TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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AT/Automatic Transmission10 / 144
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General Troubleshooting — MK3 Supra Automatic Transmission, page 10
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General Troubleshooting Problem | Possible cause | Remedy | Page Fluid discolored or smells burnt | Fluid contaminated | Replace fluid | AT-18 | Torque converter faulty | Replace torque converter | AT-43 | Transmission faulty | Disassemble and inspect transmission | AT-46 Vehicle does not move in any forward range or reverse | Manual linkage out of adjustment | Adjust linkage | AT-19 | Valve body or primary regulator faulty | Inspect valve body | AT-109 | Parking lock pawl faulty | Inspect parking lock pawl | AT-42 | Torque converter faulty | Replace torque converter | AT-43 | Converter drive plate broken | Replace drive plate | AT-43 | Oil pump intake screen blocked | Clean screen | AT-51 | Transmission faulty | Disassemble and inspect transmission | AT-46 Shift lever position incorrect | Manual linkage out of adjustment | Adjust linkage | AT-19 | Manual valve and lever faulty | Inspect valve body | AT-109 | Transmission faulty | Disassemble and inspect transmission | AT-46 Harsh engagement into any drive range | Throttle cable out of adjustment | Adjust throttle cable | AT-19 | Valve body or primary regulator faulty | Inspect valve body | AT-109 | Accumulator pistons faulty | Inspect accumulator pistons | AT-135, 136 | Transmission faulty | Disassemble and inspect transmission | AT-46 Delayed 1-2, 2-3 or 3-O/D up-shift, or down-shifts from O/D-3 or 3-2 and shifts back to O/D or 3 | Electronic control faulty | Inspect electronic control | AT-21 | Valve body faulty | Inspect valve body | AT-109 | Solenoid valve faulty | Inspect solenoid valve | AT-30 Slips on 1-2, 2-3 or 3-O/D up-shift, or slips or shudders on acceleration | Manual linkage out of adjustment | Adjust linkage | AT-19 | Throttle cable out of adjustment | Adjust throttle cable | AT-19 | Valve body faulty | Inspect valve body | AT-109 | Solenoid valve faulty | Inspect solenoid valve | AT-30 | Transmission faulty | Disassemble and inspect transmission | AT-46 Drag, binding or tie-up on 1-2, 2-3 or 3-O/D upshift | Manual linkage out of adjustment | Adjust linkage | AT-19 | Valve body faulty | Inspect valve body | AT-109 | Transmission faulty | Disassemble and inspect transmission | AT-46