eight pressure switches are installed in the valve body. The oil passages in the valve body are switched according to the operation status of each solenoid, each shift valve, and each control valve etc., and the pressure switches are switched ON or OFF. Pressure switch 3 operates according to the status of solenoid S1 and shift valve No. 1, pressure switch 4 operates according to the status of solenoid S2 and shift valve No. 2, pressure switch 5 operates according to the status of solenoid S3 and shift valve No. 3, and pressure switch 6 operates according to the status of solenoid S3 and shift valve No. 4. The transmission control computer ASSY puts out diagnostic codes when trouble occurs in this PSW3 signal system, PSW4 signal system, PSW5 signal system, PSW6 signal system, or in the solenoid or shift valve system.

DTC No.
  1. Diagnosis conditions
  2. Trouble status
  3. Trouble length
Inspection part
P0751/45
  1. Engine rotating
  2. The hydraulic switch (PSW3) does not become ON although solenoid S1 becomes ON.
  3. 0.5 seconds or more
  • Wire harness and connector (PSW3 signal system)
  • Automatic transmission ASSY (PSW3)
  • Transmission solenoid ASSY (S1)
  • Transmission control computer ASSY
P0756/46
  1. Engine rotating
  2. The hydraulic switch (PSW4) does not become ON although solenoid S2 becomes ON.
  3. 0.5 seconds or more
  • Wire harness and connector (PSW4 signal system)
  • Automatic transmission ASSY (PSW4)
  • Transmission solenoid ASSY (S2)
  • Transmission control computer ASSY
P0761/47
  1. Engine rotating
  2. The hydraulic switch (PSW5) does not become ON although solenoid S3 becomes ON.
  3. 0.5 seconds or more
  • Wire harness and connector (PSW5 signal system)
  • Automatic transmission ASSY (PSW5)
  • Transmission solenoid ASSY (S3)
  • Transmission control computer ASSY
P0761/48
  1. Engine rotating
  2. The hydraulic switch (PSW6) does not become ON although solenoid S4 becomes ON.
  3. 0.5 seconds or more
  • Wire harness and connector (PSW6 signal system)
  • Automatic transmission ASSY (PSW6)
  • Transmission solenoid ASSY (S4)
  • Transmission control computer ASSY

CIRCUIT DIAGRAM

INSPECTION PROCEDURE

1. CONFIRM DIAGNOSTIC CODE

Detail

2. INSPECT TRANSMISSION CONTROL COMPUTER ASSY BY ITSELF (INSPECT VOLTAGE)

Detail

3. INSPECT WIRE HARNESS AND CONNECTOR (TRANSMISSION CONTROL COMPUTER ASSY - TRANSMISSION WIRE)

Detail

4. INSPECT TRANSMISSION WIRE BY ITSELF (PSW3, PSW4, PSW5, PSW6)

Detail

DTC Clear

Detail