ATGE/A340 Automatic Trans (GE) — Inspection Procedure, page 67

AT1–67
AT340E (2JZ–GE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

WIRING DIAGRAM

GAUGE Fuse

Y

1                                                    1                              ECM
                                                                              4～6 V
3 L-R  2    L-R  5         6 P   11    P   2  SP1
      II1              II1              E10
No.1 Vehicle
Speed Sensor        Odometer and
                    Trip Meter
2                   Telltale Light RH
                                                                    E2
Speedometer

FI6931

INSPECTION PROCEDURE

1    Check voltage between terminal SP1 of ECM connector and body ground.

ON

Check Harness A

ECM

P    (1)  Shift the shift lever to N position.
     (2)  Jack up one of the rear wheels.
     (3)  Connect the Check Harness A
          (See page EG–404)
     (4)  Disconnect power steering ECU connector
          and cruise control ECU connector.
     (5)  Turn ignition switch ON.

A 2        SP1

C    Measure voltage between terminal SP1 of ECM
     connector and body ground when the wheel is
     turned slowly.

OK   Voltage is generated intermittently.

                    4～6 V

                    0
                              Turn the wheel

BE6653
FI6504                                          AT7809

NG                          OK    Check and replace ECM.

2    Check operation of odometer and trip meter (telltale light RH (See page
     BR–48))

NG                          OK    Repair or replace harness or connector be-
                                  tween ECM and telltale light RH.