LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Transmission code 62, ucf10

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Old 01-19-18, 03:08 PM
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rickyedge
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Default Transmission code 62, ucf10

1994 ls400, flashing overdrive light. Believe the transmission is in a so called "limp mode"
Code 62 (shift solenoid short circuit or severed harness) when e1 and te1 bridged.
Slow take off, transmission (a341e) will not kickdown.

Replace both of the short solenoids with a couple junkyard ones, same issue.

if anyone has ran into the fix, PLEASE steer me in the right direction.
Ecu replaced by Daryll geller.

any help is appreciated.
Old 01-20-18, 12:58 PM
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Amskeptic
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Originally Posted by rickyedge
1994 ls400, flashing overdrive light. Believe the transmission is in a so called "limp mode"
Code 62 (shift solenoid short circuit or severed harness) when e1 and te1 bridged.
Slow take off, transmission (a341e) will not kickdown.

Replace both of the short solenoids with a couple junkyard ones, same issue.

if anyone has ran into the fix, PLEASE steer me in the right direction.
Ecu replaced by Daryll geller.

any help is appreciated.

The two solenoid valves require 11-15 ohms. If either is not correct, the ECU throws a code. You should have the same readings at the SP1 and SP2 on ECU side of the harness while the solenoids are plugged back in. Then, the manual says . . . Engine & ECT ECU changeout time.
Colin
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