Subaru Outback (BR): Continuously Variable 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:

• Inhibitor switch is faulty.
• At least 2 range signal is input.

TROUBLE SYMPTOM:

• Shift characteristics are erroneous.
• The range position of the select lever and the position of shift indicator display do not match.

WIRING DIAGRAM:

B: DTC P0708 AT RANGE SWITCH NOT INPUTTED

DTC DETECTING CONDITION:

• Inhibitor switch is faulty.
• No range signal is input.

TROUBLE SYMPTOM:

• Shift characteristics are erroneous.
• The range position of the select lever and the position of shift indicator display do not match.

WIRING DIAGRAM:

C: DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT

DTC DETECTING CONDITION:

Input signal circuit of ATF temperature sensor is shorted.

TROUBLE SYMPTOM:

• Excessive shift shock
• Shift characteristics malfunction

WIRING DIAGRAM:

D: DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT

DTC DETECTING CONDITION:

Input signal circuit of ATF temperature sensor is open or shorted.

TROUBLE SYMPTOM:

• Excessive shift shock
• Shift characteristics malfunction

WIRING DIAGRAM:

E: DTC P0719 BRAKE SWITCH CIRCUIT LOW

DTC DETECTING CONDITION:

Brake switch malfunction or input signal circuit of brake switch is open or shorted.

TROUBLE SYMPTOM:

• Gear is not shifted down when climbing a hill or driving down a hill.
• Neutral control does not operate.

WIRING DIAGRAM:

F: DTC P0720 OUTPUT SPEED SENSOR CIRCUIT

DTC DETECTING CONDITION:

• Input signal circuit of TCM is open or shorted.
• Front wheel speed sensor malfunction

TROUBLE SYMPTOM:

• Excessive shift shock on N → D or N → R.
• Driving performance is poor.
• Neutral control does not operate.

WIRING DIAGRAM:

G: DTC P0724 BRAKE SWITCH CIRCUIT HIGH

DTC DETECTING CONDITION:

Brake switch malfunction or input signal circuit of brake switch is shorted.

TROUBLE SYMPTOM:

• Gear is not shifted down when driving a down hill.
• Neutral control does not operate.

WIRING DIAGRAM:

H: DTC P0730 GEARSHIFT CONTROL PERFORMANCE ABNORMAL

DTC DETECTING CONDITION:

• Control valve hydraulic circuit malfunction
• Primary UP solenoid, primary DOWN solenoid characteristics malfunction
• CVT chain slippage

TROUBLE SYMPTOM:

• Acceleration is poor during standing start.
• Shift control malfunction
• Engine speed increases abruptly.

I: DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT

NOTE: Refer to "BODY CONTROL SYSTEM" for diagnostic procedure. <Ref. to BC(diag)-31, DTC B1106 SHIFT LOCK CIRCUIT FAILURE, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

J: DTC P0841 SECONDARY OIL PRESSURE SENSOR PERFORMANCE

DTC DETECTING CONDITION:

• Control valve hydraulic circuit malfunction
• Secondary pressure sensor fault or characteristics malfunction

TROUBLE SYMPTOM:

• Acceleration is poor during standing start.
• Shift control malfunction
• Engine speed increases abruptly.

K: DTC P0842 SECONDARY OIL PRESSURE SENSOR CIRCUIT (LOW)

DTC DETECTING CONDITION:

Input signal circuit of secondary pressure sensor is open or shorted.

TROUBLE SYMPTOM:

Shift characteristics malfunction

WIRING DIAGRAM:

L: DTC P0843 SECONDARY OIL PRESSURE SENSOR CIRCUIT (HIGH)

DTC DETECTING CONDITION:

Input signal circuit of secondary pressure sensor is shorted.

TROUBLE SYMPTOM:

Shift characteristics malfunction

WIRING DIAGRAM:

M: DTC P0890 AT SELF-SHUT RELAY DIAGNOSIS (LOW)

DTC DETECTING CONDITION:

• Power supply circuit of TCM is open or shorted.
• Self shut relay malfunction

TROUBLE SYMPTOM:

Gear is not changed.

WIRING DIAGRAM:

N: DTC P0951 MANUAL SWITCH

DTC DETECTING CONDITION:

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

TROUBLE SYMPTOM:

Manual mode can not be set.

WIRING DIAGRAM:

O: DTC P0962 SECONDARY SOLENOID CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of secondary solenoid is shorted.

TROUBLE SYMPTOM:

• Engine speed increases abruptly, and can not start.
• Engine speed increases abruptly during driving.

WIRING DIAGRAM:

P: DTC P0963 SECONDARY SOLENOID CIRCUIT (HIGH)

DTC DETECTING CONDITION:

• Output signal circuit of secondary solenoid is open or shorted.
• Secondary solenoid has open circuit inside.

TROUBLE SYMPTOM:

• Engine speed increases abruptly, and can not start.
• Engine speed increases abruptly during driving.

WIRING DIAGRAM:

Q: DTC P0965 FORWARD & REVERSE SOLENOID FUNCTION

DTC DETECTING CONDITION:

• Control valve hydraulic circuit malfunction
• F&R solenoid characteristics malfunction
• Clutch slippage caused by forward clutch facing deterioration
• Clutch slippage caused by hydraulic pressure leaks

TROUBLE SYMPTOM:

• Engine speed increases abruptly, and can not accelerate.
• Excessive slippage is felt.

R: DTC P0966 FORWARD & REVERSE SOLENOID CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of F&R solenoid is shorted.

TROUBLE SYMPTOM:

Excessive shift shock

WIRING DIAGRAM:

S: DTC P0967 FORWARD & REVERSE LINEAR SOLENOID CIRCUIT (HIGH)

DTC DETECTING CONDITION:

• Output signal circuit of F&R solenoid is open or shorted.
• F&R solenoid has open circuit inside.

TROUBLE SYMPTOM:

Engine speed increases abruptly, and can not start.

WIRING DIAGRAM:

T: DTC P0970 TRANSFER SOLENOID CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of AWD solenoid is shorted.

TROUBLE SYMPTOM:

Drivability getting worse.

WIRING DIAGRAM:

U: DTC P0971 TRANSFER SOLENOID CIRCUIT (HIGH)

DTC DETECTING CONDITION:

• Output signal circuit of AWD solenoid is open or shorted.
• AWD solenoid has open circuit inside.

TROUBLE SYMPTOM:

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

WIRING DIAGRAM:

V: DTC P0973 PRIMARY SOLENOID SYSTEM A CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of primary UP solenoid is shorted.

TROUBLE SYMPTOM:

Gear is not changed. (No up-shift)

WIRING DIAGRAM:

W: DTC P0974 PRIMARY SOLENOID SYSTEM A CIRCUIT (HIGH)

DTC DETECTING CONDITION:

Output signal circuit of primary UP solenoid is open or shorted.

TROUBLE SYMPTOM:

Gear is not changed. (No up-shift)

WIRING DIAGRAM:

X: DTC P0976 PRIMARY SOLENOID SYSTEM B CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of primary DOWN solenoid is shorted.

TROUBLE SYMPTOM:

Gear is not changed. (No down-shift)

WIRING DIAGRAM:

Y: DTC P0977 PRIMARY SOLENOID SYSTEM B CIRCUIT (HIGH)

DTC DETECTING CONDITION:

Output signal circuit of primary DOWN solenoid is open or shorted.

TROUBLE SYMPTOM:

Gear is not changed. (No down-shift)

WIRING DIAGRAM:

Z: DTC P1718 AT CAN COMMUNICATION CIRCUIT

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

AA:DTC P1724 AT EEPROM ERROR

DTC DETECTING CONDITION:

• TCM EEPROM malfunction
• EEPROM writing error during self shut control

TROUBLE SYMPTOM:

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

AB:DTC P1725 AT BODY SYSTEM CAN COMMUNICATION TROUBLE

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

AC:DTC P2746 PRIMARY PULLEY REVOLUTION SPEED SENSOR CIRCUIT

DTC DETECTING CONDITION:

• Output signal circuit of primary speed sensor is open or shorted.
• Primary speed sensor malfunction

TROUBLE SYMPTOM:

• Standing start problems
• Shock occurs when engaging the lockup clutch.
• Neutral control does not operate.

WIRING DIAGRAM:

AD:DTC P2750 SEC. PULLEY REVOLUTION SPEED SENSOR CIRCUIT

DTC DETECTING CONDITION:

• Output signal circuit of secondary speed sensor is open or shorted.
• Secondary speed sensor malfunction

TROUBLE SYMPTOM:

• Shock occurs when selecting N → D, N → R.
• Neutral control does not operate.

WIRING DIAGRAM:

AE:DTC P2762 LOCK-UP DUTY SOLENOID MALFUNCTION

DTC DETECTING CONDITION:

• Lock up clutch malfunction
• Hydraulic leaks or hydraulic valve stick of lock up system
• Hydraulic leaks or hydraulic valve stick of lock up ON/OFF valve system
• Lock up duty solenoid or lock up ON/OFF solenoid characteristics malfunction

TROUBLE SYMPTOM:

• No lock-up occurs.
• Engine speed increases abruptly during driving.

AF:DTC P2763 LOCK-UP DUTY SOLENOID CIRCUIT (HIGH)

DTC DETECTING CONDITION:

Output signal circuit of lock-up duty solenoid is open or shorted.

TROUBLE SYMPTOM:

No lock-up occurs.

WIRING DIAGRAM:

AG:DTC P2764 LOCK-UP DUTY SOLENOID CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of lock up duty solenoid is shorted.

TROUBLE SYMPTOM:

No lock-up occurs.

WIRING DIAGRAM:

AH:DTC P2769 LOCK-UP ON/OFF SOLENOID CIRCUIT (LOW)

DTC DETECTING CONDITION:

Output signal circuit of lock up ON/OFF solenoid is shorted.

TROUBLE SYMPTOM:

No lock-up occurs.

WIRING DIAGRAM:

AI: DTC P2770 LOCK-UP ON/OFF SOLENOID CIRCUIT (HIGH)

DTC DETECTING CONDITION:

Output signal circuit of lock up ON/OFF solenoid is open or shorted.

TROUBLE SYMPTOM:

No lock-up occurs.

WIRING DIAGRAM:

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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