Nissan Altima 2007-2012 Service Manual: Diagnosis system (meter)
Diagnosis Description
SELF-DIAGNOSIS MODE
• Odo/trip meter and information display segment operation can be checked in self-diagnosis mode.
• Meters/gauges can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1. Turn the ignition switch OFF.
2. While pushing the odo/trip meter switch, turn the ignition switch ON again.
3. Push the odo/trip meter switch at least 3 times within 7 seconds after the ignition switch is turned ON.
4. The unified meter control unit is turned to self-diagnosis mode.
• All the segments on the odo/trip meter illuminate.
• Dots in all segments of information display LCD (1) flash alternately.
NOTE: If any of the segments are not displayed, replace the combination meter. Refer to MWI-176, "Removal and Installation".
5. Push the odo/trip meter switch. Each meter/gauge should indicate as shown in the figure.
CONSULT-III Function (METER/M&A)
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAG RESULTS
Display Item List
Refer to MWI-95, "DTC Index".
DATA MONITOR
Display Item List
NOTE: Some items are not available due to vehicle specification.
*: The monitor will indicate “OFF” even though the brake warning lamp is on if either of the following conditions exist.
• The parking brake is engaged
• The brake fluid level is low
Compass
Description
DESCRIPTION
With the ignition switch in the ON position, and the mode (N) switch
ON, the compass display will indicate the direction the vehicle is
heading.
Vehicle direction is dis ...
Other materials:
P0451 evap control system pressure
sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously cond ...
Lock-up and select control system
System Diagram
System Description
• The torque converter clutch piston in the torque converter is engaged to
eliminate torque converter slip to
increase power transmission efficiency.
• The torque converter clutch control valve operation is controlled by the
torque converter clutch ...
Additional service when replacing
control unit
Description
MEMORY RESET PROCEDURE
1. Please observe the following instructions at confirming the sunroof
operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within
5 seconds after the sunroof
stops. (to wipe-out the memory of lid position and operat ...