TSRM/MK2 Supra/Repair Manual
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AT/Automatic Transmission — Inspection of Manual Shifting, page 21

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p.022
Inspection of Manual Shifting — MK2 Supra Automatic Transmission, page 21
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Page text (OCR transcript)
INSPECTION OF MANUAL SHIFTING

NOTE: With this inspection, it can be determined whether the trouble lies within the electrical circuit or a mechanical trouble in the transmission.

1. DISCONNECT ECT ECU CONNECTOR
(a) Remove the glove box.
(b) Disconnect the ECT ECU connector.

2. INSPECT MANUAL DRIVING OPERATION
(a) While driving, check that there is respective gear change in each drive range.

Shift position | D range | 2 range | L range | R range | P range
Gear position | OD | 3rd | 1st | Reverse | Pawl Lock

(b) Vehicle moves in reverse in "R" range.
(c) Vehicle does not move in "N" range.
(d) Parking pawl locks in "P" range.
If not as specified, check the transmission.
NOTE: If a problem is indicated with the ECT even if this check is as specified, the trouble lies within the electrical circuit.