Nissan Juke Service and Repair Manual : P0730 incorrect gear ratio

Description

TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and the secondary pulley revolution speed as input signal. Then it changes the operating pressure of the primary pulley and the secondary pulley and changes the groove width of the pulley.

DTC Logic

DTC DETECTION L

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.

NOTE:

If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF and wait at least 10 seconds before performing the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.CHECK DTC DETECTION

1. Turn ignition switch ON.With CONSULT-III


1. Turn ignition switch ON.

2. Select “DATA MONITOR” in “TRANSMISSION”.

3. Make sure that output voltage of CVT fluid temperature sensor is within the range below.

ATF TEMP SEN : 1.0 – 2.0 V If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)

4. Start engine and maintain the following conditions for at least 30 consecutive seconds.

TEST START FROM 0 km/h (0 MPH) CONSTANT ACCELERATION : Keep 30 seconds or more VEHICLE SPEED : 10 km/h (6 MPH) or more ACC PEDAL OPEN : More than 1.0/8 RANGE : “D” position
ENG SPEED : 450 rpm or more

Is “P0730” detected? YES >> Go to TM-214, "Diagnosis Procedure".

NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".

Diagnosis Procedure

1.CHECK DTC

1. Turn ignition switch ON.

2. Select “SELF-DIAG RESULTS”.

Are any DTC displayed? YES - 1 (DTC except for “P0730” is displayed)>>Check the DTC detected item. Refer to TM-159, "CONSULT- III Function (TRANSMISSION)".

YES - 2 (DTC for “P0730” is displayed)>>Replace the transaxle assembly. Refer to TM-301, "Removal and Installation".

NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".

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