Subaru Outback manuals

Subaru Outback: Cruise Control System (Diagnostics)

Subaru Outback (BR) 2010-2015 Service Manual / Body / Cruise Control System (Diagnostics)

Basic Diagnostic Procedure

A: PROCEDURE

CAUTION:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

General Description

A: CAUTION

Airbag system wiring harness is routed near the cruise control command switch.

CAUTION:

B: PREPARATION TOOL

1. SPECIAL TOOL

Subaru Outback. Cruise Control System (Diagnostics)

2. GENERAL TOOL

Subaru Outback. Cruise Control System (Diagnostics)

C: INSPECTION

Measure the battery voltage and specific gravity of electrolyte.

Standard voltage:
12 V or more

Specific gravity:
1.260 or more

Electrical Component Location

A: LOCATION

Subaru Outback. Cruise Control System (Diagnostics)

  1. Engine control module (ECM)
  2. Cruise control command switch
  3. Stop light and brake switch
  4. Cruise indicator light and cruise set indicator light
  5. Transmission control module (TCM) (AT and CVT model)
  6. Inhibitor switch (CVT model)
  7. Neutral position switch (MT model)
  8. Clutch switch (MT model)

Engine Control Module (ECM) I/O Signal

A: ELECTRICAL SPECIFICATION

For details on the input/output signals for the engine control module, refer to ENGINE (DIAGNOSTICS).

<Ref. to EN(H4SO)(diag)-17, ELECTRICAL SPECIFICATION, Engine Control Module (ECM) I/O Signal.>

<Ref. to EN(H4DOTC)(diag)-18, ELECTRICAL SPECIFICATION, Engine Control Module (ECM) I/O Signal.>

<Ref. to EN(H6DO)(diag)-18, ELECTRICAL SPECIFICATION, Engine Control Module (ECM) I/O Signal.>

B: WIRING DIAGRAM

<Ref. to WI-105, WIRING DIAGRAM, Cruise Control System.>

Subaru Select Monitor

A: OPERATION

1. GENERAL DESCRIPTION

The on-board diagnosis function of the cruise control system uses Subaru Select Monitor.

The on-board diagnosis function operates in two categories, which are used depending on the type of problems; 1) Cruise Control Cancel Conditions Diagnosis:

  1. This category of diagnosis requires actual vehicle driving in order to determine the cause, as when cruise speed is cancelled during driving although cruise cancel condition is not entered.
  2. Cruise control memory in ECM stores the cancel code which occurred during driving. When there are multiple cancel code, they are shown on the Subaru Select Monitor.

CAUTION:

2) Real-time Diagnosis: Real-time diagnosis function is used to determine whether or not the input signal system is in good order, according to signal emitted from switches, sensors, etc.

  1. Vehicle cannot be driven at cruise speed when the problem occurs in the cruise control system or relevant circuits.
  2. Monitor the signal conditions from switches and sensors.

2. BASIC OPERATION

For the operation procedure, refer to the "PC application help for Subaru Select Monitor".

Read Cancel Code

A: OPERATION

1) On "Main Menu" display, select {Each System Check}.

On "System Selection Menu" display, select {Engine Control System} and select the [OK]. Select [OK] after the engine type information is displayed.

2) Drive vehicle at 40 km/h (25 MPH) or more and set the cruise control.

CAUTION:

3) When the set speed is cancelled by itself (without any cancel operations such as applying brake) or when the cruise control could not be set by performing the setting operation, selecting the {Cancel Code(s) Display} on the engine malfunction diagnosis screen will display the cancel code on the select monitor display.

NOTE: The {Latest Diagnostic Code(s)} and {Memorized Diagnostic Code(s)} are contained in the cancel code. The latest code recognized during current test drive is displayed in {Latest Diagnostic Code(s)}. Cancel codes resulting from fault diagnosis of switches relating to the system and cruise control are also displayed in {Memorized Diagnostic Code(s)}.

4) Perform engine DTC clear memory operation. <Ref. to EN(H4SO)(diag)-51, OPERATION, Clear Memory Mode.> <Ref. to EN(H4DOTC)(diag)-53, OPERATION, Clear Memory Mode.> <Ref. to EN(H6DO)(diag)-57, OPERATION, Clear Memory Mode.>

Cancel code of switches relating to the system and cruise control are deleted by clearing memory on the engine side.

NOTE:

Real-time Diagnosis

A: OPERATION

1) Select {Current Data Display & Save} in "Engine Diagnosis" display screen.

2) Make sure that normal display is shown when operated as follows:

NOTE: For detailed operation procedures, refer to "PC application help for Subaru Select Monitor".

Diagnostics with Phenomenon

A: DIAGNOSTIC PROCEDURE WITH PHENOMENON

Subaru Outback. Cruise Control System (Diagnostics)

B: CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT

TROUBLE SYMPTOM:

Cruise control can be set, but the CRUISE indicator and SET indicator do not illuminate.

Subaru Outback. Cruise Control System (Diagnostics)

List of Cancel Code

A: LIST

NOTE:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

Diagnostic Procedure with Cancel Code

A: 11

When CRUISE switch is pressed, or a malfunction related to CRUISE switch occurs, this is detected.

TROUBLE SYMPTOM:

WIRING DIAGRAM:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

B: 12

Detected when brake pedal is depressed or malfunction related to stop light & brake switch occurs.

TROUBLE SYMPTOM:

WIRING DIAGRAM:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

C: 13

Detected when clutch pedal is depressed or malfunction related to clutch switch occurs.

TROUBLE SYMPTOM:

WIRING DIAGRAM:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

D: 14

Detected when select lever is set in the neutral position, or when malfunction related to neutral position switch occurs.

TROUBLE SYMPTOM:

Cruise control cannot be set.

WIRING DIAGRAM:

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

Subaru Outback. Cruise Control System (Diagnostics)

E: 15

Detected when CANCEL switch is pressed or malfunction related to CRUISE switch occurs.

TROUBLE SYMPTOM:

F: 16

Detected when ignition switch is turned to OFF or malfunction related to the ignition switch occurs.

TROUBLE SYMPTOM:

Cruise control cannot be set.

WIRING DIAGRAM:

Subaru Outback. Cruise Control System (Diagnostics)

G: 21

Cruise control command switch malfunction is detected.

TROUBLE SYMPTOM:

H: 22

Malfunction related to vehicle speed sensor is detected.

DIAGNOSIS:

Open or shorted circuit in vehicle speed sensor system.

TROUBLE SYMPTOM:

Cruise control cannot be set. (Cancelled immediately.)

Subaru Outback. Cruise Control System (Diagnostics)

I: 24

Malfunction in cruise control-related switch is detected.

TROUBLE SYMPTOM:

J: 31

Engine speed signal malfunction is detected.

Abnormal increase of engine speed is detected.

Gear is placed in 1st or Reverse position.

After driving at the 2nd gear position or higher, perform the cruise setting again. If a cancel code is not detected, it is normal.

K: 32

This DTC is detected out of vehicle speed range.

Increase vehicle speed high enough to allow the cruise control to function, and then perform setting operation again.

If cancel code is still detected after setting cruise again, perform the diagnosis for DTC 22.

Refer to DTC 22 for diagnostic procedure.

<Ref. to CC(diag)-23, 22, Diagnostic Procedure with Cancel Code.>

L: 34

The vehicle has been driven at a speed higher than set speed for a long time (approximately 10 minutes) during cruise driving.

This cancel code is detected when driving for a long period of time at a speed higher than appropriate for cruise control setting by operating the accelerator pedal.

Perform the cruise control setting operation again. If the cancel code is not detected, it is normal.

M: 35

Detected when it is impossible to perform the vehicle speed feedback.

Set vehicle speed cannot be kept for some reasons (steep uphill, unreleased parking brake, etc.) during cruise driving.

Cancel code is detected when driving conditions are not suitable for cruise control.

Perform cruise set operation again after clearing the possible cause.

N: 41

VDC/TCS/EPB is operated.

Vehicle dynamics control (VDC) or TCS/EPB is operated during cruise driving or cruise setting.

<Ref. to VDC(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

O: 43

Malfunction of ABS/VDC is detected.

VDC malfunction is detected during cruise driving or cruise setting.

<Ref. to VDC(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

P: 44

Body integrated unit malfunction is detected.

Body integrated unit system malfunction is detected during cruise driving or cruise setting.

<Ref. to LAN(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

Q: 45

Malfunction of the combination meter is detected.

Combination meter malfunction is detected during cruise driving or cruise setting.

<Ref. to LAN(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

R: 49

Automatic transmission malfunction is detected.

Automatic transmission malfunction is detected during cruise driving or cruise setting. <Ref. to 5AT(diag)-2, PROCEDURE, Basic Diagnostic Procedure.> <Ref. to CVT(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

S: 61

Malfunction in the stop light & brake switch is detected.

TROUBLE SYMPTOM:

T: 62

Neutral position switch malfunction is detected.

TROUBLE SYMPTOM:

Cruise control cannot be set.

Refer to DTC 14 for diagnostic procedure.

<Ref. to CC(diag)-20, 14, Diagnostic Procedure with Cancel Code.>

U: 63

Malfunction of vehicle speed signal variation is detected.

TROUBLE SYMPTOM:

Cruise control cannot be set. (Cancelled immediately.) Refer to DTC 22 for diagnostic procedure.

<Ref. to CC(diag)-23, 22, Diagnostic Procedure with Cancel Code.>

V: 64

Malfunction related to engine is detected.

Refer to the Engine Diagnostic Procedure for diagnostic procedure.

<Ref. to EN(H4SO)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

<Ref. to EN(H4DOTC)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

<Ref. to EN(H6DO)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

W: 65

Cruise control command switch malfunction is detected.

While the command switch is pressed ON for a long time (approximately two minutes), stuck ON condition is detected.

TROUBLE SYMPTOM:

X: 66

Cruise control processing malfunction is detected.

Refer to the Engine Diagnostic Procedure for diagnostic procedure.

<Ref. to EN(H4SO)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

<Ref. to EN(H4DOTC)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

<Ref. to EN(H6DO)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

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