TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.111

ATTE/A340 Automatic Trans (GTE), page 112

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p.113
A340 Automatic Trans (GTE) — MK4 Supra A340 Automatic Trans (GTE), page 112
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Page text (OCR transcript)
AT2–112
A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

2  Check voltage between terminal OD of Cruise Control ECU harness side connector and body ground.

ON
IG ON

P  1. Disconnect Cruise Control ECU connector.
    2. Turn ignition switch ON.

C  Measure voltage between terminal OD of Cruise Control ECU harness side connector and body ground.

OK  Voltage: 4 — 6 V

BE6653
BE6623

NG                          OK  Check and replace Cruise Control ECU.

3  Check harness and connector between Cruise Control ECU and ECM (See page IN–30).

OK                          NG  Repair or replace harness or connector.

Check and replace ECM.