Subaru Legacy 2004 Service Manual page 4042

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Step
8 CHECK INHIBITOR SWITCH.
Remove and check the inhibitor switch. <Ref.
to CC-8, Inhibitor Switch.>
9 CHECK NEUTRAL POSITION SWITCH CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the neutral position switch har-
ness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
2.5 L EC, K4 and EK model:
(B25) No. 1 (+) — Chassis ground (
2.0 L non-turbo model, 2.5 L KS, KA mod-
el:
(B25) No. 2 (+) — Chassis ground (
10 CHECK NEUTRAL POSITION SWITCH CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Measure the resistance between neutral
position switch harness connector terminal and
chassis ground.
Connector & terminal
2.5 L EC, K4 and EK model:
(B25) No. 2 — Chassis ground:
2.0 L non-turbo model, 2.5 L KS, KA mod-
el:
(B25) No. 1 — Chassis ground:
11 CHECK NEUTRAL POSITION SWITCH.
Remove and check the neutral position switch.
<Ref. to CC-9, Neutral Position Switch.>
Check
Is the inhibitor switch OK?
Is the voltage approx. 5 V?
"
):
"
):
Is the resistance less than 10
#?
Is the neutral position switch
OK?
CC(diag)-28
Yes
Replace the ECM. Replace the inhibi-
<Ref. to FU(H4SO tor switch.
2.0)-34, Engine
Control Module
(ECM).> <Ref. to
FU(H4SO 2.5)-36,
Engine Control
Module (ECM).>
Go to step 10. Check the harness
for open or short
between neutral
position switch and
ECM.
Go to step 11. Repair the har-
ness.
Replace the ECM. Replace the neu-
<Ref. to FU(H4SO tral position switch.
2.0)-34, Engine
Control Module
(ECM).> <Ref. to
FU(H4SO 2.5)-36,
Engine Control
Module (ECM).>
No