
AT1-95
AT340E (2JZ-GE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING
TT Terminal Circuit
CIRCUIT DESCRIPTION
Checks of ECM input and output signals related to the throttle position sensor, brakes, shift position and other
circuits can be performed by measuring the voltages at terminal TT of the DLC2
WIRING DIAGRAM
DLC2
TT 5
GR-R
E1 3
BR
6
LJ1
18
LJ1
GR-R
BR
BR
ED
17
E10 TT
69
E9 E1
ECM
B+
Q04358
INSPECTION PROCEDURE
1 Check harness and connector between ECM and DLC2 and body ground
(See page IN-30).
OK
NG Repair or replace harness or connector.
Check and replace ECM.