Hyundai Santa Fe (2006 year). Manual — part 21
AT -36
AUTOMATIC TRANSAXLE (F4A51)
Trouble symptom
Probable cause
Shocks when changing from N to
R and large time lag
If abnormal shocks or a time lag of
2 seconds or more occur when the
selector lever is shifted from N to R
range while the engine is idling, the
cause is probably abnormal reverse
clutch pressure or low and reverse brake
pressure, or a malfunction of the reverse
clutch, low and reverse brake, valve
body or idle position switch.
-
Abnormal reverse clutch pressure
-
Abnormal low and reverse
brake pressure
-
Malfunction of the low and reverse
solenoid valve
-
Malfunction of the reverse clutch
-
Malfunction of the low and
reverse brake
-
Malfunction of the valve body
-
Malfunction of the idle position switch
Malfunction when starting
Shocks when changing from N to D,
N to R and large time lag
If abnormal shocks or a time lag of 2
seconds or more occur when the selector
lever is shifted from N to D range and
from N to R range while the engine is
idling, the cause is probably abnormal
line pressure or a malfunction of the
oil pump or valve body.
-
Abnormal line pressure
-
Malfunction of the oil pump
-
Malfunction of the valve body
Malfunction when shifting
Shocks and running up
If shocks occur when driving due to
up shifting or down shifting and the
transmission speed becomes higher than
the engine speed, the cause is probably
abnormal line pressure or a malfunction
of a solenoid valve, oil pump, valve
body or of a brake or clutch.
-
Abnormal line pressure
-
Malfunction of each solenoid valve
-
Malfunction of the oil pump
-
Malfunction of the valve body
-
Malfunction of each brake or
each clutch
All points
If all shift points are displaced while
driving, the cause is probably a
malfunction of the output shaft speed
sensor, TPS or of a solenoid valve.
-
Malfunction of the output shaft
speed sensor
-
Malfunction of the throttle
position sensor
-
Malfunction of each solenoid valve
-
Abnormal line pressure
-
Malfunction of the valve body
-
Malfunction of the TCM(PCM)
Displaced shifting points
Some points
If some of the shift points are displaced
while driving, the cause is probably a
malfunction of the valve body, or it is
related to control and is not an abnormality.
-
Malfunction of the valve body
Does not shift
No diagnosis codes
If shifting does not occur while driving
and no diagnosis codes are output, the
cause is probably a malfunction of the
transaxle range switch, or TCM(PCM)
-
Malfunction of the transaxle range
-
Malfunction of the TCM(PCM)
Malfunction while driving
Poor acceleration
If acceleration is poor even if down
shifting occurs while driving, the cause
is probably a malfunction of the engine
system or of a brake or clutch.
-
Malfunction of the engine system
-
Malfunction of the brake or clutch
AUTOMATIC TRANSAXLE SYSTEM
AT -37
Trouble symptom
Probable cause
Malfunction while driving
Vibration
If vibration occurs when driving at
constant speed or when accelerating
and deceleration in top range, the cause
is probably abnormal damper clutch
pressure or a malfunction of the engine
system, damper clutch control solenoid
valve, torque converter or valve body.
-
Abnormal damper clutch pressure
-
Malfunction of the engine system
-
Malfunction of the damper clutch
control solenoid valve
-
Malfunction of the torque converter
-
Malfunction of the valve body
Transaxle range switch system
The cause is probably a malfunction of the inhibitor switch circuit,
ignition switch circuit or a defective TCM(PCM).
-
Malfunction of the transaxle
range switch
-
Malfunction of the ignition switch
-
Malfunction of connector
-
Malfunction of the TCM(PCM)
Idle position switch system
The cause is probably a defective idle position switch
circuit, or a defective TCM(PCM).
-
Malfunction of the triple pressure
switch
-
Malfunction of connector
-
Malfunction of the TCM(PCM)
Triple pressure switch system
The cause is probably a defective dual pressure switch
circuit or a defective TCM(PCM).
-
Malfunction of the triple pressure
switch
-
Malfunction of connector
-
Malfunction of A/C system
-
Malfunction of the TCM(PCM)
Vehicle speed sensor system
The cause is probably a defective vehicle speed sensor
circuit or a defective TCM(PCM).
-
Malfunction of the vehicle
speed sensor
-
Malfunction of connector
-
Malfunction of the TCM(PCM)
AT -38
AUTOMATIC TRANSAXLE (F4A51)
DTC TROUBLESHOOTING INDEX
No.
Code
Item
MIL
Remark
1
P0707
TRANSAXLE RANGE SWITCH CIRCUIT LOW INPUT
ON
AT-48
2
P0708
TRANSAXLE RANGE SWITCH CIRCUIT HIGH INPUT
ON
AT-55
3
P0711
TRANSAXLE FLUID TEMPERATURE SENSOR RATIONALITY
ON
AT-58
4
P0712
TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT
ON
AT-64
5
P0713
TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT
ON
AT-66
6
P0717
A/T INPUT SPEED SENSOR CIRCUIT - OPEN or SHORT(GND)
ON
AT-69
7
P0722
AT OUTPUT SPEED SENSOR CIRCUIT - OPEN or SHORT(GND)
ON
AT-76
8
P0731
GEAR 1 INCORRECT RATIO
ON
AT-83
9
P0732
GEAR 2 INCORRECT RATIO
ON
AT-89
10
P0733
GEAR 3 INCORRECT RATIO
ON
AT-94
11
P0734
GEAR 4 INCORRECT RATIO
ON
AT-99
12
P0741
TORQUE CONVERTER CLUTCH STUCK OFF
ON
AT-103
13
P0742
TORQUE CONVERTER CLUTCH STUCK ON
ON
AT-106
14
P0743
TORQUE CONVERTER CLUTCH CONTROL SOLENOID
VALVE - OPEN or SHORT(GND)
ON
AT-109
15
P0748
VFS SOLENOID
OFF
AT-117
16
P0750
LOW and REVERSE SOLENOID VALVE CIRCUIT - OPEN
or SHORT(GND)
ON
AT-124
17
P0755
UNDER DRIVE SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND)
ON
AT-131
18
P0760
SECOND SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND)
ON
AT-138
19
P0765
OVERDRIVE SOLENOID VALVE CIRCUIT - OPEN or SHORT(GND)
ON
AT-145
20
P0885
A/T CONTROL RELAY - OPEN or SHORT(GND)
ON
AT-152
21
P0890
TCM power Relay sense circuit low
ON
AT-157
22
P0891
TCM power Relay sense circuit High
ON
AT-158
AUTOMATIC TRANSAXLE SYSTEM
AT -39
FAILSAFE
Activation and deactivation of error failsafe is coordinated
Error failsafe Management.
Once Error failsafe is activated, it will be kept until ignition
key OFF.
In every new TCM start, TCM start with No Error failsafe
and No Error present.
0. Mechanical Limp Home Mode
• Switch off A/T relay
1. Electrical Limp Home Mode
• Keep 2nd / 3rd gear
2. Prohibit Intelligent Shift
• Fuzzy SAT(Siements Adaptive Transmission) shift
pattern (Medium Driver, Sporty Driver) will not be
used
3. Prohibit Adaptive Control
• No learning is done
6. Prohibit Torque Reduction Request
• No torque reduction is sent to ECU
7. Prohibit Lockup Control
• Stay in non-lockup control state
8. Substitute Input Value Oil Temperature
• Set oil temperature(tf) to 80 C (192 F)
9. Substitute Value Speed Ratio
• Set speed ratio to 0.7
10. Substitute CAN Input Value
• Set engine torque to 42%
• Set throttle position to 50%
• Set accelerator pedal signal to 50%
• Set engine speed (Ne) to 3000 rpm
• Set vehicle speed to 0 km/h
• Set status of air condition relay to OFF
11. Prohibit VFS control
• Stop the Line Pressure Control till IG Off
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