Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 308
5A-23 Automatic Transmission/Transaxle:
DTC Check
S6JB0A5104006
NOTE
For E-OBD model, the MIL is turned on when
the ECM and/or TCM detect malfunction(s).
Each ECU stores diagnostic information as
the diagnostic trouble code (DTC) in its
memory and outputs the DTC to the SUZUKI
scan tool. Therefore, check both of the ECUs
for any DTC with the scan tool because the
DTC stored in ECU and TCM is not read and
displayed at a time. However, each of the
ECUs needs not to be checked with the
generic scan tool because the DTC stored in
ECM and TCM is read and displayed at a time.
1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to data link connector
(DLC).
Special tool
(A): SUZUKI scan tool
3) Read DTC according to instructions displayed on
SUZUKI scan tool and write it down. Refer to
SUZUKI scan tool operator’s manual for further
details.
4) After completing the check, turn ignition switch OFF
and disconnect SUZUKI scan tool from data link
connector (DLC).
DTC Clearance
S6JB0A5104007
Automatic transmission DTC can be cleared using any
one of the following 2 methods.
NOTE
DTC and freeze frame data stored in TCM
memory are also cleared in following cases.
Be careful not to clear them before keeping
their record.
• When power to TCM is cut off (by
disconnecting battery cable, removing
fuse or disconnecting TCM connector).
• When the same malfunction (DTC) is not
detected again during 40 engine warm-up
cycles.
1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to data link connector
(DLC) (1).
Special tool
(A): SUZUKI scan tool
3) Clear DTC according to instructions displayed on
SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
4) After completing the clearance, turn ignition switch
OFF and disconnected SUZUKI scan tool from data
link connector (DLC).
(A)
1
I5JB0A510016-01
(A)
1
I5JB0A510016-01
Automatic Transmission/Transaxle: 5A-24
Fail Safe Table
S6JB0A5104008
This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sensor or
its circuit fails. The following table shows the fail safe function for each fail condition of sensor, solenoid, TCM or its
circuit.
DTC
No.
Trouble Area
Fail Safe Operation
05
Transmission Range Sensor Circuit
Malfunction (PRNDL Input)
• TCM control is performed in priority order below.
3> D> 2> L> R> N> P
• Slip controlled lock-up function is inhibited to operate.
• Reverse control is inhibited.
• Cruise control function is inhibited to operate. (if equipped with
cruise control system)
• Power mode is inhibited.
07
Transmission Range Sensor Circuit Low • Range is assumed to be “D” range.
• Slip controlled lock-up function is inhibited to operate.
• Reverse control is inhibited.
• Cruise control function is inhibited to operate. (if equipped with
cruise control system)
• Power mode is inhibited.
12
Transmission Fluid Temperature Sensor
“A” Circuit Low
• A/T fluid temperature is assumed to be 80
°C (176 °F).
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
13
Transmission Fluid Temperature Sensor
“A” Circuit High
17
Input / Turbine Speed Sensor Circuit No
Signal
• Torque reducing request to ECM (torque reduction control) is
inhibited.
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
22
Output Speed Sensor Circuit No Signal • Vehicle speed which is calculated by input shaft speed sensor
signal is used for gear shifting control instead of vehicle speed
calculated by output shaft speed sensor (VSS) signal.
• Upshifting to 4th gear is inhibited.
• Lock-up function is inhibited to operate.
• Torque reducing request to ECM (torque reduction control) is
inhibited.
• Line pressure control at gear shifting is inhibited.
42
Torque Converter Clutch Circuit Stuck
On
When vehicle speed is less than 10 km/h (6 mile/h), gear position is
fixed in 1st gear for prevention of engine stall.
52
Shift Solenoid “A” Stuck On
Upshifting to 4th gear is inhibited.
62
Pressure Control Solenoid “A” Control
Circuit Low
• Power supply for all solenoid valves is cut.
• Gear position is fixed according to select lever position as shown
in the following.
R: Reverse
D: 4th
3: 4th
2: 3rd
L: 1st
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
63
Pressure Control Solenoid “A” Control
Circuit High
73
Shift Solenoid “A” Control Circuit Low
74
Shift Solenoid “A” Control Circuit High
76
Shift Solenoid “B” Control Circuit Low
77
Shift Solenoid “B” Control Circuit High
5A-25 Automatic Transmission/Transaxle:
P17
02
Internal Control Module Memory Check
Sum Error
• Power supply for all solenoid valves is cut.
• Gear position is fixed according to select lever position as shown
in the following.
R: Reverse
D: 4th
3: 4th
2: 3rd
L: 1st
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
P17
03
CAN Invalid Data- TCM
In case of throttle position signal malfunction:
• Throttle opening used for line pressure control is assumed to be
100%.
• Throttle opening used for gear shifting control is assumed to be
0%.
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
In case of engine coolant temperature signal malfunction:
• Engine coolant temperature is assumed to be 80
°C (176 °F).
• Slip controlled lock-up function is inhibited to operate.
In case of engine revolution signal malfunction:
• Engine revolution is assumed to be maximum revolution.
• Lock-up function is inhibited to operate.
In case of engine torque signal malfunction:
• Slip controlled lock-up function is inhibited to operate.
• Engine torque is assumed to be maximum torque.
In case of vehicle speed signal:
• Cruise control function is inhibited to operate. (if equipped with
cruise control system)
P17
74
CAN communication problem-TCM
• Throttle opening used for line pressure control is assumed to be
100%.
• Throttle opening used for gear shifting control is assumed to be
0%.
• Engine revolution is assumed to be maximum revolution.
• Engine torque is assumed to be maximum torque.
• Engine coolant temperature is assumed to be 80
°C (176 °F).
• Lock-up function is inhibited to operate.
• Line pressure control at gear shifting is inhibited.
• Torque reducing request to ECM (torque reduction control) is
inhibited.
• Line pressure is outputted maximum value.
• Power mode is inhibited. (P1774 only)
P17
77
TCM Lost Communication with ECM
(Reception Error)
P17
78
TCM Lost Communication with BCM
(Reception Error)
Power mode is inhibited.
P18
74
4L switch circuit malfunction (Short)
Slip controlled lock-up function is inhibited to operate. (if equipped
with 4L/N switch)
P18
75
4L switch circuit malfunction (Open)
P18
78
Torque Converter Clutch Shudder
Slip controlled lock-up function is inhibited to operate.
P27
63
Torque Converter Clutch Circuit High
Power supply for TCC pressure control solenoid is cut.
DTC
No.
Trouble Area
Fail Safe Operation
Automatic Transmission/Transaxle: 5A-26
Scan Tool Data
S6JB0A5104009
As the data values given in the following table are standard values estimated on the basis of values obtained from the
normally operating vehicles by using a scan tool, use them as reference value. Even when the vehicle is in good
condition, there may be cases where the checked value does not fall within each specified data range. Therefore,
judgment as abnormal should not be made by checking with these data alone.
Also, condition in the following table that can be checked by the scan tool are those detected by TCM and output from
TCM as commands and there may be cases where the automatic transmission or actuator is not operating (in the
condition) as indicated by the scan tool.
64
Torque Converter Clutch Circuit Low
• Lock-up function is inhibited to operate.
• When vehicle speed is less than 10 km/h (6 mile/h), gear position
is fixed in 1st gear for prevention of engine stall.
Scan Tool Data
Vehicle Condition
Normal Condition / Reference Values
Gear Position
Ignition switch ON
POWER mode
OFF
Select lever is in “P” position
P/N
Select lever is in “R” position
R
Select lever is in “N” position
P/N
Select lever is in “D” position
1st
Select lever is in “3” position
1st
Select lever is in “2” position
1st
Select lever is in “L” position
1st
Throttle Position
Ignition switch ON Accelerator pedal is depressed
0 – 100% (varies depending on
depressed value)
Accelerator pedal is released
0 – 5%
Input Shaft Rev
At engine idle speed and selector lever is in
“P”position
(Engine idle speed is displayed in
increments of 50 rpm)
At 40 km/h (25 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 4th gear (“D” range)
0 RPM
Output Shaft Rev
At vehicle stop
0 RPM
At 40 km/h (25 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
Vehicle Speed 1
At vehicle stop
0 km/h, 0 MPH
Battery Voltage
Ignition switch ON and engine stop
Battery voltage is displayed (8 – 16 V)
ATF Temp
After driving at 60 km/h (37.5 mile/h) for 15 minutes
or more, and A/T fluid temperature around sensor
reaches 70 – 80
°C (158 – 176 °F)
70 – 80
°C (158 – 176 °F)
TCC Sol Duty
At vehicle stop, closed throttle and 1st gear
0%
At 80 km/h (50 mile/h) constant speed, 30% or less
throttle opening and 3th gear. (“3” range)
100%
Press Cont Sol
At vehicle stop, closed throttle, engine idle speed and
1st gear
9.5%
Slip RPM
Engine running at idle speed and selector lever is in
“P” range
0
±25 RPM
Engine running, vehicle stop and selector lever is in
“D” range
Engine speed is displayed
Vehicle Speed 2
At vehicle stop
0 km/h, 0 MPH
Engine Speed
At engine idle speed
Engine idle speed is displayed
Coolant Temp
Ignition switch ON
Engine coolant temperature is displayed
Target Engine
Torque
Ignition switch ON
0 N
⋅m
Engine Torque
Ignition switch ON
0 N
⋅m
MIL request (for E-
OBD)
Ignition switch ON
OFF
Malfunction
Indication On (for
Non E-OBD)
Ignition switch ON
OFF
DTC
No.
Trouble Area
Fail Safe Operation
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