Nissan Pathfinder: Dtc/circuit Diagnosis (P0963-00 Pressure Control Solenoid a ... P277e-00 Clutch a)

• P0963-00 Pressure Control Solenoid a
• P0973-00 Shift Solenoid a
• P1721-00 Vehicle Speed Signal
• P1803-49 Control Module Internal Malfunction
• P1880-00 Clutch Adaptation Mode Monitoring
• P18a5-00 Automatic Park Function Cancellation
• P18a8-00 P Position Switch
• P215c-00 Output Shaft Speed Signal
• P2765-00 Input Speed Sensor B
• P277e-00 Clutch a

P0963-00 Pressure Control Solenoid a Nissan Pathfinder

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0963	00	PC SOLENOID A (Pressure Control Solenoid "A" Control Circuit High)	Diagnosis condition	Ignition is switched on
			Signal	Line pressure control pressure regulator drive signal
			Threshold	The DTC is detected if any of the following conditions is met: The voltage at the output pin is more than specified value The voltage at the output pin is in the specified range
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector (Line pressure control pressure regulator circuit is open or shorted.)

• Sensor unit (Internal harness)

• Line pressure control pressure regulator

• TCM

FAIL-SAFE

Unable driving

DTC Confirmation Procedure

CAUTION:

Always drive vehicle at a safe speed.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Start the engine.

2. Drive the Nissan Pathfinder vehicle for a few minutes under the following conditions.

   Shift position: D position

3. Stop the Nissan Pathfinder vehicle.

4. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

INSPECT CONNECTOR TERMINAL

1. Ignition switch OFF.

2. Disconnect TCM harness connector and A/T unit harness connector.

3. Inspect TCM connector and A/T unit connector for signs of water ingress, and pins for damage and/or corrosion.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace damaged parts.

CHECK LINE PRESSURE CONTROL PRESSURE REGULATOR CIRCUIT FOR SHORT TO GROUND (PART 1)

Check continuity between A/T unit connector terminal and ground.

A/T unit	—	Continuity
Terminal
9	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace sensor unit. Refer to Removal and Installation.

CHECK LINE PRESSURE CONTROL PRESSURE REGULATOR CIRCUIT FOR SHORT TO BATTERY (PART 1)

1. Ignition switch ON.

2. Check voltage between A/T unit connector terminal and ground.

   +	-	Voltage
   A/T unit
   Terminal
   9	Ground	0 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace sensor unit. Refer to Removal and Installation.

CHECK LINE PRESSURE CONTROL PRESSURE REGULATOR CIRCUIT FOR SHORT TO GROUND (PART 2)

1. Ignition switch OFF.

2. Check continuity between TCM harness connector terminal and ground.

   TCM		—	Continuity
   Connector	Terminal
   F15	52	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness connector.

CHECK LINE PRESSURE CONTROL PRESSURE REGULATOR CIRCUIT FOR SHORT TO BATTERY (PART 2)

1. Ignition switch ON.

2. Check voltage between TCM harness connector terminal and ground.

   +		-	Voltage
   TCM
   Connector	Terminal
   F15	52	Ground	0 V

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness connector.

CHECK LINE PRESSURE CONTROL PRESSURE REGULATOR

Check resistance between A/T unit connector terminals.

A/T unit		Resistance (Approx.)
Terminal
1	9	4.5 - 6 Ω

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Replace sensor unit and control valve. Refer to Removal and Installation.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

Replace TCM. Refer to Removal and Installation.

NO>>

INSPECTION END

P0973-00 Shift Solenoid a Nissan Pathfinder 2025

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0973	00	SHIFT SOLENOID A (Shift Solenoid "A" Control Circuit Low)	Diagnosis condition	Ignition is switched on
			Signal	Dog clutch A solenoid valve drive signal
			Threshold	The voltage at the output pin is less than specified value.
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector (Dog clutch A solenoid valve circuit is shorted.)

• Sensor unit (Internal harness)

• Dog clutch A solenoid valve

• TCM

FAIL-SAFE

• Unable driving

• Manual mode is prohibited

• Stop/start system is prohibited (if equipped)

• Neutral hold mode is prohibited (if equipped)

DTC Confirmation Procedure

CAUTION:

Always drive vehicle at a safe speed.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Start the engine.

2. Drive the Nissan Pathfinder vehicle for a few minutes under the following conditions.

   Shift position: D position

3. Stop the Nissan Pathfinder vehicle.

4. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

INSPECT CONNECTOR TERMINAL

1. Ignition switch OFF.

2. Disconnect TCM harness connector and A/T unit harness connector.

3. Inspect TCM connector and A/T unit connector for signs of water ingress, and pins for damage and/or corrosion.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace damaged parts.

CHECK DOG CLUTCH A SOLENOID VALVE CIRCUIT FOR SHORT TO GROUND (PART 1)

Check continuity between A/T unit connector terminal and ground.

A/T unit	—	Continuity
Terminal
2	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace sensor unit. Refer to Removal and Installation.

CHECK DOG CLUTCH A SOLENOID VALVE CIRCUIT FOR SHORT TO GROUND (PART 2)

Check continuity between TCM harness connector terminal and ground.

TCM		—	Continuity
Connector	Terminal
F15	38	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness connector.

CHECK DOG CLUTCH A SOLENOID VALVE

Check resistance between A/T unit connector terminals.

A/T unit		Resistance (Approx.)
Terminal
1	2	9 - 13 Ω

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace sensor unit and control valve. Refer to Removal and Installation.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

Replace TCM. Refer to Removal and Installation.

NO>>

INSPECTION END

P1721-00 Vehicle Speed Signal Nissan Pathfinder 2025

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P1721	00	Nissan Pathfinder Vehicle SPEED SIGNAL (Vehicle Speed Signal)	1	Diagnosis condition	Ignition is switched on
				Signal	Front LH wheel speed signal
				Threshold	Front LH wheel speed signal indicates an abnormal value
				Diagnosis delay time	2 seconds or more
			2	Diagnosis condition	Ignition is switched on
				Signal	Front RH wheel speed signal
				Threshold	Front RH wheel speed signal indicates an abnormal value
				Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Front LH wheel speed signal

• Front RH wheel speed signal

FAIL-SAFE

Not changed from normal driving

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Ignition switch ON and wait for at least 5 seconds.

2. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK DTC (ABS)

With CONSULT

1. Ignition switch ON.

2. Perform “Self Diagnostic Results” in “ABS”.

Is any DTC detected?

YES>>

Check DTC detected item. Refer to DTC Index.

NO>>

INSPECTION END

P1803-49 Control Module Internal Malfunction Nissan Pathfinder Fifth generation

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P1803	49	CONTROL MODULE INTERNAL MALFUNCTION (Control Module Internal Malfunition)	Diagnosis condition	When the Ignition switch is ON
			Signal	—
			Threshold	A malfunction is detected in the electric shift control module
			Diagnosis delay time	—

POSSIBLE CAUSE

Electric shift control module

FAIL-SAFE

• Shifting operation is prohibited

• Manual mode is prohibited

• Stop/start system is prohibited (if equipped)

• Engine torque is limited

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF and wait at least 60 seconds before conducting the next test.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignitino switch ON and wait for 2 seconds or more.

2. Check DTC.

Is DTC detected?

YES>>

Go to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Go to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

REPLACE ELECTRIC SHIFT CONTROL MODULE

Replace the electric shift control module. Refer to Removal and Installation.

>>

END

P1880-00 Clutch Adaptation Mode Monitoring Nissan Pathfinder

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P1880	00	CLUTCH ADAPTATION MODE MONI (Clutch Adaptation Mode Monitoring)	Diagnosis condition	Ignition is switched on
			Signal	—
			Threshold	A/T clutch touch point learning is not completed
			Diagnosis delay time	—

POSSIBLE CAUSE

A/T clutch touch point learning is not completed

FAIL-SAFE

Not changed from normal driving

DTC CONFIRMATION PROCEDURE

NOTE:

This DTC cannot perform the DTC confirmation procedure.

If this DTC is detected, perform diagnosis procedure. Diagnosis Procedure.

Diagnosis Procedure

CHECK DTC (TRANSMISSION)

With CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Results” in “TRANSMISSION”.

P1880-00 is "PAST">>

GO TO 2.

P1880-00 is "CRNT">>

GO TO 3.

ERASE DTC

With CONSULT

Erase DTC of "TRANSMISSION".

>>

WORK END

PERFORM A/T CLUTCH TOUCH POINT LEARNING

With CONSULT

1. Erase DTC of "TRANSMISSION".

2. Perform A/T clutch touch point learning. Refer to Description.

>>

WORK END

P18a5-00 Automatic Park Function Cancellation Nissan Pathfinder SUV

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P18A5	00	AUTO PARK FUNCTION CANCEL (Automatic park function cancellation)	Diagnosis condition	Ignition is switched on
			Signal	—
			Threshold	When the automatic park function is canceled
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

—

FAIL-SAFE

Not changed from normal driving

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Ignition switch ON.

2. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

ACTIVATE AUTOMATIC P POSITION FUNCTION

With CONSULT

1. Ignition switch ON.

2. Select "CANCEL AUTOMATIC PARK FUNCTION" in "Work Support" of "TRANSMISSION".

3. Change the status of "CANCEL AUTOMATIC PARK FUNCTION" from "On" to "Off", and then touch "End".

Without CONSULT

1. Ignition switch ON and wait for at least 5 seconds.

2. Ignition switch OFF and wait for at least 15 seconds.

3. Repeat step 1 to 2 one hundred times. (Electric shift warning lamp stops blinking)

>>

WORK END

P18a8-00 P Position Switch Nissan Pathfinder 2022

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P18A8	00	P POSITION SWITCH (P Position Switch Error)	1	Diagnosis condition	When the Ignition switch is ON
				Signal (terminal)	P position switch No. 1 and No. 2 signal
				Threshold	P position switches No. 1 and No. 2 are stuck at ON or OFF.
				Diagnosis delay time	—
			2	Diagnosis condition	When the Ignition switch is ON
				Signal (terminal)	P position switch No. 1 and No. 2 signal
				Threshold	P position switch No. 1 is stuck at ON and P position switch No. 2 is stuck at OFF.
				Diagnosis delay time	—

P position switch	P position switch
	No. 1	No. 2
Press	ON	OFF
No press	OFF	ON

POSSIBLE CAUSE

• Harness or connectors (P position switch No. 1 and No. 2 circuits are open or shorted.)

• P position switch

FAIL-SAFE

Pushing the P position switch does not switch to the P position

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF and wait at least 60 seconds before conducting the next test.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE (PART 1)

With CONSULT

1. Ignition switch ON.

2. Press the P position switch and wait for 5 seconds or more. (Be sure to press and hold the P position switch for 1 seconds or more.)

3. Repeat step 2 four times.

4. Check DTC.

Is DTC detected?

YES>>

Go to Diagnosis Procedure.

NO>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE (PART 2)

With CONSULT

1. Release the P position switch and wait for 5 minutes or more.

2. Check DTC.

Is DTC detected?

YES>>

Go to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Go to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK HARNESS BETWEEN ELECTRIC SHIFT CONTROL MODULE AND ELECTRIC SHIFT SELECTOR

1. Ignition switch OFF.

2. Disconnect the electric shift control module harness connector.

3. Disconnect the electric shift selector harness connector.

4. Check the continuity between electric shift control module harness connector terminals and electric shift selector harness connector terminals.

   Electric shift control module		Electric shift selector		Continuity
   Connector	Terminal	Connector	Terminal
   M36	20	M208	6	Existed
   	6		18

5. Check the continuity between electric shift control module harness connector terminals and ground.

   Electric shift control module		—	Continuity
   Connector	Terminal
   M36	20	Ground	Not existed
   	6

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace damaged parts.

CHECK P POSITION SWITCH

Check the P position switch. Refer to Component Inspection (P Position Switch).

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the electric shift selector. Refer to Removal and Installation.

Component Inspection (P Position Switch)

CHECK P POSITION SWITCH

1. Disconnect the electric shift selector connectors.

2. Check the continuity between electric shift selector connector terminals.

   Electric shift selector			Condition	Continuity
   P position switch	Terminal
   No. 1	1	6	When P position switch is pressed	Existed
   			When P position switch is released	Not existed
   No. 2	13	18	When P position switch is pressed	Not existed
   			When P position switch is released	Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the electric shift selector due to malfunction in the P position switch. Refer to Removal and Installation.

P215c-00 Output Shaft Speed Signal Nissan Pathfinder R53

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P215C	00	OUTPUT SHAFT SPD - WHEEL SPD (Output Shaft Speed - Wheel Speed Correlation)	Diagnosis condition	Ignition is switched on
			Signal	—
			Threshold	The difference between output speed and wheel speed converted to output level is more than specified value while the transmission is not in fixed gear.
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Tire (Size is different from an original)

• TCM

FAIL-SAFE

• Shifting is locked

  • While driving: Keeps the gear position when an abnormality is detected

  • When the Nissan Pathfinder vehicle is stopped: Locks in 4th gear position

• Manual mode is prohibited

• Stop/start system is prohibited (if equipped)

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Start the engine.

2. Drive the Nissan Pathfinder vehicle for a few minutes under the following conditions.

   Shift position: D position

3. Stop the Nissan Pathfinder vehicle.

4. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK FOR TIRE SIZE

Check the tires are the original size of the Nissan Pathfinder vehicle.

Is the inspection result normal?

YES>>

Replace TCM. Refer to Removal and Installation.

NO>>

Replace with the correct size tire.

P2765-00 Input Speed Sensor B Nissan Pathfinder R53

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P2765	00	INPUT SPEED SENSOR B (Input/Turbine Shaft Speed Sensor "B" Circuit)	Diagnosis condition	While driving Shift position: Other than P and N
			Signal	—
			Threshold	Positive torque intervention is more than the specified value and the absolute value of the difference between the current input speed gradient and the current output speed gradient multiplied by the current gear ratio is less than the specified value
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

TCM

FAIL-SAFE

• Shifting is locked

  • While driving: Keeps the gear position when an abnormality is detected

  • When the Nissan Pathfinder vehicle is stopped: Locks in 4th gear position

• Manual mode is prohibited

• Stop/start system is prohibited (if equipped)

DTC Confirmation Procedure

CAUTION:

Always drive vehicle at a safe speed.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION

1. Start the engine.

2. Drive the Nissan Pathfinder vehicle for a few minutes under the following conditions.

   Shift position: D position

3. Stop the Nissan Pathfinder vehicle.

4. Check DTC.

Is DTC detected?

YES>>

Proceed to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

REPLACE TCM

Replace TCM. Refer to Removal and Installation.

>>

WORK END

P277e-00 Clutch a Nissan Pathfinder R53

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P277E	00	CLUTCH A GEAR DISENGAGEMENT (Clutch "A" Unexpected Mechanical Gear Disengagement)	Diagnosis condition	Ignition is switched on
			Signal	—
			Threshold	During function with engine off and no pump pressure available, the dog clutch A moves unintended from the position engaged into direction of disengaged.
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Dog clutch A

• Dog clutch A solenoid valve

• Control valve

FAIL-SAFE

Unable driving

DTC Confirmation Procedure

CAUTION:

Always drive vehicle at a safe speed.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 15 seconds, then perform the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 9 V.

>>

GO TO 2.

PERFORM DTC DETECTION (PART 1)

1. Start the engine.

2. Drive the Nissan Pathfinder vehicle for a few minutes under the following conditions.

   Shift position: D position

3. Stop the Nissan Pathfinder vehicle.

4. Check DTC.

Is DTC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO>>

GO TO 3.

PERFORM DTC DETECTION (PART 2)

1. Start the engine.

2. Maintain stop/start system operation state for 10 seconds or more. Refer to System Description.

3. Restart the engine.

4. Repeat step 2 to 3 3 times.

5. Check DTC.

Is DTC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK DTC (TRANSMISSION)

With CONSULT

1. Ignition switch ON.

2. Perform “Self Diagnostic Results” in “TRANSMISSION”.

Is DTC other than P277E detected?

YES>>

Check DTC detected item. Refer to DTC Index.

NO>>

GO TO 2.

CHECK A/T FLUID

1. Ignition switch OFF.

2. Check A/T fluid level and condition. Refer to Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

1. If A/T fluid is leaking, repair damaged part. Refer to Inspection.

2. Refill or replace A/T fluid. Refer to Adjustment or Replacement.

REPLACE TRANSAXLE ASSEMBLY

Removal transaxle assembly. Refer to Removal and Installation.

>>

WORK END