Contents Wiring diagrams Section: Automatic Trans All sections

Automatic Transaxle System: Overview Hyundai Accent II

Automatic Trans 70 illustrations ~852 words

SELECTOR LEVER OPERATION CHECK

  1. Shift the selector lever to each range and check to see that the lever moves smoothly and is controlled. Check to see that the position indicator is correct.
  2. Check to be sure that the selector lever can be shifted to each position.
  3. Start the engine and check to see if the vehicle moves forward when the selector lever is shifted from "N" to "D" and moves backward when shifted to "R".
  4. When the shift lever malfunctions, adjust the control cable and the selector lever sleeve. Check for worn shift lever assembly sliding parts.

Scheme 29

Scheme 29: TRANSAXLE RANGE SWITCH ADJUSTMENT

Scheme 30

Scheme 30

Scheme 31

Scheme 31
  1. Place selector lever in "N" (Neutral) position.
  2. Loosen the manual control lever lock nut to separate the cable and lever.
  3. Place the manual control lever in the "N" (Neutral) position.
  4. Turn the transaxle range switch body until the 12 mm (0.47 in) wide end of the manual control lever aligns with the switch body flange [12 mm (0.472 in.) wide portion].
  5. Tighten the attaching bolts (2 PCS.) to the specified torque. Transaxle Range Switch Attaching Bolt: 10-12 Nm (100-120 kg.cm, 7-9 lb.ft) NOTE: When setting up the switch body, be careful that the O-ring does not drop from the switch body. Tighten the attaching bolts carefully.
  6. Make sure that the selector lever is in the "N" (Neutral) position.
  7. Adjust the flange nut so that there is no slack in the control cable and make sure that the selector lever operates smoothly.
  8. Run the vehicle and confirm that the transaxle is set in each range when the selector lever is shifted to each position.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTCDefinition
P0707Transaxle Range Switch - Open/Shorted To Ground
P0708Transaxle Range Switch - Shorted
P0712Fluid Temperature Sensor System
P0713Fluid Temperature Sensor System
P0717Pulse Generator "A"
P0722Pulse Generator "B"
P0731First Gear Incorrect Ratio
P0732Second Gear System
P0733Third Gear System
P0734Fourth Gear System
P0741Damper Clutch System - Stuck Off
P0742Damper Clutch System - Stuck On
P0743Damper Clutch Control Solenoid - Open/Shorted
P0745Pressure Control Solenoid Valve "A"
P0750Shift Control Solenoid Valve "A"
P0755Shift Control Solenoid Valve "B"
P0760Shift Control Solenoid Valve "C"
P0775Pressure Control Solenoid Valve "B"
P1709Kickdown Servo Switch

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

Scheme 32

Scheme 32: P0712/P0713: Fluid Temperature Sensor System

Scheme 33

Scheme 33: CIRCUIT DIAGRAM

Scheme 34

Scheme 34

Scheme 35

Scheme 35: P1709: Kickdown Servo Switch

DESCRIPTION

  1. Detects the point of time when K/D band starts operation to control fluid pressure when K/D band operates.

Scheme 36

Scheme 36: TROUBLESHOOTING GUIDE

Scheme 37

Scheme 37: CIRCUIT DIAGRAM

Scheme 38

Scheme 38

Scheme 39

Scheme 39: P0717: Pulse Generator "A"
  1. Detects non-operating area of damper clutch.
  2. Detects turbine RPM for control of fluid pressure during a shift.

Scheme 40

Scheme 40: TROUBLESHOOTING GUIDE

Scheme 41

Scheme 41: CIRCUIT DIAGRAM

Scheme 42

Scheme 42

Scheme 43

Scheme 43: P0722: Pulse Generator "B"
  1. Detects number of revolutions of the transfer driven gear to monitor vehicle speed.

Scheme 44

Scheme 44: TROUBLESHOOTING GUIDE

Scheme 45

Scheme 45: CIRCUIT DIAGRAM

Scheme 46

Scheme 46

Scheme 47

Scheme 47: P0750: Shift Control Solenoid Valve "A"
  1. Control fluid pressure that is acting on the shift control valve (SCV) through ON/OFF signals from the PCM to control shifting.

Scheme 48

Scheme 48: TROUBLESHOOTING GUIDE

Scheme 49

Scheme 49: CIRCUIT DIAGRAM

Scheme 50

Scheme 50

Scheme 51

Scheme 51: P0755: Shift Control Solenoid Valve "B"
  1. Controls fluid pressure that is acting on the shift control valve (SCV) through ON/OFF signals from the PCM to control shifting.
  2. If resistance value of SCSV-B is too high or low, P0755 is output (open or short circuit).

Scheme 52

Scheme 52: TROUBLESHOOTING GUIDE

Scheme 53

Scheme 53: CIRCUIT DIAGRAM

Scheme 54

Scheme 54

Scheme 55

Scheme 55: P0760: Shift Control Solenoid Valve "C"
  1. Controls fluid pressure that is acting on the control switch valve (CSV) through ON/OFF signals from the PCM to control shifting
  2. If resistance value of SCSV-C is high, P0760 is output (open circuit).

Scheme 56

Scheme 56: TROUBLESHOOTING GUIDE

Scheme 57

Scheme 57: CIRCUIT DIAGRAM

Scheme 58

Scheme 58

Scheme 59

Scheme 59: P0707: Transaxle Range Switch - Open/Shorted To Ground; P0708: Transaxle Range Switch - Shorted

The PCM monitors this voltage, which corresponds to the position of the transaxle gear shift lever to determine desired gear and electronic pressure. The transaxle range switch is located on the top of the transaxle, and also contains the neutral/start circuit.

Scheme 60

Scheme 60: TROUBLESHOOTING GUIDE

Scheme 61

Scheme 61: CIRCUIT DIAGRAM

Scheme 62

Scheme 62

Scheme 63

Scheme 63: P0745: Pressure Control Solenoid Valve "A"
  1. Controls fluid pressure that is acting on the pressure control valve-A (PCV-A) through Pulse Width Modulation signals from the PCM to control pressure during a shift.

Scheme 64

Scheme 64: TROUBLESHOOTING GUIDE

Scheme 65

Scheme 65: CIRCUIT DIAGRAM

Scheme 66

Scheme 66

Scheme 67

Scheme 67: P0775: Pressure Control Solenoid Valve "B"
  1. Controls fluid pressure that is acting on the pressure control valve-B (PCV-B) through Pulse Width Modulation signals from the PCM to control pressure during a shift.

Scheme 68

Scheme 68: TROUBLESHOOTING GUIDE

Scheme 69

Scheme 69: CIRCUIT DIAGRAM

Scheme 70

Scheme 70

Scheme 71

Scheme 71: P0741: Damper Clutch System - Stuck Off; P0742: Damper Clutch System - Stuck On; P0743: Damper Clutc
  1. Controls fluid pressure that is acting on the damper clutch control valve through Pulse Width Modulation signals from the PCM to control the operation of the damper clutch.
  2. If damper clutch solenoid drive duty continues at 100% for 4 SEC. or more, there is an abnormality in the damper clutch control system at DTC P0743 is output.

Scheme 72

Scheme 72: TROUBLESHOOTING GUIDE

Scheme 73

Scheme 73: TROUBLESHOOTING FLOW

Scheme 74

Scheme 74: P0731: First Gear Incorrect Ratio
  1. If the value resulting from driving the PG-A output (input shaft rotation speed) by the 1st gear ratio does not match the PG-B output (output shaft rotation speed) after 1st gear is engaged, DTC P0731 is output.

Scheme 75

Scheme 75: TROUBLESHOOTING GUIDE

Scheme 76

Scheme 76: TROUBLESHOOTING FLOW

Scheme 77

Scheme 77

Scheme 78

Scheme 78: P0732: Second Gear System
  1. If the value resulting from driving the PG-A output (input shaft rotation speed) by the 2nd gear ratio does not match the PG-B output (output shaft rotation speed) after 2nd gear is engaged, DTC P0732 is output.

Scheme 79

Scheme 79: TROUBLESHOOTING GUIDE

Scheme 80

Scheme 80: TROUBLESHOOTING FLOW

Scheme 81

Scheme 81

Scheme 82

Scheme 82: P0733: Third Gear System
  1. If the value resulting from driving the PG-A output (input shaft rotation speed) by the 3rd gear ratio does not match the PG-B output (output shaft rotation speed) after 3rd gear is engaged, DTC P0733 is output.

Scheme 83

Scheme 83: TROUBLESHOOTING GUIDE

Scheme 84

Scheme 84: TROUBLESHOOTING FLOW

Scheme 85

Scheme 85

Scheme 86

Scheme 86: P0734: Fourth Gear System
  1. If the value resulting from driving the PG-A output (input shaft rotation speed) by the 4th gear ratio does not match the PG-B output (output shaft rotation speed) after 4th gear is engaged, DTC P0734 is output.

Scheme 87

Scheme 87: TROUBLESHOOTING GUIDE

Scheme 88

Scheme 88: TROUBLESHOOTING FLOW

Scheme 89

Scheme 89

Scheme 90

Scheme 90: NEUTRAL & PARK

Scheme 91

Scheme 91: DRIVE (FIRST)

Scheme 92

Scheme 92: DRIVE (SECOND)

Scheme 93

Scheme 93: DRIVE (THIRD)

Scheme 94

Scheme 94: DRIVE (FOURTH)

Scheme 95

Scheme 95: REVERSE

Scheme 96

Scheme 96: MANUAL VALVE

Scheme 97

Scheme 97

Scheme 98

Scheme 98