Fault
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Possible causes
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Diagnostic procedure
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Engine cannot be started.
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Selector lever not in position P or N Transmission range sensor incorrectly adjusted Valve body defective
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Adjust transmission range sensor Change the transmission
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Car cannot be driven in selector lever positions D, 3, 2, 1 or else slippage or jerkiness occurs.
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Fluid level in transmission too low Filter mesh in fluid pump inlet clogged Fluid pump blocked Loss of fluid in clutch C1 or in fluid system Loss of fluid in fluid system for brake B4 Freewheel F2 defective Freewheel F3 defective Loss of fluid in multiplate brake B3 or in fluid system Valve housing defective Torque converter blocked
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Adjust fluid level in transmission Change the transmission
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Car cannot be driven in selector lever position R.
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Fluid level in transmission too low Filter mesh in oil pump inlet clogged Fluid pump blocked Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked Loss of fluid in plate clutch C2 or in fluid system Loss of fluid in multiplate brake B3 or in fluid system Loss of fluid in fluid system for brake band B4 Loss of fluid in plate clutch C3 or in fluid system Torque converter blocked Valve body defective
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Adjust fluid level in transmission Change the transmission
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No 1-2 upshifting.
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Selector lever in position 1 Transmission range sensor incorrectly adjusted Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked Loss of fluid in multiplate brake B1 or in fluid system Loss of fluid in multiplate brake B2 or in fluid system One-way clutch F1 defective Valve body defective
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Adjust the transmission range sensor Change the shift solenoid (S1) Change the transmission
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No 2-3 upshifting.
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Loss of fluid in clutch C3 or in fluid system Shift solenoid 2-3 (S2) or shift valve in valve housing blocked
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Change the shift solenoid (S2) Change the transmission
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No 3-4 upshifting in selector lever position D.
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Loss of fluid in plate clutch C3 or in fluid system Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked Fluid temperature sensor defective
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Change the shift solenoid (S1) Change the fluid temperature sensor Change the transmission
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No 4-3 downshifting on kickdown.
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Kick-down switch defective Loss of fluid in clutch C2 or in fluid system Shift solenoid 1-2/3-4 (S1) or shift valve in valve housing blocked Freewheel F1 defective
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Change the kickdown switch Change the shift solenoid (S1) Change the transmission
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No 3-2 downshifting on kickdown.
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Kickdown switch defective Shift solenoid 2-3 (S2) or shift valve in valve body blocked Loss of fluid in multiplate brake B4 One-way clutch F3 defective
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Change the kickdown switch Change the shift solenoid (S2) Change the transmission
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No 2-1 downshifting on kickdown.
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Kickdown switch defective Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked One-way clutch F2 defective
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Change the kickdown switch Change the shift solenoid (S1) Change the transmission
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Engine braking in selector lever position 1 ineffective.
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Loss of fluid in multiplate brake B3 or in shift valve Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked
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Change the shift solenoid (S1) Change the transmission
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Engine braking in selector lever position 2 ineffective.
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Loss of fluid in fluid system for brake band B4 Loss of fluid in multiplate brake B1 or in shift valve Shift solenoid 2-3 (S2) or shift valve in valve body blocked
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Change the shift solenoid (S2) Change the transmission
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Engine braking in selector lever position 3 ineffective.
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Loss of fluid in multiplate brake B1 or in fluid system Loss of fluid in plate clutch C3 or in fluid system Shift solenoid 1-2/3-4 (S1) or shift valve in valve body blocked
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Change the shift solenoid (S1) Change the transmission
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Rough N-D shifting.
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Valve body defective Pressure chamber for plate clutch C1 defective Loss of fluid in plate clutch C1 or in fluid system Loss of fluid in fluid system for brake band B4 One-way clutch F2 defective One-way clutch F3 defective
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Change the gearbox.
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Rough N-R shifting.
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Valve housing defective Pressure chamber for clutch C2 defective Loss of fluid in clutch C2 or in fluid system Loss of fluid in multiplate brake B3 or in fluid system Loss of fluid in fluid system for brake B4
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Change the gearbox.
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Rough shifting in all gears.
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Valve housing defective Pressure chamber defective Loss of fluid in clutches or multiplate brakes or in fluid system
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Change the gearbox.
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Torque converter clutch does not engage
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Torque converter clutch solenoid defective Valve body defective Torque converter defective
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Change the LOCK-UP solenoid (SL) Change the transmission
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