Subaru Impreza 2003 Service Manual page 1301

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
• RHD model
THROTTLE
POSITION
SENSOR
B135 ECM
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
E13
E2
B21
3
1
B83
Is any other DTC displayed?
EN(H4DOTC)-125
E13
1 2 3
B21
1 2
5 6 7
9 10
13 14 15
17 18
B83
1 2 3 4 5 6
B135
1 2 3 4 5 6
10 11 12 13 14 15
20 21 22 23
Check
Inspect the rele-
vant DTC using
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(H4DOTC)-75,
List of Diagnostic
Trouble Code
(DTC).>
NOTE:
In this case, it is
not necessary to
inspect
P0121.
ENGINE (DIAGNOSTICS)
3 4
8
11 12
16
19 20
7 8 9
16 17 18 19
24 25 26 27 28
EN-01306
Yes No
Replace the throt-
tle position sensor.
<Ref. to
FU(H4DOTC)-33,
Throttle Position
Sensor.>
DTC