Hyundai Santa Fe (2006 year). Manual — part 88

ATA -110

AUTOMATIC TRANSAXLE (A5HF1)

DTC P0755 SHIFT CONTROL SOLENOID VALVE B CIRCUIT MALFUNCTION

COMPONENT LOCATION

E7C0CAFC

AKKF118G

GENERAL DESCRIPTION

EDA36EBC

The Automatic transmission changes the gear position of the transmission by utilizing a combination of clutches and
brakes, which are controlled by solenoid valves. This automatic transmission consists of a: LR (Low and Reverse Brake),
2ND (2nd Brake), UD (Under Drive Clutch), OD (Over Drive Clutch), REV (Reverse Clutch), and a RED (Reduction Brake,
only for 5 speed transmissions).
The UD Clutch is engaged in the 1st gear, 2nd gear and 3rd gear positions.

DTC DESCRIPTION

EE4CCE54

The TCM checks the Under Drive Clutch Control Signal by monitoring the feedback signal from the solenoid valve drive
circuit. If an unexpected signal is monitored (for example, high voltage is detected when low voltage is expected, or low
voltage is detected when high voltage is expected), the TCM judges that Under Drive control solenoid circuit is malfunc-
tioning and sets this code.

DTC DETECTING CONDITION

E2CC19A0

Item

Detecting Condition

Possible cause

DTC Strategy

• Check voltage range

Enable Conditions

• Not being control for "N-D or N-R"
• Voltage of AT relay ≥ 10V
• Not Fail Safe Status
• IG "ON"

Threshold value

• Out of available voltage range

Diagnostic Time

• more than 320 ms

Fail Safe

• Locked in 3 rd gear.(Control relay off)

• Open or short in circuit
• Faulty UD SOLENOID

VALVE

• Faulty PCM/TCM

SPECIFICATION

E6666FEF

Refer to DTC P0743.

AUTOMATIC TRANSAXLE SYSTEM

ATA -111

SIGNAL WAVEFORM

EFCFA1B5

FIG.1)

FIG.1) : "N"

"D"

EKBF118A

MONITOR SCANTOOL DATA

EFBBD1ED

1.

Connect scantool to data link connector(DLC)

2.

Engine "ON".

3.

Monitor the "UD SOL. VALVE" parameter on the scantool.

4.

Shift gear at each position.

ATA -112

AUTOMATIC TRANSAXLE (A5HF1)

FIG.1)

FIG.2)

FIG. 1) P,N
FIG. 2) "R"
FIG. 3) "D 1st" gear
FIG. 4) "2nd" gear
FIG. 5) "3rd" gear
FIG. 6) "4th" gear
FIG. 7) "5th" gear

FIG.3)

FIG.4)

FIG.5)

FIG.6)

FIG.7)

LKKG209F

AUTOMATIC TRANSAXLE SYSTEM

ATA -113

5.

Does "UD SOLENOID DUTY " follow the reference data?

YES

▶ Fault is intermittent caused by poor contact in the sensor’s and/or TCM(PCM)’s connector or was repaired and
TCM(PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, cor-
rosion, contamination, deterioration or damage. Repair or replace as necessary and go to "Verification of vehicle
repair" procedure.

NO

▶ Go to "Terminal＆connector inspection" procedure.

TERMINAL & CONNECTOR INSPECTION

E2752FCE

Refer to DTC P0743.

POWER SUPPLY CIRCUIT INSPECTION

E33A3FB4

1.

Disconnect "A/T SOLENOID VALVE" connector.

2.

Measure voltage between terminal "5" of the sensor harness connector and chassis ground.

3.

Engine OFF → ON.

Specification: 12V is measured only for approx. 0.5sec

1

2

3

4

5

6

7

8

9

10

11

12

3. UD solenoid valve
4. 2ND solenoid valve

5. A/T battery

6. A/T battery
7. VF solenoid valve(+)
8. VF solenoid valve(-)
9. DCC solenoid valve
10.RED solenoid valve
11. LR solenoid valve
12. OD solenoide valve

C209

v

SCMAT6375L

4.

Is voltage within specifications?

YES

▶ Go to "Signal circuit inspection" procedure.

NO

▶ Check that A/T-20A fuse in engine room junction is installed or not blown.
▶ Check for open in harness. Repair as necessary and go to "Verification of vehicle repair" procedure.