Nissan Altima Owners Manual: Spark plugs
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped A spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance log shown in the “NISSAN Service and Maintenance Guide”. Do not service iridium-tipped spark plugs by cleaning or regapping.
● QR25DE: Always replace spark plugs with recommended ones.
● VQ35DE: Always replace spark plugs with recommended or equivalent ones
WARNING
Be sure the engine and ignition switch are off and that the parking brake is engaged securely.
CAUTION
Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs.
If replacement is required, see your NISSAN dealer for assistance.
Drive belt
QR25DE eng
1. Crankshaft pulley
2. Drive belt Automatic tensioner
3. Water pump pulley
4. Alternator
5. Air conditioner
WARNING
Be sure the ignition switch is placed in the
OFF or LOCK posit ...
Air cleaner
QR25DE
NOTE:
The air cleaner filter should not be cleaned
and reused.
Replace the air cleaner filter according to the
maintenance log shown in the “Warranty Information
and Maintenance Bookl ...
Other materials:
P1572 ASCD Brake switch
Description
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop
lamp switch is turned ON.
ECM detects the state of the brake pedal by those two types of input (ON/OFF
signal).
Refer to EC-1090, "System Diagram" for the ASCD function.
DTC Logic
DTC DETEC ...
Front grille
Removal and Installation
1. Front bumper fascia
2. Front grille
3. License plate bracket
4. Fog lamp finisher (if equipped)
5. Fog lamp (if equipped)
A. Clip C101
Removal
1. Remove the front fender protectors RH and LH. Refer to EXT-19, "Removal
and Installation".
2. Remove ...
P0500 VSS
Description
The vehicle speed signal is sent to the combination meter from the “ABS
actuator and electric unit (control
unit)” by CAN communication line. The combination meter then sends a signal to
the ECM by CAN communication
line.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P050 ...