Symptom
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Probable cause(s)
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Notes
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When you turn the ignition switch to ON (II), the D indicator comes on and stays on in all shift lever positions, or it never comes on at all
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A/T gear position indicator does not come on while the shift lever is in that position
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Shift lever cannot be moved from P while you are pressing on the brake pedal
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Ignition switch cannot be moved from ACCESSORY (I) to LOCK (0) (key is pushed in, the shift lever in P)
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HDS does not communicate with the PCM or the vehicle
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DLC circuit error
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Shift indicator does not work on five-position transmission
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When you press the paddle shifter + (upshift switch) in D and S, the transmission does not upshift on five-position transmission
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A problem in the paddle shifter + (upshift switch) circuit
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When you press the paddle shifter − (downshift switch) in D and S, the transmission does not downshift on five-position transmission
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A problem in the paddle shifter − (downshift switch) circuit
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M indicator does not come on even though the paddle shifter + (upshift switch) or paddle shifter − (downshift switch) is operated in sequential shift mode on five-position transmission
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Engine runs, but vehicle does not move in any gear
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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Low ATF level
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body is worn
ATF pump worn or binding
Regulator valve stuck or spring worn
ATF strainer clogged
Mainshaft worn or damaged
Final gears worn or damaged
Transmission-to-engine assembly error
Axle disengaged
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Symptom
|
Probable cause(s)
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Notes
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---|---|---|---|
Vehicle moves in 2 and R, but not in 1st in D, D3, S, or 1
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1.
2.
3.
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1st accumulator defective
1st gears worn or damaged
1st clutch defective
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Vehicle moves in D, D3, S, 1, and R, but not in 2, or in 2nd in S
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1.
2.
3.
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2nd accumulator defective
2nd gears worn or damaged
2nd clutch defective
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Vehicle moves in D, D3, S, 2, and 1, but not in R
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1.
2.
3.
4.
5.
6.
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Shift solenoid valve D defective
Shift fork shaft stuck
Shift valve D defective
5th/reverse accumulator defective
5th clutch defective
Reverse gears worn or damaged
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Poor acceleration; flares when starting off in D, D3, S, 2, 1, and R; stall speed high in D, D3, S, 2, and 1
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1.
2.
3.
4.
5.
6.
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Low ATF level
Shift cable broken or out of adjustment
ATF pump worn or binding
Regulator valve stuck or spring worn
ATF strainer clogged
Torque converter check valve defective
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Poor acceleration; flares when starting off in D, D3, S, 2, and R; stall speed high
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2nd clutch defective
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Poor acceleration; flares when starting off in D, D3, S, 2, 1, and R; stall speed high in R
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1.
2.
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Shift cable broken or out of adjustment
5th clutch defective
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Poor acceleration; flares when starting off in D, D3, S, 2, 1, and R; stall speed low in D, 2, and 1
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1.
2.
3.
4.
5.
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Shift solenoid valve D defective
Torque converter one-way clutch defective
Engine output low
Torque converter clutch piston defective
Lock-up shift valve defective
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Poor acceleration; flares when starting off in D, D3, S, 2, 1, and R; stall speed low in R
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1.
2.
3.
4.
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Torque converter one-way clutch defective
Engine output low
Torque converter clutch piston defective
Lock-up shift valve defective
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Engine idle vibration
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1.
2.
3.
4.
5.
6.
7.
8.
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Low ATF level
Shift solenoid valve D defective
Drive plate defective or transmission misassembled
Engine output low
Torque converter clutch piston defective
ATF pump worn or damaged
Lock-up shift valve defective
Misassembled engine or transmission mount
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Symptom
|
Probable cause(s)
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Notes
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---|---|---|---|
Vehicle moves in N
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
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Excessive ATF
Foreign material in separator plate orifice
Relief valve defective
1st clutch defective
2nd clutch defective
3rd clutch defective
4th clutch defective
5th clutch defective
Clearance between the clutch end-plate and the top disc is incorrect
Needle bearing seized, worn, or damaged
Thrust washer seized, worn, or damaged
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Late shift after shifting from N to D, D3, and S, or excessive shock when shifted into D, D3, and S
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body is worn
Input shaft (mainshaft) speed sensor defective
Output shaft (countershaft) speed sensor defective
ATF temperature sensor defective
Foreign material in separator plate orifice
Servo control valve defective
1st accumulator defective
1st check ball stuck
Lock-up shift valve defective
1st clutch defective
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Late shift after shifting from N to R, or excessive shock when shifted into R
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body is worn
Input shaft (mainshaft) speed sensor defective
Output shaft (countershaft) speed sensor defective
ATF temperature sensor defective
Shift fork shaft stuck
Foreign material in separator plate orifice
Shift valve D defective
5th/reverse accumulator defective
Lock-up shift valve defective
5th clutch defective
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Symptom
|
Probable cause(s)
|
Notes
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|
---|---|---|---|
Transmission does not shift
|
1.
2.
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Input shaft (mainshaft) speed sensor defective
Output shaft (countershaft) speed sensor defective
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Excessive shock or flares on all upshifts and downshifts
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1.
2.
3.
4.
5.
6.
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A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
Input shaft (mainshaft) speed sensor defective
Output shaft (countershaft) speed sensor defective
ATF temperature sensor defective
Foreign material in separator plate orifice
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Symptom
|
Probable cause(s)
|
Notes
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---|---|---|---|
Excessive shock or flares on 1-2 upshift or 2-1 downshift
|
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
2nd clutch transmission fluid pressure switch defective
Foreign material in separator plate orifice
1st accumulator defective
2nd accumulator defective
1st check ball stuck
2nd check ball stuck
Lock-up shift valve defective
1st clutch defective
2nd clutch defective
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Symptom
|
Probable cause(s)
|
Notes
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|
---|---|---|---|
Excessive shock or flares on 2-3 upshift or 3-2 downshift
|
1.
2.
3.
4.
5.
6.
7.
8.
9.
|
A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
3rd clutch transmission fluid pressure switch defective
Foreign material in separator plate orifice
2nd accumulator defective
3rd accumulator defective
2nd check ball stuck
2nd clutch defective
3rd clutch defective
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Excessive shock or flares on 3-4 upshift or 4-3 downshift
|
1.
2.
3.
4.
5.
6.
7.
|
A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
Foreign material in separator plate orifice
3rd accumulator defective
4th accumulator defective
3rd clutch defective
4th clutch defective
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Excessive shock or flares on 4-5 upshift or 5-4 downshift
|
1.
2.
3.
4.
5.
6.
7.
|
A/T clutch pressure control solenoid valve B defective
A/T clutch pressure control solenoid valve C defective
Foreign material in separator plate orifice
4th accumulator defective
5th accumulator defective
4th clutch defective
5th clutch defective
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Noise from transmission in all shift lever positions
|
1.
2.
|
ATF pump worn or damaged
Mainshaft bearing, countershaft bearing, or secondary shaft bearing defective
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Vehicle does not accelerate above 50 km/h (31 mph)
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Torque converter one-way clutch defective
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Replace the torque converter assembly.
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Vibration in all shift lever positions
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Drive plate defective or transmission misassembled
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Shift lever does not operate smoothly
|
1.
2.
3.
|
Transmission range switch defective or out of adjustment
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body is worn
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Transmission does not shift into P
|
1.
2.
3.
|
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body is worn
Park mechanism defective
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Torque converter clutch does not disengage
|
1.
2.
3.
4.
5.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
Torque converter clutch piston defective
Lock-up shift valve defective
Lock-up control valve defective
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Torque converter clutch does not operate smoothly
|
1.
2.
3.
4.
5.
6.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
Torque converter clutch piston defective
Torque converter check valve defective
Lock-up shift valve defective
Lock-up control valve defective
|
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Torque converter clutch does not engage
|
1.
2.
3.
4.
5.
6.
7.
8.
|
Shift solenoid valve D defective
A/T clutch pressure control solenoid valve A defective
Input shaft (mainshaft) speed sensor defective
Output shaft (countershaft) speed sensor defective
Torque converter clutch piston defective
Torque converter check valve defective
Lock-up shift valve defective
Lock-up control valve defective
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A/T gear position indicator does not indicate shift lever positions
|
1.
2.
3.
|
Transmission range switch defective or out of adjustment
Shift cable broken or out of adjustment
Connection between shift cable and transmission or body worn
|
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Speedometer and odometer do not work
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Output shaft (countershaft) speed sensor defective
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Engine does not rev to high rpm, and the transmission upshifts at low rpm (engine at normal operating temperature)
|
Engine rocker arm defective
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