Toyota RM787U, Руководство по обслуживанию и ремонту

Страница: 523 / 1976

I19493
Cruise Control ECU
14
OD
6
ECT
L-B
24
OD1
1
S2
L-B
L-B
Junction
Connector
ECT No.2
Solenoid
IH1
13
D
D
D
ECM
C15
C15
B-L
E9
E10
J13
L-B
10
Electronically Controlled
Transmission Solenoid
L-B
IH2
11
E1
DI-592
- DIAGNOSTICS CRUISE CONTROL SYSTEM
746
Author: Date:
2001 SIENNA (RM787U)
Electronically Controlled Transmission Communication Circuit
CIRCUIT DESCRIPTION
When driving uphill under 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 signal
to prevent upshift until the end of the up hill 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 vehicle speed 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
DI08U-24