Suzuki Grand Vitara JB416 / JB420. Manual — part 230
5A-54 Automatic Transmission/Transaxle:
DTC Troubleshooting
DTC P0741 / P0742: TCC Circuit Performance or Stuck OFF / TCC Circuit Stuck ON
S5JB0A5104033
DTC Detecting Condition and Trouble Area
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check input shaft speed sensor circuit
1) Disconnect TCM connectors with ignition switch OFF.
2) Check for proper connection to input shaft speed sensor
at “E93-5” and “E93-14” terminals.
3) If OK, check resistance of sensor circuit.
Resistance of input shaft speed sensor circuit
Between terminals “E93-5” and “E93-14” of
disconnected harness side TCM connector: 560 –
680
Ω at 20 °C (68 °F)
Between terminals “E93-14” of disconnected
harness side TCM connector and ground: No
continuity
Are check results satisfactory?
Go to Step 4.
Go to Step 3.
3
Inspection output shaft speed sensor
Inspect input shaft speed sensor referring to “Output Shaft
Speed Sensor Inspection”.
Is check result satisfactory?
Output shaft speed
sensor circuit is
malfunction.
Go to Step 4.
4
Check visually Output shaft speed sensor and sensor
rotor using mirror for following
• No damage
• No foreign material attached
• Correct installation
Are they in good condition?
Intermittent trouble.
Check for intermittent
trouble referring to
“Intermittent and Poor
Connection Inspection
in Section 00”.
Clean, repair or replace.
I2RH01510023-01
DTC Detecting Condition
Trouble Area
DTC P0741:
When driving vehicle in “D” range, difference in revolution
between engine and A/T input (input shaft speed) is larger than
specification although TCM commanded TCC pressure control
solenoid to turn ON. (2 driving cycle detection logic)
• Mechanical malfunction of TCC pressure control
solenoid valve.
• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Torque converter clutch malfunction.
DTC P0742:
When driving vehicle in “D” range, difference in revolution
between engine and A/T input (input shaft speed) is smaller than
specification although TCM commanded TCC pressure control
solenoid to turn OFF. (2 driving cycle detection logic)
Automatic Transmission/Transaxle: 5A-55
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Drive vehicle with 4th in “D” range and lock-up ON for 20 seconds or longer referring to “Automatic Gear Shift
6) Drive vehicle with 2nd or 3rd gear in “D” range, 15 – 20% throttle opening and at vehicle speed of 40 km/h (25
mile/h).
7) Stop vehicle and turn ignition switch OFF.
8) Repeat Step 3) to 6) one time.
9) Stop vehicle.
10) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting
DTC P0751 / P0752: Shift Solenoid-A Performance or Stuck OFF / Shift Solenoid-A Stuck ON
S5JB0A5104034
DTC Detecting Condition and Trouble Area
Table for detecting condition
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check TCC pressure control solenoid valve for operation
referring to “Solenoid Valves (Shift Solenoid-A, Shift
Solenoid-B, TCC Pressure Control Solenoid and Pressure
Control Solenoid Inspection”.
Are they in good condition?
Clean fluid passage or
replace valve body
assembly.
Replace TCC pressure
control solenoid valve.
DTC Detecting Condition
Trouble Area
DTC P0751:
When one of the following condition was detected while vehicle
running at 5 km/h (3.1 mile/h) or more in “D” range after engine
being warmed up.
• 4th gear ratio is detected although TCM command is for 1st
gear (See table below *1)
Or
• 3rd gear ratio is detected although TCM command is for 2nd
gear (See table below *2).
(2 driving cycle detection logic)
• Mechanical malfunction of shift solenoid valve–
A.
• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic
transmission (clutch, brake or gear etc).
DTC P0752:
2nd gear ratio is detected although TCM command is for 3rd gear
while vehicle running at 5 km/h (3.1 mile/h) or more in “D” range
after engine being warmed up.
(2 driving cycle detection logic)
TCM output gear position
1st
2nd
3rd
4th
Actual gear position
Stuck OFF (DTC P0751)
4th *1
3rd *2
3rd
4th
Stuck ON (DTC P0752)
1st
2nd
2nd
4th
5A-56 Automatic Transmission/Transaxle:
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Start vehicle and increase vehicle speed to 60 km/h (37 mile/h) with throttle position 40% or more.
6) Stop vehicle and turn ignition switch OFF.
7) Repeat Step 3) to 5) one time.
8) Stop vehicle.
9) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting
DTC P0756 / P0757: Shift Solenoid-B Performance or Stuck OFF / Shift Solenoid-B Stuck ON
S5JB0A5104035
DTC Detecting Condition and Trouble Area
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check shift solenoid valve–A for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, TCC
Pressure Control Solenoid and Pressure Control Solenoid
Inspection”.
Are they in good condition?
Clean fluid passage or
replace valve body
assembly.
Replace shift solenoid
valve–A.
DTC Detecting Condition
Trouble Area
DTC P0756:
When one of the following condition was detected while vehicle
running at 5 km/h (3.1 mile/h) or more in “D” range after engine
being warmed up.
• 1st gear ratio is detected although TCM command is for 2nd
gear (See table below *1)
Or
• 4th gear ratio is detected although TCM command is for 3rd
gear (See table below *2)
(2 driving cycle detection logic)
• Mechanical malfunction of shift solenoid valve–
B.
• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic
transmission (clutch, brake or gear etc).
DTC P0757:
When one of the following condition was detected while vehicle
running at 5 km/h (3.1 mile/h) or more in “D” range after engine
being warmed up.
• 2nd gear ratio is detected although TCM command is for 1st
gear (See table below *3).
Or
• 3rd gear ratio is detected although TCM command is for 4th
gear (See table below *4).
(2 driving cycle detection logic)
Automatic Transmission/Transaxle: 5A-57
Table for detecting condition
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Start vehicle and increase vehicle speed to 65 km/h (40 mile/h) with throttle position 10% or more.
6) Stop vehicle and turn ignition switch OFF.
7) Repeat Step 3) to 5) one time.
8) Stop vehicle.
9) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting
DTC P0962: Pressure Control Solenoid “A” Control Circuit Low
S5JB0A5104039
Wiring Diagram
TCM output gear position
1st
2nd
3rd
4th
Actual gear position
Stuck OFF (DTC P0756)
1st
1st *1
4th *2
4th
Stuck ON (DTC P0757)
2nd *3
2nd
3rd
3rd *4
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check shift solenoid valve–B for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, TCC
Pressure Control Solenoid and Pressure Control Solenoid
Inspection”.
Are they in good condition?
Clean fluid passage or
replace valve body
assembly.
Replace shift solenoid
valve–B.
1
2
12V
E92-2
E92-4
YEL/RED
BRN/RED
6
5
16 15 14 13 12 11
4 3
24 23
21
22
10 9
8
7
2
1
19
20
18 17
E92
17 16
26 25
15 14
6
5
3
4
2
13 12
23 22
24
11 10 9
21 20 19
8 7
18
1
E93
3
I5JB0A510024-01
1. Pressure control solenoid valve
2. TCM
3. Terminal arrangement of TCM connector (viewed from harness side)
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