Driver Information System: Overview Nissan Maxima A34

System Description

1. For the unified meter and A/C amp., the signal line (CAN-H, CAN-L and fuel level sensor) required for controlling the combination meter are integrated in the A/C auto amp.
2. In addition to providing input to the A/C auto amp., signals required for combination meter operation are received from various components either directly, or via CAN communication. These signals are sent to the combination meter using the TX and RX communication lines between the combination meter and unified meter and A/C amp. For information regarding A/C control, refer to «AIR CONDITIONER CONTROL»(ref-233653-S27404271912006052600000) in «AUTOMATIC AIR CONDITIONER»(ref-233653).
3. The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C amp., converted into data, and sent to the display control unit using CAN communication.
4. Other input signals are also sent to the ECM, TCM, display control unit and BCM using CAN communication.
5. CONSULT-II functions (self-diagnostic results and data monitor) are used to identify errors in the communication lines connected to the unified meter and A/C amp., and to monitor the status of signals received by the combination meter from the unified meter and A/C amp.

Scheme 731

Scheme 732

CAN Communication System Description

Refer to CAN COMMUNICATION.

Scheme 733

CONSULT-II BASIC OPERATION

Scheme 734

Scheme 735

Scheme 736

1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "METER A/C AMP" on "SELECT SYSTEM" screen. If "METER A/C AMP" is not indicated, go to «CONSULT-II Data Link Connector (DLC) Circuit»(ref-233642-S33893762202006052600000).
4. Select "SELF-DIAG RESULTS" or "DATA MONITOR".

Scheme 737

1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
2. Self-diagnosis results are displayed.

Scheme 738

Time indicates the condition of the self-diagnosis results judged by each signal input.

1. Normal: If the system is presently operating properly, but had a malfunction in the past, the time will indicate "1-63".
2. Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, "0" is indicated.

After the system returns to normal operating condition, every time the ignition switch is cycled (turned to OFF from ON), a value of one is added to the counter (i.e. "1" "-->2" "-->3"... "63"). When the ignition switch is cycled 64 times, the result of the self-diagnoses will be erased. If a malfunction is detected again, "0" will be indicated.

Scheme 739

1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Touch either "MAIN SIGNALS" or "SELECTION FROM MENU" on the "DATA MONITOR" screen. CONSULT-II MAIN SIGNALS & SELECTION FROM MENU SIGNALS MAIN SIGNALS Monitors main signals. SELECTION FROM MENU Selects and monitors individual signal.
3. Touch "START".
4. When "SELECTION FROM MENU" is selected, touch individual items to be monitored. When "MAIN SIGNALS" is selected, main items will be monitored.
5. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

With the ignition switch in the ON position, and the COMPASS switch is ON, the compass display will indicate the direction the vehicle is heading.

Vehicle direction is displayed as follows

Scheme 740

1. N: north
2. E: east
3. S: south
4. W: west

Refer to CAN COMMUNICATION.

CONSULT-II BASIC OPERATION PROCEDURE

Scheme 741

Scheme 742

Scheme 743

Scheme 744

1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, and turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000).
4. Touch "BUZZER" or "BCM".
5. Select "DATA MONITOR" or "SELF-DIAG RESULTS".

Operation Procedure

1. Touch "BUZZER" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch "ALL SIGNALS" or "SELECTION FROM MENU" on "DATA MONITOR" screen. CONSULT-II DATA MONITOR - ITEMS SPECIFICATION ALL SIGNALS Monitors main items. SELECTION FROM MENU Selects and monitors items.
4. Touch "START".
5. If "SELECTION FROM MENU" is selected, touch the item you desire to monitor. If "ALL SIGNALS" is selected, all control items are monitored.
6. During monitoring, touching "RECORD" can start recording the monitored item status.

1. Touch "BUZZER" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch the item to be tested, and check the operation.
4. During the operation check, touching "OFF" deactivates the operation.

1. Touch "BCM" on "SELECT TEST ITEM" screen.
2. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
3. Self-diagnostic results are displayed.

See also:
• SELF-DIAG RESULTS MODE