Toyota Camry Manual page 1928

Electronically Controlled Transmission Communication Circuit
CIRCUIT DESCRIPTION
When driving uphill under the cruise control, in order to reduce shifting due to ON–OFF overdrive operation
and to provide smooth driving, when down shifting in the electronically controlled transmission occurs, a sig-
nal to prevent upshift until the end of the uphill slope is sent from the cruise control ECU to the electronically
controlled transmission.
Terminal ECT of the cruise control ECU detects the shift change signal (output to electronically controlled
transmission No. 2 solenoid) from the ECM.
If the vehicle speeds down, also when terminal ECT of the cruise control ECU receives down shifting signal,
it sends a signal from terminal OD to ECM to cut overdrive until the end of the uphill slope, and the gear shifts
are reduced and gear shift points in the electronically controlled transmission are changed.
WIRING DIAGRAM
ECM
OD1
S2
DIAGNOSTICS
*1: 1MZ–FE
*2: 5S–FE (w/ Immobiliser)
*3: 5S–FE (w/o Immobiliser)
24 18 20
E8 E7 E7
*1 *2 *3
8 21 6
L–B
E11 E9
E9
A
*1 *2 *3
ECT No.2
Solenoid
– CRUISE CONTROL SYSTEM
Y–B
*1
J26
*2
J25
J/C
7
L–B
II2
A
A
Author :
Cruise Control ECU
14
OD
C15
6
ECT
L–B
C15
Date :
DI–901
DI08U–11
I08432
1136