TSRM/MK4 Supra/Repair Manual
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p.138

BE/Body Electrical Systems — Inspection Procedure, page 139

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p.140
Inspection Procedure — MK4 Supra Body Electrical Systems, page 139
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Page text (OCR transcript)
BE-139
BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM

INSPECTION PROCEDURE

1  Check voltage between terminal TAIL of theft deterrent door lock ECU connector and body ground.

LOCK

Disconnect

P  (1) Remove instrument panel.
      (See BO section)
   (2) Disconnect the ECU connector.

C  Measure voltage between terminal TAIL of theft deterrent and door lock ECU connector and body ground.

OK  Voltage: 10 – 14 V

TAIL

BE3843
N07482

NG                    OK  Check and replace theft deterrent ECU.

Check and repair harness and connector between theft deterrent and door lock ECU taillight control relay (See page IN–30).