Checking Fluid Leakage

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

Check that hydraulic piping lines for improper attachment and for leaks, cracks, damage, loose connections, chafing or deterioration.

Run engine until fluid temperature reaches 50 to 80°C (122 to 176°F) in reservoir tank. Keep engine speed idle.
Turn steering wheel right-to-left several times.
Hold steering wheel at each "lock" position for five seconds to check fluid leakage.
CAUTION: Do not hold steering wheel in a locked position for more than 10 seconds. (There is the possibility that oil pump may be damaged.)

Fig 1: Checking Hydraulic Piping Lines For Fluid Leakage
Courtesy of NISSAN MOTOR CO., U.S.A.
If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten connector as this can damage O-ring, washer and connector.
If fluid leakage at the connectors is noticed, then loosen the flare nut and retighten it.
Check steering gear boots for accumulation of fluid indicating a from steering gear.