Subaru Impreza 2003 Service Manual page 1688

TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
(1) Transmission control module
(2) Cruise control module
(3) ABS control module
(4) Ignition switch
(5) Brake switch
(6) Brake light
(7) Battery
(8) Combination meter (Speedome-
ter circuit)
(9) AT OIL TEMP light
(10) FWD indicator light
(11) POWER indicator light
(12) FWD switch
(13) POWER switch
(14) Kick-down switch
(15) Hold indicator light
(16) HOLD switch
(17) "P" range indicator light
(18) "P" range switch
(19) "R" range indicator light
(20) "R" range switch
(21) "N" range indicator light
(22) "N" range switch
(23) "D" range indicator light
(24) "D" range switch
(25) "3" range indicator light
(26) "3" range switch
(27) "2" range indicator light
(28) "2" range switch
(29) "1" range indicator light
(30) "1" range switch
(31) Data link connector
(32) Throttle position sensor
(33) Engine speed signal
(34) Torque control cut signal
(35) Torque control signal 2
4AT-18
(36) Torque control signal 1
(37) Intake manifold pressure signal
(38) AT diagnostics signal
(39) Engine control module
(40) ATF temperature sensor
(41) Torque converter turbine speed
sensor
(42) Rear vehicle speed sensor
(43) Front vehicle speed sensor
(44) Shift solenoid 1
(45) Shift solenoid 2
(46) 2-4 brake timing solenoid
(47) Line pressure duty solenoid
(48) 2-4 brake duty solenoid
(49) Lock-up duty solenoid
(50) Low clutch timing solenoid
(51) Transfer duty solenoid