Subaru B9 TRIBECA WX 2007, Manual

Page: 287 / 861

CC(diag)-20
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
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).>
Step Check Yes No
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.
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? Replace the ECM.
<Ref. to
FU(H6DO)-33,
Engine Control
Module (ECM).> Go to step 2 .
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 (–):
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? Go to step 3 . Check the TCM.
<Ref. to 5AT(diag)-
2, Basic Diagnostic
Procedure.>
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:
Is the resistance less than 10
Ω
?
Replace the ECM.
<Ref. to
FU(H6DO)-33,
Engine Control
Module (ECM).> Repair the wiring
harness.
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