Subaru IMPREZA 2002 Service Manual page 23

I
AT SHIFT LOCK SYSTEM
I
CONTROL SYSTEMS
Step
CHECK HARNESS BETWEEN BATTERY
AND KEY WARNING SWITCH.
1)Disconnect the connector key warning
switch.
2)Measure the voltage of harness between key
warning switch and chassis ground.
(874) No.
2
-
Chassis ground:
Connector & terminal
CHECK KEY WARNING SWITCH.
Measure the resistance of stop light switch
connector terminals.
Terminal
NO.
1
-
NO.
2:
CHECK KEY WARNING SWITCH.
1)Remove the key.
2)Measure the resistance of stop light switch
connector terminals.
Terminal
NO.
1
-
NO.
2:
CHECK HARNESS BETWEEN AT SHIFT
LOCK CONTROL MODULE AND KEY
WARNING SWITCH.
1)Disconnect the integrated module connector.
2)Measure the voltage of harness integrated
module and chassis ground.
Connector & terminal
(8280) No. 20
-
Chassis ground:
CHECK HARNESS BETWEEN INTEGRATED
MODULE AND KEY LOCK SOLENOID.
1)Disconnect the connector key lock solenoid.
2)Measure the resistance of harness between
integrated module and key lock solenoid.
Connector & terminal
(873)
NO.
2
-
(8281)
NO.
3:
CHECK HARNESS BETWEEN INTEGRATED
MODULE AND KEY LOCK SOLENOID.
Measure the resistance of harness between
integrated module and chassis ground.
(B281) No. 3
-
Chassis ground:
CHECK HARNESS BETWEEN KEY LOCK
SOLENOID AND CHASSIS GROUND.
Measure the resistance of harness between
key lock solenoid and chassis ground.
(873) No. 1
-
Chassis ground:
Connector & terminal
Connector & terminal
CHECK KEY LOCK SOLENOID.
Measure the resistance of key lock solenoid
connector terminals.
Connector & terminal
(873) NO. 1
-NO.
2:
CHECK HARNESS BETWEEN "P" POSI-
TION SWITCH AND CHASSIS GROUND.
Measure the resistance of harness between
" P position switch and chassis ground.
(8116) No. 2
-
Chassis ground:
Connector & terminal
Check
s the voltage between 9 and
I6 V?
Is the resistance more than
1
WR?
Is the resistance more than 1
MR?
Is the resistance more than 9
V?
Is the resistance more than 1
MR?
Is the resistance more than 1
R?
Is the resistance less than 10
a?
Is the resistance between
4
and 8 R?
Is the resistance less than 1
R?
Yes
30 to step 2.
3eplace key warn-
ng switch.
30 to step 4.
30 to step 5.
Repair open circuit
n harness
setween inte-
grated module and
cey lock solenoid.
Go to step 7.
Go to step 8.
Go to step 14.
Go to step 10.
No
3epair open or
short circuit in har-
less between bat-
:ery and key
Narning switch.
30 to step 4.
Replace key warn-
ing switch.
Repair open circuit
in harness
between inte-
grated module and
key warning
switch.
Go to step
6.
Repair short circuit
in harness
between inte-
grated module and
key lock solenoid.
Repair open circuit
in harness
between key lock
solenoid and chas
sis ground.
Replace the key
lock solenoid.
Repair short circuil
in harness
between "P" posi-
tion switch and
integrated module
cs-21