Cayman 2006 Chassis Information — Section 10 • 239
Clearing Fault Codes and/or System Confi guration:
1. With the ignition off, press and hold the TEST button.
2. Turn the ignition key to on while pressing the TEST button.
3. Wait two seconds and release the TEST button.
4. Press and release the brake pedal.
5. The ECU is reconfi gured to match connected components and to clear fault codes.
6. Repeat the “Retrieving Fault Codes” procedure to verify that fault codes are cleared.
FRONT AXLE
While driving the motorhome, be aware of any changes in the feel of steering and have the system checked
when noting apparent differences. It is normal to hear some hydraulic noise from the steering, especially when
the steering is at maximum, or while turning the wheel when the motorhome is parked. Investigate any unusual
or loud noises that occur. Begin by checking the level of the hydraulic fl uid. Traveling at slow speeds over rough
terrain may cause a “clunking” noise to emanate from the steering column. However, if noise occurs on smooth
terrain, while sharply turning back and forth, the steering column should be inspected and repaired as necessary.
Shimmy and looseness should be checked and corrected as soon as possible. If looseness is felt in the steering,
the steering linkages can be observed while someone turns the steering wheel left and right. Watch the linkages
for evident play or uneven interaction between components to help pinpoint a problem. Wheel bearings should
be cleaned and repacked with high temperature disc brake grease every 30,000 miles. Have the steering system
checked for damage after a severe impact, such as striking large potholes or curbs, and front-end collisions.
Observe the alignment of the steering wheel; a change in the alignment may indicate damage to the steering
components or suspension.
Maintenance for the system entails adequate lubrication. Use only a hand operated grease gun on the fi ttings.
Grease fi ttings for the steering system are found on the both ends of the drag link (the bar connecting the steering
gear to the axle), and on the steering drive shaft located between the steering wheel and steering gear. The
correct wheel alignment promotes longer tire wear and ease of handling while minimizing the strain on the
steering system and the axle components. Use NLGI #2 Lithium soap base lubricant for all steering linkage
and brake components.
Alignment
Camber:
Camber (as shown) is vertical tilt of
wheel as viewed from the front of the
motorhome. This is machined into the axle
when manufactured and is not adjustable.
• Positive camber is an outward tilt of
the wheel at the top.
• Negative camber is an inward tilt of the
wheel at the top.
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