ATTE/A340 Automatic Trans (GTE) — Dtc 89 TRAC ECU Circuit, page 95

AT2–95

A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

DTC 89 TRAC ECU Circuit

— CIRCUIT DESCRIPTION —

When the transmission is in the shift up or stall condition, the TRAC ECU sends a sub–throttle valve close signal to the sub–throttle actuator.

DTC No. | Diagnostic Code Detection Condition | Trouble Area

89 | All conditions below are detected 5 secs. or more.
(a) No.1 vehicle speed sensor: 9 km/h (5.6 mph) or more
(b) Mirror check of TRAC ECU input signal is abnormal.
(c) TRAC ECU input signal does not inform to ECM.
(d) TRAC ECU input signal order is abnormal. | Harness or connector between TRAC ECU and ECM
TRAC ECU

— WIRING DIAGRAM —

TRAC ECU

9
T10
W-R
13
E10
TRC-

2
T10
O
14
E10
TRC+

3
T10
B
27
E10
EFI+

8
T10
W
26
E10
EFI-

ECM
B+

B+

B+

B+

G04342