Cause
Damaged wiring in the steering column
Damage to the looms inside or around the steering column — distinct from the clockspring, though the two are often confused and sometimes both are involved.
The column is unusually crowded for its size. Stalk switches, the horn, wheel controls, the steering angle sensor, the ignition switch or start button, the column lock and the airbag circuit all pass through or terminate there. So damage in one place takes several unrelated things with it, and a group of column-area failures is normally one loom rather than several parts.
Three mechanisms account for most of it. Adjustment: a column that rakes and reaches moves its wiring every time somebody changes position, and a loom routed slightly wrong after previous work chafes against the mechanism. Prior repair: airbags, clocksprings, columns, wheels and ignition switches are all removed for other jobs, and a loom pinched as the shrouds go back on is an ordinary outcome. And theft or attempted theft, which characteristically damages exactly this area.
The distinguishing test against a clockspring is free and worth knowing. A clockspring fault changes with steering wheel position, because the ribbon flexes as the wheel turns. Column wiring damage more often changes with column adjustment, or with vibration, or not at all.
One caution: the airbag circuit runs here. Its wiring is deliberately distinctive — commonly yellow, with shorting connectors — because it operates a pyrotechnic device, and it is not something to probe or repair casually.
Typically a moderate job.
Some of these codes mean you should stop driving
1 of the 16 codes this can cause indicate a fault where continuing to drive risks damage or is unsafe. Which one you have matters more than the cause does — read the code's own page before deciding.
Codes this can cause (16)
Codes where this is a likely explanation first, rather than merely a possible one.
- U0212 Lost Communication With Steering Column Control Module Likely for this code High
- U0229 Lost Communication With Heated Steering Wheel Module Likely for this code Low
- U0236 Lost Communication With Column Lock Module Likely for this code High
- U0428 Invalid Data Received From Steering Angle Sensor Module Likely for this code High
- U0429 Invalid Data Received From Steering Column Control Module Likely for this code High
- U0537 Invalid Data Received From Column Lock Module Likely for this code Stop driving High
- P0954 Auto Shift Manual Control Circuit Intermittent Low
- U052A Invalid Data Received From Heated Steering Wheel Module Low
- U300A Ignition Switch Moderate
- U300B Ignition Input Accessory/On/Start Moderate
- U300C Ignition Input Off/On/Start Moderate
- U300D Ignition Input On/Start Moderate
- U300E Ignition Input On Moderate
- U300F Ignition Input Accessory Moderate
- U3010 Ignition Input Start Moderate
- U3011 Ignition Input Off Moderate
Information, not instruction
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