DIAGNOSIS AND TESTING - STEERING DIAGNOSIS CHARTS
Note. There are two diagnosis charts following that cover PERFORMANCE ISSUES and NOISE, VIBRATION AND HARSHNESS (NVH) ISSUES.
Note. For any performance issues, check for DTCs related to the steering system. Verify the correct software and calibration files are loaded in the Electric Power Steering (EPS) system.
DIAGNOSIS AND TESTING - STEERING COLUMN
Note. For Diagnosis and Testing, refer to DIAGNOSIS AND TESTING .
If the vehicle is involved in a front end collision or the air bag has deployed or both, the steering column must be replaced.
DIAGNOSIS AND TESTING - TIE ROD
Tie rod free-play can be measured using the following hand methods
Scheme 1
Scheme 2
- Raise and support the vehicle. Refer to «HOISTING, STANDARD PROCEDURE»(ref-646211-S00664313032014072800000) .
- Remove the front wheels. Refer to «REMOVAL»(ref-646212-S02251014372014072800000) .
- Install two standard wheel mounting nuts, flat side to rotor, diagonally opposite to each on the rotor.
- Attach a magnetic dial indicator (2) to the inside or outside of the brake rotor, then align the dial indicator's contact pointer (1) with the direction of the stud axis and touch the outer tie rod.
- Zero the dial indicator. (3) NOTE: When checking free-play, DO NOT rotate the tie rod. Just because a tie rod rotates easily does not mean that it is necessarily faulty. Using more than light hand pressure will result in a false reading.
- Grasp the outer tie rod near the ball stud and attempt to move the tie rod straight up and down using light hand pressure. (Less than 10 lbs. of force.)
- Measure and record any tie rod free-play movement.
- Remove the magnetic dial indicator.
- Remove the standard wheel mounting nuts from the two studs.
If the free-play in the tie rod exceeds 0.05 mm (.002 in.), replace the outer tie rod. Refer to TIE ROD, STEERING, REMOVAL . If the free-play is less than 0.05 mm (.002 in.) at the outer tie rod check the inner tie rod for free-play. Refer to the following procedure.