ATGE/A340 Automatic Trans (GE) — Check stop light signal., page 84

AT1–84
AT340E (2JZ–GE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

2  Check stop light signal.

ON
DLC2
TT        E1

C  1. Connect a voltmeter to the terminals TT and
      E1 of the DLC2.
   2. Turn ignition switch ON (Do not start the en-
      gine).
   3. Fully depress the accelerator pedal until the
      voltmeter indicates 8 V and hold it.
   4. Depress and release the brake pedal and
      check the voltage.

OK
Brake pedal          Voltage
Depressed             0 V
Released              8 V

IG ON
8 V
Accelerator Pedal
Brake Pedal
0 V

8E3840
AT5630
AT1065

NG                    OK  Proceed to next circuit inspection shown on
                          matrix chart (See page AT1–58).

3  Check harness and connector between ECM and stop light switch
   (See page IN–30).

OK                    NG  Repair or replace harness or connector

Check and replace ECM.