Service Notice And Precautions For Power Steering System

Check the following item when performing the trouble diagnosis.
- Check if air pressure and size of tires are proper, the specified part is used for the steering wheel is genuine part.
- Check if the connection of power steering oil pump assembly and steering gear assembly is proper (there is not looseness of mounting bolts, damage of rods, boots or sealants, and leakage of fluid, etc.).
- Check if the wheel alignment is adjusted properly.
- Check if there is any damage or modification to suspension or body resulting in increased weight or altered ground clearance.
- Check if installation conditions of each link and suspension are proper.
- Check if the battery voltage is proper.
- Check connection conditions of each connector are proper.
- Check that NISSAN genuine power steering fluid (E-PSF) is used. If power steering fluid other than genuine fluid is used, steering may become extremely hard. Check that the fluid level is within the level gauge.
- After the removal/installation of the power steering oil pump assembly or the steering gear assembly, bleed the power steering system via "Work Support" of CONSULT. If CONSULT is not used for bleeding the system, the mixing of air into the system causes malfunction and the performance degradation in steering assist.
- A machine sound may be heard from the engine room when the steering wheel is operated. This is an operating sound in normal condition of system and the sound is not.
- Before connecting or disconnecting the power steering control module harness connector, turn ignition switch "OFF" and disconnect 12V battery ground cable. Because battery voltage is applied to power steering control module even if ignition switch is turned "OFF".