Nissan Altima 2007-2012 Service Manual: P0730 belt damage

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 LOGIC

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.

Then wait at least 10 seconds before performing the next test.

1.CHECK DTC DETECTION

1. Turn ignition switch ON.

2. Select “DATA MONITOR”.

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.

Is “P0730 BELT DAMG” detected? YES >> Go to TM-143, "Diagnosis Procedure".

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

Diagnosis Procedure

1.CHECK DTC

1. Turn ignition switch ON.

2. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

Are any DTC displayed? YES-1 >> DTC for “P0730 BELT DAMG” is displayed: Go to replace transaxle assembly. Refer to TM-259, "Exploded View".

YES-2 >> DTC except for “P0730 BELT DAMG” is displayed: Go to check DTC detected item. Refer to TM- 221, "DTC Index".

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

    P0725 engine speed signal
    Description The engine speed signal is sent from the ECM to the TCM by CAN communication line. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a sa ...

    P0740 torque converter clutch solenoid valve
    Description • The torque converter clutch solenoid valve is activated by the TCM in response to signals sent from the vehicle speed and accelerator pedal position sensors. Lock-up piston operati ...

    Other materials:

    Tire dressings
    dressings. Tire manufacturers apply a coating to the tires to help reduce discoloration of the rubber. If a tire dressing is applied to the tires, it may react with the coating and form a compound. This compound may come off the tire while driving and stain the vehicle paint. If you choose ...

    Checking engine coolant level
    Check the coolant level in the reservoir when the engine is cold. If the coolant level is below the MIN level B , add coolant to the MAX level A . If the reservoir is empty, check the coolant level in the radiator when the engine is cold. If there is insufficient coolant in the radiator, fill ...

    Final drive
    Exploded View Refer to TM-28, "Exploded View". Disassembly 1. Remove final gear mounting bolts and then separate the final gear from differential case. 2. Remove differential side bearing (clutch housing side) using Tool and pullers (B). Tool number : ST33061000 (J-8107-2) C ...