Subaru Outback: Basic Diagnostic Procedure
A: PROCEDURE
CAUTION:
When removing or installing, remove all foreign matter (dust, water, and oil)
from the electronic parking
brake control module connectors.
NOTE:
- To check the harness for open or short circuits, shake problem spot or
connector.
- Refer to "Check List for Interview". <Ref. to PB(diag)-4, Check List for
Interview.>


Check List for Interview
A: CHECK
Check the following item about the vehicle's state.
1. STATE OF BRAKE WARNING LIGHT

2. STATE OF ELECTRONIC PARKING BRAKE WARNING LIGHT (C6 MODEL ONLY)

3. HILL HOLD INDICATOR LIGHT CONDITION

4. CONDITIONS UNDER WHICH TROUBLE OCCURS

General Description
A: CAUTION
1. SUPPLEMENTAL RESTRAINT SYSTEM
"AIRBAG"
Airbag system wiring harness is routed near the
parking brake switch, hill hold switch and electronic
parking brake control module.
CAUTION:
- Do not use electrical test equipment on the
airbag system circuits.
- Be careful not to damage the airbag system
wiring harness, when servicing the parking
brake switch, hill hold switch and electronic
parking brake control module.
B: INSPECTION
Before performing diagnosis, inspect the following
items which may influence parking brake system
problems.
1. BATTERY
Measure the battery voltage and specific gravity of
the electrolyte.
Standard voltage:
12 V or more
Specific gravity:
1.260 or more
2. GROUND
Check the tightening torque of ground (GB-9 and
10) bolts of the parking brake system.
Tightening torque:
13 N*m (1.3 kgf-m, 9.6 ft-lb)
3. BRAKE DRAG
Check for brake drag.
4. PARKING BRAKE ASSEMBLY
Check and adjust the parking brake assembly.
- Check the disc rotor inner diameter and lining
thickness. <Ref. to PB-15, INSPECTION, Parking
Brake Assembly (Rear Disc Brake).>
- Adjust the shoe clearance. <Ref. to PB-15, ADJUSTMENT,
Parking Brake Assembly (Rear Disc
Brake).>
5. TIRE
Check the tire specifications, tire wear and air pressure.
<Ref. to WT-2, SPECIFICATION, General
Description.>
C: PREPARATION TOOL
1. SPECIAL TOOL

2. GENERAL TOOL

Electrical Component Location
A: LOCATION

- Electronic parking brake control
module
- Parking brake switch
- Hill hold switch
- Hill hold indicator light
- Electronic parking brake warning
light (C6 model only)
- Brake warning light (C0, C5 and
C6 models)
- Brake warning light (U4, U5 and
U6 models)
- Clutch stroke sensor (MT model
only)
- VDC control module and hydraulic
control unit (VDCCM&H/U)
- Body integrated unit
- Engine control module (ECM)
- Data link connector

Control Module I/O Signal
A: ELECTRICAL SPECIFICATION

NOTE:
The terminal numbers of the electronic parking brake control module connectors
are as indicated in the figure.

B: WIRING DIAGRAM

- Battery
- Ignition switch
- Electronic parking brake CM
- Engine control module (ECM)
- VDC control module
- Transmission control module
- Combination meter
- Body integrated unit
- Clutch stroke sensor (MT model
only)
- Hill hold switch
- Parking brake switch
- Hill hold indicator light
- Electronic parking brake warning
light (C6 model only)
- Brake warning light
READ NEXT:
A: OPERATION
1. HOW TO USE SUBARU SELECT MONITOR
NOTE:
For detailed operation procedures, refer to "PC
application help for Subaru Select Monitor".
If communication is not possible between the
el
A: OPERATION
NOTE:
For detailed operation procedures, refer to "PC
application help for Subaru Select Monitor".
For details concerning DTCs, refer to "List of Diagnostic
Trouble Code (DTC)". <
A: LIST
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC C0221 PARKING POSITION SWITCH
DTC DETECTING CONDITION:
Defective parking brake switch
Defective harness connector
TROUBLE S
SEE MORE:
With the vehicle either moving or stationary, move the select lever from the
“D” position to the “M” position to select the manual mode.
1) Upshift indicator
2) Downshift indicator
3) Gear position indicator
When the manual mode is selected, the gear position indicator and upshift
General Description
A: SPECIFICATION
B: COMPONENT
Accelerator pedal ASSY
Clip
Accelerator plate
Accelerator stopper
Tightening torque: N*m (kgf-m, ft-lb)
T: 18 (1.8, 13.3)
C: CAUTION
Wear appropriate work clothing, including a cap,
protective goggles and protective shoes when performing
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