#04-02-35-009A: Noise in Steering Column, Lack of Power Steering Assist, DTCs C0460 and C0545, Steering Wheel Moves Slightly By Itself (Replace Steering Column) - (Nov 8, 2007)
|Subject:||Noise in Steering Column, Lack of Power Steering Assist, DTCs C0460 and C0545, Steering Wheel Moves Slightly By Itself (Replace Steering Column)|
|Models:||2004-2005 Chevrolet Malibu|
This bulletin is being revised to add the 2005 Malibu, the 2005 Pontiac G6 and update the steering column part number. Please discard Corporate Bulletin Number 04-02-35-009 (Section 02 -- Steering Wheel and Column).
Some customers may comment on any of the following concerns:
| • ||A rattle or clunk noise from the left lower instrument panel or foot well area.|
| • ||With the engine running and the vehicle not moving, the steering wheel may move a few degrees off center, left and right, by itself, without driver input.|
| • ||With the vehicle in motion, the driver may comment about a steering wheel vibration that feels like a wheel out of balance. This condition does not impair the ability of the driver to control the vehicle.|
| • ||An intermittent lack of power steering assist.|
Technicians may find the following diagnostic trouble codes:
| • ||Diagnostic Trouble Code C0460 Symptom 00 (Steering Position Sensor)|
| • ||Diagnostic Trouble Code C0545 Symptom 00 (Steering Wheel Torque Input Sensor)|
These conditions may be caused by excessive clearance between the assist gears or by a failure of the torque sensor in the steering column.
Perform the following check as an aid in diagnosing a steering column noise. With the engine running and the vehicle not moving, turn the steering wheel rapidly back and forth an inch or two off center and listen for a click or rattle noise inside the steering column. If these noises are present, it may indicate excessive clearance between the gears inside the steering column.
Technicians are to install a new steering column kit, P/N 15926870, to correct the conditions listed above. Refer to the Steering Column Replacement procedure in the Steering section of SI.
Column Assembly, Steering