Subaru SVX 1992 Manual page 569

3-2 IT5JO] AUTOMATIC TRANSMISSION AND DIFFERENTIAL
J TROUBLE CODE 31 - THROTTLE SENSOR -
CONTENT OF DIAGNOSIS :
Input signal circuit of throttle sensor is open or
shorted .
TROUBLE SYMPTOM :
Shift point too high or too low ; engine brake not
effected in "3"
range ; excessive shift
shock; excessive tight corner "braking"
t
Measure signal voltage input of TCU .
OK
b, Repair TCU terminal poor contact. (Replace TCU .)
~r Not OK
2
Check harness/connector between TCU and I
Not OK
Repair harness/connector .
throttle sensor .
OK
3 Check throttle sensor .
Not OK
b
Replace throttle body .
OK
Repair TCU terminal poor contact . (Replace TCU .)
1----
-=E----
---- -- ---- 1
E1] 87
Throttle
sensor
®
ti60
ECU
(for MPI)
860 (Ye I I ow)
Ell 867 (B I ack)
123456
Gift
171 8 1 9 1 101 11 1 1 21
QIE
TCU
B67
C3-086
Fig . 294
196