Switch SUZUKI SWIFT 2005 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 5A-28 Automatic Transmission/Transaxle:
3 → 4 upshift fails to
occur Malfunction of shift solenoid valve-B
Inspect. If NG, replace.
Malfunction of “3” position switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of crankshaft position
sensor Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Gear shift point is
incorrect Abnormal engine condition
Inspect and repair engine.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
O/D
→ 3 downshift fails to
occur Malfunction of shift solenoid valve-A
Inspect. If NG, replace.
Malfunction of “3” position switch Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty forward clutch Inspect. If NG, replace.
3
→ 2 downshift fails to
occur Malfunction of shift solenoid valve-A
Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty one-way No.1 clutch Inspect. If NG, replace.
2
→ 1 downshift fails to
occur Malfunction of shift solenoid valve-B
Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Faulty valve body component Replace valve body assembly.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-29
Manual Road TestS7RS0B5104012
WARNING!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.

The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness co nnector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads. With select lever shifted to each ra nge (“L”, “2”, “3” and “D”), drive vehi cle at 1,000 rpm engine speed and then
check vehicle speed by referring to “Fixed gear position”.
If vehicle speed is not as specified in “Fix ed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position TCC (lock-up) function
pressure control does not
operate
Malfunction of TCC pressure control
solenoid valve
Inspect. If NG, replace.
Malfunction of shif t solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of brake light switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty torque converter Replace.
Condition
Possible cause Correction / Reference Item
Select lever positionFixed gear position Vehicle speed
L range
3rd gearApprox. 25.0 km/h (15.5 mile/h)
2 range
3 range
D range
R range Reverse gear Approx. 10.9 km/h (6.8 mile/h)
I3RM0B510010-01

Downloaded from www.Manualslib.com manuals search engine 5A-32 Automatic Transmission/Transaxle:
Troubleshooting
Line Pressure TestS7RS0B5104016
Purpose of this test is to check operat ing conditions of each part by measuring fluid pressure in fluid pressure line.
Line pressure test requires the following conditions.
• Automatic fluid is at normal operating temperature (70 – 80 °C / 158 – 176 °F).
• Fluid is replenished to proper level (between FULL and LOW on dipstick).
• Air conditioner switch is turned OFF.
1) Apply parking brake securely and place chocks against wheels.
2) Remove fluid pressure check hole plug bolt.
3) Attach oil pressure gauge to fluid pr essure check hole in transaxle case.
Special tool
(A): 09925-37811-001
CAUTION!
After attaching oil pressure gauge, check that no fluid leakage exists.

4) Depress foot brake fully, run engine at idle and stall then check fluid pressure in “D” or “R” range.
CAUTION!
• Do not continue running engine at stall speed longer than 5 seconds.
• After performing line pressure test, be sure to leave engine running at idle for longer than one minute before performing another line pressure test.

Automatic transaxle line pressure
Condition Possible cause Correction / Reference Item
“N”
→ “D” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
“N”
→ “R” time lag
exceeds specification Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure) Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
“D” range
“R” range
At idle speed 3.8 – 4.2 kg/cm2, 54 – 60psi 5.9 – 6.9 kg/cm2, 84 – 98 psi
At stall speed 12.1 – 13.4 kg/cm2, 172 – 191 psi 16.8 – 19.5 kg/cm2, 239 – 277 psi

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-35
Poor 2 → 3 shiftShift solenoid valve-A circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 3
→ 4 shift Shift solenoid valve-B circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Engine coolant temperature sensor
circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low
in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor “A” Circuit in Section 1A”. If NG,
repair.
“3” position switch circuit faulty Refer to “No Gear Shift to 4th gear”.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-36 Automatic Transmission/Transaxle:
Poor 4 → 3 shiftShift solenoid valve-B circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
“3” position switch circuit faulty Refer to “No Gear Shift to 4th gear”.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 3
→ 2 shift Shift solenoid valve-A circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 2
→ 1 shift Shift solenoid valve-A circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Incorrect gear shift point Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-37
Non operate TCC (lock-
up) systemTCC pressure control solenoid valve
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Shift solenoid valve-A and/or-B circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Engine coolant temperature sensor
circuit faulty Inspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low
in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Brake light switch circuit faulty Refer to “No Lock-Up Occurs”.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Higher or lower stall
speed Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
Excessive “N”
→ “D” or
“N”
→ “R” time lag Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
Higher or lower line
pressure Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all range Faulty valve body component Replace valve body assembly.
Excessive shift shock Engine abnormal condition Inspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shifting Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shifting Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensor Inspect referring to “CKP Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 1
→ 2 shift Malfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 2
→ 3 shift Malfunction of shift solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-39
Poor 3 → 4 shiftMalfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of “3” position switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect referring to “ECT Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Poor 4
→ 3 shift Malfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of timing solenoid valve Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of “3” position off switch Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Poor 3
→ 2 shift Malfunction of shift solenoid valve-A Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Poor 2
→ 1 shift Malfunction of shift solenoid valve-B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Incorrect shift point Engine abnormal condition Inspect and repair engine.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repairNon operate TCC (lock-
up) system
Malfunction of TCC solenoid valve
Inspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect referring to “ECT Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switch Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Excessive “N”
→ “D” or
“N”
→ “R” time lag Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Pressure control solenoid valve circuit
faulty Inspect. If NG, replace valve body assembly.
Clogged oil strainer Replace.
Faulty valve body component Replace valve body assembly.
Condition Possible cause Correction / Reference Item
Condition
Possible cause Correction / Reference Item
Unable to run in all range Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Faulty torque converter Replace.
Excessive “N”
→ “D” shift
shock Faulty forward clutch
Inspect. If NG, replace.
Excessive “N”
→ “R” shift
shock Faulty reverse clutch
Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Poor 1
→ 2 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 3 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Poor 3
↔ O/D shift,
excessive shock or
slippage Faulty forward clutch
Inspect. If NG, replace.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Poor 3
→ 2 shift,
excessive shock or
slippage Faulty direct clutch
Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→ 1 shift,
excessive shock or
slippage Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-41
No Gear Shift to 4th gearS7RS0B5104019
System Description
TCM does not shift to 4th gear under any of the following condition.
• “3” position switch is turned ON.
• Engine coolant temperature is less than 50 °C (122 °F).
• A/T fluid temperature is less than 20 °C (68 °F).
• A/T fluid temperature is more than 130 °C (266 °F) while TCM is detecting P2762, P2763 and P2764.
• TCM detects the following DTCs. P0712 / P0713 / P0717 / P0722 / P0787 / P0788 / P0961 / P0962 / P0963 / P0973 / P0974 / P0976 / P0977 / P1702
/ P1703 / P1774 / P1777
Troubleshooting
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 a tester, on a level road.

Non operate TCC (lock-
up) system Faulty torque converter
Replace.
Excessive “N”
→ “D” time
lag Faulty oil pump
Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Leakage from “D” range fluid pressure
circuit Replace valve body assembly.
Excessive “N”
→ “R” time
lag Faulty oil pump
Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Leakage from “R” range fluid pressure
circuit Replace valve body assembly.
Poor engine brake in
downshift to “2” range Faulty O/D and 2nd coast brake
Inspect. If NG, replace.
Poor engine brake in
downshift to “L” range Faulty 1st and reverse brake
Inspect. If NG, replace.
Condition Possible cause Correction / Reference Item
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 Check DTC
Is DTC P0712, P0713, P0717, P0722, P0961, P0962,
P0963, P0973, P0974, P0976, P0977, P1702, P1703,
P1774 and/or P1777 detected? Go to applicable DTC
diag. flow.
Go to Step 3.