Nissan Altima 2007-2012 Service Manual: TPMS

System Diagram

System Description

BODY CONTROL MODULE (BCM)

The BCM is shown with the instrument panel LH removed. The BCM reads the air pressure signal received by the tire pressure receiver, and controls the low tire pressure warning lamp as shown below. It also has a self-diagnosis function to detect a system malfunction.

TRANSMITTER

A sensor-transmitter integrated with a valve is installed in each wheel. It transmits a detected air pressure signal in the form of a radio wave when the vehicle is moving. The radio signal is received by the tire pressure receiver.

TIRE PRESSURE RECEIVER

The tire pressure receiver (1) is located next to the steering column assembly (2) and is shown with the lower instrument panel LH removed. The tire pressure receiver receives the air pressure signal transmitted by the transmitter in each wheel.

COMBINATION METER

The combination meter receives tire pressure status from the BCM using CAN communication. When a low tire pressure condition is sensed by the BCM, the low tire pressure warning lamp is activated.

TIRE PRESSURE WARNING CHECK CONNECTOR

The tire pressure warning check connector can be grounded in order to initiate self-diagnosis without a CONSULT-III. Refer to WT-53, "Self-Diagnosis (Without CONSULT-III)". The tire pressure warning check connector (1) is located behind the lower portion of the instrument panel LH.

System Components

1. Tire pressure receiver M70

2. Tire pressure warning check connector M62

3. Transmitters

4. Combination meter M24

5. BCM M16, M17, M18, M19

    Diagnosis system (BCM)
    CONSULT-III Function (BCM) CONSULT-III DIAGNOSTIC MODES CONSULT-III can display each diagnostic item using the diagnostic test modes shown following. DESCRIPTION During driving, the tire pres ...

    Other materials:

    ECU diagnosis
    BCM (BODY CONTROL MODULE) Reference Value VALUES ON THE DIAGNOSIS TOOL Terminal Layout Physical Values 1: Sedan only 2: With LH front window anti-pinch 3: With LH and RH front window anti-pinch 4: With Intelligent Key 5: Without Intelligen ...

    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 safe speed. NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn i ...

    DLC branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side) ...