Subaru Impreza 2003 Service Manual page 1859

7. Vehicle Speed Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Lift-up the vehicle.
3) Remove the front, center rear exhaust pipes and
muffler.
4) Disconnect the connector from vehicle speed
sensor.
5) Turn and remove the vehicle speed sensor.
B: INSTALLATION
NOTE:
• Discard the vehicle speed sensor and after re-
moval, replace with a new one.
• Ensure the sensor mounting hole is clean and
free of foreign matter.
• Align the tip end of key with key groove on end of
speedometer shaft during installation.
1) Hand tighten the vehicle speed sensor.
2) Tighten the vehicle speed sensor using suitable
tool.
Tightening torque:
5.9 N·m (0.6 kgf-m, 4.3 ft-lb)
3) Connect the connector to vehicle speed sensor.
4) Install the front, center exhaust pipes and muf-
fler.
5) Lower the vehicle.
6) Connect the battery ground cable to battery.
VEHICLE SPEED SENSOR
C: INSPECTION
Inspect the vehicle speed sensor.
Without OBD
<Ref. to EN(H4SOw/oOBD)-80, DTC 33 VEHICLE
SPEED SIGNAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
With OBD Non-turbo model
<Ref. to EN(H4SO)-184, DTC P0502 — VEHICLE
SPEED SENSOR CIRCUIT LOW INPUT —, Diag-
nostic Procedure with Diagnostic Trouble Code
(DTC).>, <Ref. to EN(H4SO)-185, DTC P0503 —
VEHICLE SPEED SENSOR INTERMITTENT/ER-
RATIC/HIGH —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
Turbo model
<Ref. to EN(H4DOTC)-202, DTC P0502 — VEHI-
CLE SPEED SENSOR CIRCUIT LOW INPUT —,
Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>, <Ref. to EN(H4DOTC)-204, DTC
P0503 — VEHICLE SPEED SENSOR INTERMIT-
MT-00113
TENT/ERRATIC/HIGH —, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
5MT-51
MANUAL TRANSMISSION AND DIFFERENTIAL