TSRM/MK3 Supra/Repair Manual
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AT/Automatic Transmission — General Troubleshooting (Cont'd), page 11

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General Troubleshooting (Cont'd) — MK3 Supra Automatic Transmission, page 11
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Page text (OCR transcript)
General Troubleshooting (Cont'd)

Problem | Possible cause | Remedy | Page

No lock-up in 2nd, 3rd or O/D | Electronic control faulty | Inspect electronic control | AT-21
 | Valve body faulty | Inspect valve body | AT-109
 | Solenoid valve faulty | Inspect solenoid valve | AT-30
 | Transmission faulty | Disassemble and inspect transmission | AT-46

Harsh down-shift | Throttle cable out of adjustment | Adjust throttle cable | AT-19
 | Throttle cable and cam faulty | Inspect throttle cable and cam | AT-136
 | Accumulator pistons faulty | Inspect accumulator pistons | AT-135, 136
 | Valve body faulty | Inspect valve body | AT-109
 | Transmission faulty | Disassemble and inspect transmission | AT-46

No down-shift when coasting | Valve body faulty | Inspect valve body | AT-109
 | Solenoid valve faulty | Inspect solenoid valve | AT-30
 | Electronic control faulty | Inspect electronic control | AT-21

Down-shift occurs too quickly or too late while coasting | Throttle cable faulty | Inspect throttle cable | AT-19
 | Valve body faulty | Inspect valve body | AT-109
 | Transmission faulty | Disassemble and inspect transmission | AT-46
 | Solenoid valve faulty | Inspect solenoid valve | AT-30
 | Electronic control faulty | Inspect electronic control | AT-21

No O/D-3, 3-2 or 2-1 kick-down | Solenoid valve faulty | Inspect solenoid valve | AT-30
 | Electronic control faulty | Inspect electronic control | AT-21
 | Valve body faulty | Inspect valve body | AT-109

No engine braking in 2 or L range | Solenoid valve faulty | Inspect solenoid valve | AT-30
 | Electronic control faulty | Inspect electronic control | AT-21
 | Valve body faulty | Inspect valve body | AT-109
 | Transmission faulty | Disassemble and inspect transmission | AT-46

Vehicle does not hold in P | Manual linkage out of adjustment | Adjust linkage | AT-19
 | Parking lock pawl cam and spring faulty | Inspect cam and spring | AT-42