Subaru B9 TRIBECA WX 2007 Manual page 287

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
Step
1 CHECK NEUTRAL POSITION SWITCH.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON and run the
Subaru Select Monitor.
3) Select {Engine Control System} from the
main menu.
4) Then, select {Current Data Display & Save}.
5) Check the neutral position switch signal by
shifting the select lever to "P" or "N" range.
2 CHECK TCM OUTPUT VOLTAGE.
1) Turn the ignition switch to ON.
2) Measure the voltage between TCM harness
connector terminal and chassis ground.
Connector & terminal
(B55) No. 19 (+) — Chassis ground (–):
3 CHECK HARNESS BETWEEN TCM AND
ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
TCM and ECM.
3) Measure the resistance between TCM har-
ness connector terminal and ECM harness con-
nector terminal.
Connector & terminal
(B136) No. 31 — (B55) No. 19:
D: DTC 15
Malfunction regarding the cancel switch.
Refer to DTC 11 for diagnostic procedure.
<Ref. to CC(diag)-15, DTC 11, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
Check
Is Subaru Select Monitor ON
when select lever is shifted into
"P" or "N" range? Is Subaru
Select Monitor OFF when
select lever is shifted to a range
other than the "P" or "N" range?
Is voltage more than 10 V when
select lever is shifted to a range
other than "P" or "N" range? Is
voltage less than 1 V when
select lever is shifted into "P" or
"N" range?
Is the resistance less than 10
Ω?
CC(diag)-20
Yes No
Replace the ECM. Go to step 2.
<Ref. to
FU(H6DO)-33,
Engine Control
Module (ECM).>
Go to step 3. Check the TCM.
<Ref. to 5AT(diag)-
2, Basic Diagnostic
Procedure.>
Replace the ECM. Repair the wiring
<Ref. to harness.
FU(H6DO)-33,
Engine Control
Module (ECM).>