Subaru Legacy IV (2008 year). Service manual - part 776

5AT(diag)-119

General Diagnostic Table

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

Engine skids when driving at 5th. Or slipping occurred.

• Fluid level and condition
• Line pressure
• Accelerator pedal position sensor
• Throttle position sensor
• CAN communication signal
• Oil pressure switch 1 and front brake solenoid valve

Slip at lock up.

• Fluid level and condition
• Line pressure
• Engine speed signal
• Turbine speed sensor 1 and turbine speed sensor 2
• Lock up solenoid valve
• CAN communication signal

Maximum vehicle speed is low.

• Fluid level and condition
• Line pressure
• Accelerator pedal position sensor
• Throttle position sensor
• CAN communication signal
• Direct clutch solenoid valve
• Vehicle speed sensor 1 and 2

There is completely no creep.

• Fluid level and condition
• Engine speed signal
• CAN communication signal
• Oil pressure switch 4 and direct clutch solenoid valve
• Line pressure

Excessive large creep.

• Engine speed signal
• CAN communication signal
• Oil pressure switch 4

Vehicle cannot be parking condition on “P” range. Parking con-
dition is not released though shifting to other ranges.

• Inhibitor switch
• Control cable adjustment

Vehicle can drive on “P” range.

• Inhibitor switch
• Fluid level and condition
• Control cable adjustment
• Line pressure

Vehicle can drive on “N” range.

• Inhibitor switch
• Fluid level and condition
• Control cable adjustment
• Line pressure

Vehicle cannot drive at any range.

• Fluid level and condition
• Line pressure
• Inhibitor switch
• Control cable adjustment
• Loosing or damaging of propeller shaft.
• Loosing or damaging of drive shaft.

Vehicle cannot drive on “D” range.

• Fluid level and condition
• Line pressure
• Inhibitor switch
• Control cable adjustment
• Loosing or damaging of propeller shaft.
• Loosing or damaging of drive shaft.

Vehicle cannot drive on “R” range.

• Fluid level and condition
• Line pressure
• Inhibitor switch
• Control cable adjustment
• Loosing or damaging of propeller shaft.
• Loosing or damaging of drive shaft.

Symptom

Problem parts

5AT(diag)-120

General Diagnostic Table

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

Engine cannot start on “N” or “P” range

• Push engine switch and starter
• Control cable adjustment
• Inhibitor switch
• CAN communication line
• TCM

Engine start other than “N” or “P” range

• Push engine switch and starter
• Control cable adjustment
• Inhibitor switch
• TCM

Engine stalls.

• Fluid level and condition
• Engine speed signal
• Turbine speed sensor 1 and turbine speed sensor 2
• Lock up solenoid valve
• Line pressure

Engine stalls when shifting to “N” 

o “D” and “R” range.

• Fluid level and condition
• Engine speed signal
• Turbine speed sensor 1 and turbine speed sensor 2
• Lock up solenoid valve
• Line pressure

Symptom

Problem parts

5MT-2

General Description

MANUAL TRANSMISSION AND DIFFERENTIAL

1. General Description

A: SPECIFICATION

1. MANUAL TRANSMISSION AND DIFFERENTIAL

Model

2.5 L non-turbo model

2.5 L turbo model

Except for 

OUTBACK

OUTBACK

Except for 

OUTBACK

OUTBACK

Type

5-forward speeds and 1-reverse

Transmission gear ratio

1st

3.454

3.166

2nd

2.062

1.882

3rd

1.448

1.296

4th

1.088

0.972

5th

0.780

0.825

0.738

Reverse

3.333

Front reduction gear

Final

Type of gear

Hypoid

Gear ratio

3.900

4.111

3.900

4.444

Rear reduction gear

Transfer

Type of gear

Helical

Gear ratio

1.000

Final

Type of gear

Hypoid

Gear ratio

3.900

4.111

3.900

4.444

Front differential

Type and number of gear

Straight bevel gear (Bevel pinion: 2, Bevel gear: 2)

Center differential

Type and number of gear

Straight bevel gear (Bevel pinion: 2, bevel gear: 2 and viscous coupling)

Transmission gear oil

GL-5

Transmission gear oil capacity

Single-range 
model

3.5

2 (3.7 US qt, 3.1 Imp qt)

5MT-3

General Description

MANUAL TRANSMISSION AND DIFFERENTIAL

2. TRANSMISSION GEAR OIL

Recommended oil:

GL-5 (75W-90) or equivalent

3. TRANSMISSION CASE ASSEMBLY

Drive pinion shim adjustment

Hypoid gear backlash:

0.13 — 0.18 mm (0.0051 — 0.0071 in)

Selection of main shaft rear plate

4. DRIVE PINION ASSEMBLY

Preload adjustment of thrust bearing

Starting torque:

0.3 — 0.8 N·m (0.03 — 0.08 kgf-m, 0.2 — 0.6 ft-lb)

5. REVERSE IDLER GEAR

Adjustment of reverse idler gear position

Reverse idler gear to transmission case (LH) 
wall clearance:

6.0 — 7.5 mm (0.236 — 0.295 in)

After installing a suitable reverse shifter lever, ad-
just the clearance using washers.

Reverse idler gear to transmission case wall 
clearance:

0 — 0.5 mm (0 — 0.020 in)

Drive pinion shim

Part number

Thickness

mm (in)

Part number

Thickness

mm (in)

32295AA031

0.150 

(0.0059)

32295AA071

0.250

(0.0098)

32295AA041

0.175 

(0.0069)

32295AA081

0.275

(0.0108)

32295AA051

0.200 

(0.0079)

32295AA091

0.300

(0.0118)

32295AA061

0.225 

(0.0089)

32295AA101

0.500

(0.0197)

Main shaft rear plate

Dimension “A” mm (in)

Part number

Mark

4.00 — 4.13

(0.1575 — 0.1626)

32294AA041

1

3.87 — 4.00

(0.1524 — 0.1575)

32294AA051

2

Adjusting washer No. 1

Part number

Thickness mm (in)

803025051

3.925 (0.1545)

803025052

3.950 (0.1555)

803025053

3.975 (0.1565)

803025054

4.000 (0.1575)

803025055

4.025 (0.1585)

803025056

4.050 (0.1594)

803025057

4.075 (0.1604)

Adjusting washer No. 2

Part number

Thickness mm (in)

803025059

3.850 (0.1516)

803025054

4.000 (0.1575)

803025058

4.150 (0.1634)

Reverse shifter lever

Part number

Mark

Remarks

32820AA070

7

Further from case wall

32820AA080

8

Standard

32820AA090

9

Closer to the case wall

Washer (20.5 × 26 × t)

Part number

Thickness 

mm (in)

Part number

Thickness 

mm (in)

803020151

0.4 (0.016)

803020154

1.9 (0.075)

803020152

1.1 (0.043)

803020155

2.3 (0.091)

803020153

1.5 (0.059)

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