Subaru Outback (BR): Automatic Transmission - List of Diagnostic Trouble Code (DTC)

A: LIST

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

A: DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT)

DTC DETECTING CONDITION:

The inhibitor switch is open or short.

TROUBLE SYMPTOM:

• Shift characteristics are erroneous.
• Shift indicator does not match with select lever.
• Shift indicator does not illuminate.
• N-D, N-R shock occur.

WIRING DIAGRAM:

B: DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT

DTC DETECTING CONDITION:

Input signal circuit to ATF temperature sensor is open.

TROUBLE SYMPTOM:

Excessive shift shock

WIRING DIAGRAM:

C: DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT

DTC DETECTING CONDITION:

Input signal circuit to ATF temperature sensor is shorted.

TROUBLE SYMPTOM:

Excessive shift shock

WIRING DIAGRAM:

D: DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT

DTC DETECTING CONDITION:

Input signal circuit of TCM is open or shorted.

TROUBLE SYMPTOM:

• Excessive shift shock
• Does not shift to 5th.

WIRING DIAGRAM:

E: DTC P0719 BRAKE SWITCH CIRCUIT LOW

DTC DETECTING CONDITION:

Brake switch malfunction, open input signal circuit

TROUBLE SYMPTOM:

Brake down control does not operate in manual mode.

WIRING DIAGRAM:

F: DTC P0720 OUTPUT SPEED SENSOR CIRCUIT

DTC DETECTING CONDITION:

• AT vehicle speed signal is abnormal.
• The harness connector between TCM and vehicle speed sensor is open or shorted.

TROUBLE SYMPTOM:

• Shifting quality malfunction
• Driving performance is poor.

WIRING DIAGRAM:

G: DTC P0724 BRAKE SWITCH CIRCUIT HIGH

DTC DETECTING CONDITION:

Brake switch malfunction, open input signal circuit

TROUBLE SYMPTOM:

Gear is not shifted down when climbing a hill.

WIRING DIAGRAM:

H: DTC P0731 GEAR 1 INCORRECT RATIO

NOTE: Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

I: DTC P0732 GEAR 2 INCORRECT RATIO

NOTE: Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

J: DTC P0733 GEAR 3 INCORRECT RATIO

NOTE: Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

K: DTC P0734 GEAR 4 INCORRECT RATIO

NOTE: Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

L: DTC P0735 GEAR 5 INCORRECT RATIO

NOTE: Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

M: DTC P0736 REVERSE INCORRECT RATIO

DTC DETECTING CONDITION:

Target gear ratio and actual gear ratio do not match.

TROUBLE SYMPTOM:

• Shift point is too high or too low.
• Excessive shift shock
• Gear is not changed.
• The vehicle does not move in "D" or "R" range with the engine running at high speed.

N: DTC P0741 TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

• Lock up clutch malfunction
• Defective torque converter assembly
• Defective control valve
• Defective turbine speed sensor 1 or 2

TROUBLE SYMPTOM:

No lock-up occurs. (After engine is warmed up)

O: DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICAL

DTC DETECTING CONDITION:

The output signal circuit of lock up solenoid is open or shorted.

TROUBLE SYMPTOM:

No lock-up occurs. (After engine is warmed up)

WIRING DIAGRAM:

P: DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL

DTC DETECTING CONDITION:

Output signal circuit of line pressure solenoid is open or shorted.

TROUBLE SYMPTOM:

Excessive shift shock

WIRING DIAGRAM:

Q: DTC P0751 SHIFT SOLENOID "A" PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

Output signal of front brake solenoid does not match with oil pressure.

TROUBLE SYMPTOM:

Locked to 1st gear.

WIRING DIAGRAM:

R: DTC P0753 SHIFT SOLENOID "A" ELECTRICAL

DTC DETECTING CONDITION:

Output signal circuit of front brake solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 1st gear.

WIRING DIAGRAM:

S: DTC P0756 SHIFT SOLENOID "B" PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

Output signal value of input clutch solenoid and oil pressure does not match.

TROUBLE SYMPTOM:

Locked to 1st or 4th gear.

WIRING DIAGRAM:

T: DTC P0758 SHIFT SOLENOID "B" ELECTRICAL

DTC DETECTING CONDITION:

Output signal circuit of input clutch solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 1st or 4th gear.

WIRING DIAGRAM:

U: DTC P0761 SHIFT SOLENOID "C" PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

Output signal value of high & low reverse clutch solenoid and oil pressure does not match.

TROUBLE SYMPTOM:

Locked to 1st gear.

WIRING DIAGRAM:

V: DTC P0763 SHIFT SOLENOID "C" ELECTRICAL

DTC DETECTING CONDITION:

Output signal circuit of high & low reverse clutch solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 1st gear.

WIRING DIAGRAM:

W: DTC P0766 SHIFT SOLENOID "D" PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

Output signal value of direct clutch solenoid and oil pressure does not match.

TROUBLE SYMPTOM:

Locked to 1st or 4th gear.

WIRING DIAGRAM:

X: DTC P0768 SHIFT SOLENOID "D" ELECTRICAL

DTC DETECTING CONDITION:

The output signal circuit of direct clutch solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 1st or 4th gear.

WIRING DIAGRAM:

Y: DTC P0771 SHIFT SOLENOID "E" PERFORMANCE OR STUCK OFF

DTC DETECTING CONDITION:

Output signal of forward brake solenoid does not match the oil pressure.

TROUBLE SYMPTOM:

Locked to 2nd, 3rd or 4th gear.

WIRING DIAGRAM:

Z: DTC P0773 SHIFT SOLENOID "E" ELECTRICAL

DTC DETECTING CONDITION:

Output signal circuit of forward brake solenoid is open or shorted.

TROUBLE SYMPTOM:

Locked to 2nd, 3rd or 4th gear.

WIRING DIAGRAM:

AA:DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT

DTC DETECTING CONDITION:

Shift lock solenoid malfunction, open or short reverse inhibitor control circuit

TROUBLE SYMPTOM:

• Gear is shifted from "N" range to "R" range during driving at 20 km/h (12 MPH) or more.
• Gear cannot be shifted from "N" range to "R" range though the vehicle is parked.

WIRING DIAGRAM:

AB:DTC P0817 STARTER DISABLE CIRCUIT

DTC DETECTING CONDITION:

Open or short in P/N signal output circuit

TROUBLE SYMPTOM:

• Engine can be started on other than "P" or "N" range.
• Engine can not be started on "P" or "N" range.

WIRING DIAGRAM:

AC:DTC P0957 BACKUP LIGHT RELAY CIRCUIT LOW

DTC DETECTING CONDITION:

Output circuit of the back-up light relay is open or shorted

TROUBLE SYMPTOM:

Back-up light does not illuminate in "R" range.

WIRING DIAGRAM:

AD:DTC P0958 BACKUP LIGHT RELAY CIRCUIT HIGH

DTC DETECTING CONDITION:

Output circuit of the back-up light relay is open or shorted

TROUBLE SYMPTOM:

Back-up light does not illuminate in "R" range.

WIRING DIAGRAM:

AE:DTC P1706 AT VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION (REAR WHEEL)

DTC DETECTING CONDITION:

Input signal circuit of TCM is open or shorted.

TROUBLE SYMPTOM:

Shifting quality malfunction

WIRING DIAGRAM:

AF:DTC P1707 AT AWD SOLENOID VALVE CIRCUIT MALFUNCTION

DTC DETECTING CONDITION:

Output signal circuit of transfer solenoid is open or shorted.

TROUBLE SYMPTOM:

• Tight corner braking phenomenon occurs.
• Drivability getting worse.

WIRING DIAGRAM:

AG:DTC P1710 TORQUE CONVERTER TURBINE 2 SPEED SIGNAL CIRCUIT MALFUNCTION

DTC DETECTING CONDITION:

Input signal circuit of TCM is open or shorted.

TROUBLE SYMPTOM:

• Excessive shift shock
• Does not shift to 5th.

WIRING DIAGRAM:

AH:DTC P1718 AT CAN COMMUNICATION CIRCUIT

NOTE: Refer to "LAN SYSTEM" for diagnostic procedure. <Ref. to LAN(diag)-2, Basic Diagnostic Procedure.>

AI: DTC P1724 AT EEPROM ERROR

DTC DETECTING CONDITION:

TCM EEPROM malfunction

TROUBLE SYMPTOM:

• AT learning is not finished.
• Shock occurs when selecting N → D, N → R.

AJ:DTC P1817 SPORTS MODE SWITCH CIRCUIT (MANUAL SWITCH)

DTC DETECTING CONDITION:

Input signal circuit of manual mode switch is open or shorted.

TROUBLE SYMPTOM:

• Manual mode can not be set.
• Shift indicator displays when shifting "N" → "D".

WIRING DIAGRAM:

AK:DTC P1840 TRANSMISSION FLUID PRESSURE SENSOR SWITCH A CIRCUIT

DTC DETECTING CONDITION:

Front brake oil pressure switch malfunction

TROUBLE SYMPTOM:

Excessive shift shock

NOTE: Refer to DTC P0751 for diagnostic procedure. <Ref. to 5AT(diag)-59, DTC P0751 SHIFT SOLENOID "A" PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

AL:DTC P1841 TRANSMISSION FLUID PRESSURE SENSOR SWITCH B CIRCUIT

DTC DETECTING CONDITION:

Forward brake oil pressure switch malfunction.

TROUBLE SYMPTOM:

Excessive shift shock

NOTE: Refer to DTC P0771 for diagnostic procedure. <Ref. to 5AT(diag)-75, DTC P0771 SHIFT SOLENOID "E" PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

AM:DTC P1842 TRANSMISSION FLUID PRESSURE SENSOR SWITCH C CIRCUIT

DTC DETECTING CONDITION:

Input clutch oil pressure switch is malfunction.

TROUBLE SYMPTOM:

Excessive shift shock

NOTE: Refer to DTC P0756 for diagnostic procedure. <Ref. to 5AT(diag)-63, DTC P0756 SHIFT SOLENOID "B" PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

AN:DTC P1843 TRANSMISSION FLUID PRESSURE SENSOR SWITCH D CIRCUIT

DTC DETECTING CONDITION:

Direct clutch oil pressure switch malfunction.

TROUBLE SYMPTOM:

Excessive shift shock

NOTE: Refer to DTC P0766 for diagnostic procedure. <Ref. to 5AT(diag)-71, DTC P0766 SHIFT SOLENOID "D" PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

AO:DTC P1844 TRANSMISSION FLUID PRESSURE SENSOR SWITCH E CIRCUIT

DTC DETECTING CONDITION:

High & low reverse clutch oil pressure switch malfunction.

TROUBLE SYMPTOM:

Excessive shift shock

NOTE: Refer to DTC P0761 for diagnostic procedure. <Ref. to 5AT(diag)-67, DTC P0761 SHIFT SOLENOID "C" PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

Diagnostic Procedure without Diagnostic Trouble Code (DTC)

A: CHECK SHIFT INDICATOR

DIAGNOSIS:

• Output signal circuit of shift indicator is open or shorted.
• Combination meter malfunction

TROUBLE SYMPTOM:

• Shift indicator does not display or remains displayed.
• Shift indicator display does not change.

WIRING DIAGRAM:

Diagnostics with Phenomenon

A: INSPECTION

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