Nissan Murano: Dtc/circuit Diagnosis / P17f1 Cvt Judder (c/v Inspection)

DTC Description

NOTE:

The customer reports CVT judder (shake, shudder, single or multiple bumps or vibration) hesitation on acceleration, lack of power or RPM flare. If DTC P17F1 is detected on his/her Nissan Murano vehicle, this diagnosis is required. However, if DTC P17F1 is detected on the vehicle without the above phenomena, this diagnosis is not required.

DTC DETECTION LOGIC

POSSIBLE CAUSE

Control valve assembly

FAIL-SAFE

Not changed from normal driving

NOTE:

The customer reports CVT judder (shake, shudder, single or multiple bumps or vibration) hesitation on acceleration, lack of power or RPM flare. If DTC P17F1 is detected on his/her Nissan Murano vehicle, perform first the trouble diagnosis procedure for DTC P17F1. Refer to Diagnosis Procedure.

CAUTION:

• Always drive vehicle at a safe speed.

CHECK DTC DETECTION AFTER DIAGNOSIS PROCEDURE

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Perform test drive for 5 minutes or more.

4. Stop the Nissan Murano vehicle.

5. Check the DTC.

Is "judder" (shake, shudder, single or multiple bumps or viblation) occurred and is "P17F1" detected?

Go to Diagnosis Procedure.

INSPECTION END

CHECK DTC PRIORITY

When DTC P0776 is displayed together with P17F0, diagnose first the P17F0.

Is "P17F0" detected?

Perform diagnosis of P17F0. Refer to Diagnosis Procedure.

GO TO 2.

INSPECT CVT CHAIN

Inspect the CVT chain. Refer to Component Inspection.

Is CVT chain OK?

GO TO 3.

GO TO 4.

INSTALL NEW CONTROL VALVE

Install new control valve. Refer to Removal and Installation.

WORK END

REPLACE SUB-ASSEMBLY AND INSTALL NEW CONTROL VALVE

Replace sub-assembly and install new control valve. Refer to Disassembly & Assembly.

WORK END

CVT CHAIN BELT INSPECTION

CAUTION:

Never allow any chemicals or fluids other than NS-3 CVT fluid or equivalent to enter the CVT assembly. Never allow any foreign debris, dust, dirt, etc. to enter the CVT assembly.

NOTE:

Before lifting the vehicle:

1. Remove the control valve. Refer to Removal and Installation.

2. Secure the right front tire with a suitable strap . This will assist in making the chain belt turn.

   

3. Mark the left front tire with a suitable marking. This will ensure all 360° of the chain belt is inspected.

4. Using borescope J-51951 with mirror attachment, visually inspect the entirety of the two sides of the chain belt that come in contact with the pulleys . Slowly and carefully turn the left front tire one full turn in the forward rotation to view all of the chain belt.

   

   	Guide rail
   	: Front

   CAUTION:

   If the tire is rotated in the rearward rotation, the camera lens may get caught between the chain belt and the pulley.

   NOTE:

   • Be sure to remove the protective film from the mirror before the first use.

   • Clean the camera lens and mirror before each inspection. Use 90% isopropyl alcohol, and a lens swab from Lens Swab packet J-51963.

   • Before inspecting, make sure the camera handle’s AA batteries are fresh and the LCD monitor’s battery is charged.

   1. Route the camera cable past the primary pulley and position the camera lens behind the plastic guide. See figure below.

      NOTE:

      For best picture, position camera lens 10mm away from chain belt.

      

      	Chain belt		Camera cable		Secondary pulley
      	Plastic guide		Primary pulley		: Front

   2. First inspect the entire 360° of the driver side of the chain belt that comes in contact with the pulley. Refer to figures below for examples of normal and excessive wear patterns.

      

      	Pulley
      	Guide rail
      	Camera flexible tube
      	Chain belt

      NOTE:

      • Insert the camera lens behind the pulley past the guide rail and between the chain belt and the CVT case.

      • Insert the lens approximately 8-9 inches, and then view the side of the chain belt that contacts the pulley.

      • Holding the borescope with one hand allows for turning the tire with the other hand.

   3. If the inspection result is OK on all 360° of the driver side, inspect all 360° of the passenger side of the chain belt. Refer to figures below for examples of normal and excessive wear patterns.

      

      	Chain belt
      	Pulley
      	Camera flexible tube
      	Guide rail

CHAIN BELT WEAR PATTERNS

Examples of OK (normal) wear patterns.

• Chain contact surfaces appear smooth.

Examples of NG (abnormal) wear patterns.

• Chain contact surfaces show visible scuffing.