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
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
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".
P0725 engine speed
Description The engine speed signal is transmitted from ECM to TCM by CAN communication line. DTC Logic DTC DETECTION LOGI DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe ...P0730 incorrect gear ratio
DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF and wait at least 10 seconds befo ...Other materials:
High pressure fuel pump
Component Function Check
1.CHECK HIGH PRESSURE FUEL PUMP FUNCTION
With CONSULT-III
1. Start engine.
2. Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.
Without CONSULT-III
1. Start engine.
2. Check the voltage between ECM harness connector terminals as per the ...
Road test
Description
DESCRIPTION
• The purpose of the test is to determine overall performance of CVT
and analyze causes of problems.
• The road test consists of the following three parts:
1. “Check Before Engine Is Started” TM-190.
2. “Check at Idle” TM-191.
3. “Cruise Test” TM-192.
• Before road ...
P1650 starter motor relay 2
Description
ECM controls ON/OFF state of the starter relay, according to the engine and
vehicle condition. Models with no
Intelligent Key System transmit a control signal directly to IPDM E/R. On the
other hand, models with the Intelligent
Key System transmit a control signal to IPDM E/R by w ...