AT-422
[RE5F22A]
A/T CONTROL SYSTEM
Revision: November 2006
2006 Altima
Input/Output Signal of TCM
ECS009CL
*1: Spare for revolution sensor
*2: Spare for throttle angle signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.
*5: CAN communications.
CAN Communication
ECS009CM
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to
.
Control item
Line
pressure
control
Vehicle
speed
control
Shift
control
Lock-up
control
Engine
brake
control
Fail-safe
function
(*3)
Self-diag-
nostics
function
Input
Throttle angle signal
(*5)
X
X
X
X
X
X
X
Throttle position signal
(*5)
X
(*2)
X
(*2)
X
X
(*2)
X
(*4)
Revolution sensor
X
X
X
X
X
X
X
Turbine revolution sensor
X
X
X
X
X
X
Vehicle speed signal MTR
(*1) (*5)
X
X
X
X
X
X
Engine speed signals
(*5)
X
X
X
X
X
Engine torque signals
(*5)
X
X
X
X
X
X
PNP switch
X
X
X
X
X
X
X
(*4)
Manual mode switch
X
X
X
X
X
Stop lamp switch signal
(*5)
X
X
X
X
(*4)
A/T fluid temperature sensor
X
X
X
X
X
X
ASCD
Operation signal
(*5)
X
X
X
Overdrive cancel signal
(*5)
X X
X
TCM power supply voltage signal
X
X
X
X
X
X
X
Out-
put
Shift solenoid valve A/B/C/D/E
X
X
X
X
Pressure control solenoid valve A
X
X
X
X
X
X
X
Pressure control solenoid valve B
X
X
X
X
X
Pressure control solenoid valve C
X
X
X
X
Self-diagnostics table
(*5)
X