2021 Silverado 1500 - Service Power Steering, Service ESC, No Cruise Control, No Rear backup guidelines

[Gman2500]

Hi,

I am having issues with a 2021 Silverado 1500 LT 5.3L. The issues I have are Service Power Steering Message, Service ESC Message, No Cruse Control, No rear backup guide lines (even when guide lines are turned on). 

 

Error Codes: 

C1512 Control Module Power Circuit Low Voltage

C0051 Steering Wheel Angle Sensor Signal / Clock Spring

U0415 Invalid Data Received from Electronic Brake Control Module

 

I purchased a new clock spring assuming the steering wheel angle sensor was integrated into it, but I am no longer certain that assumption is correct. I have searched extensively for documentation identifying the exact location of the steering wheel angle sensor on this model truck. On earlier versions it was a standalone sensor. I contacted the dealership, but they were unsure of its location and suggested it may be integrated into the steering column assembly, which I also have not been able to confirm. I have also checked the ground strap that is located behind the passenger wheel and it looks okay. 

 

I am assuming the issue is related to either the clock spring or angle sensor (if I can find out where its actually located). From what I have read the cruise control is disabled when you get ESC error, and I assume the no rear backup guide lines (even when the guidelines are turned on) is related to the truck not able to read what angle the steering wheel is at.

 

Any guidance on this would be greatly appreciated. Thank you

 

[taze]

This may not be the issue, but worth checking before you get too deep in the weeds, I'd think:

 

 

[newdude]

1 hour ago, Gman2500 said:

Hi,

I am having issues with a 2021 Silverado 1500 LT 5.3L. The issues I have are Service Power Steering Message, Service ESC Message, No Cruse Control, No rear backup guide lines (even when guide lines are turned on). 

 

Error Codes: 

C1512 Control Module Power Circuit Low Voltage

C0051 Steering Wheel Angle Sensor Signal / Clock Spring

U0415 Invalid Data Received from Electronic Brake Control Module

 

I purchased a new clock spring assuming the steering wheel angle sensor was integrated into it, but I am no longer certain that assumption is correct. I have searched extensively for documentation identifying the exact location of the steering wheel angle sensor on this model truck. On earlier versions it was a standalone sensor. I contacted the dealership, but they were unsure of its location and suggested it may be integrated into the steering column assembly, which I also have not been able to confirm. I have also checked the ground strap that is located behind the passenger wheel and it looks okay. 

 

I am assuming the issue is related to either the clock spring or angle sensor (if I can find out where its actually located). From what I have read the cruise control is disabled when you get ESC error, and I assume the no rear backup guide lines (even when the guidelines are turned on) is related to the truck not able to read what angle the steering wheel is at.

 

Any guidance on this would be greatly appreciated. Thank you

 

 

 

Steering angle sensor is integral to the steering gear.

 

What was the full code?  Should have a symptom byte at the end of it.  

 

DTC C0051 byte 4B

Steering Wheel Angle Sensor = Not Calibrated

DTC C0051 byte 58

Steering Wheel Angle Sensor = Internal Malfunction

 

I would double check the ground straps as @taze linked to.  Very common of them to go bad and cause steering issues.  

[Gman2500]

24 minutes ago, newdude said:

 

 

Steering angle sensor is integral to the steering gear.

 

What was the full code?  Should have a symptom byte at the end of it.  

 

DTC C0051 byte 4B

Steering Wheel Angle Sensor = Not Calibrated

DTC C0051 byte 58

Steering Wheel Angle Sensor = Internal Malfunction

 

I would double check the ground straps as @taze linked to.  Very common of them to go bad and cause steering issues.  

 

Here are the full codes with byte

Bytes:

C1512 Byte 03

C0051 Byte 58

U0415 Byte 00

[newdude]

2 minutes ago, Gman2500 said:

 

Here are the full codes with byte

Bytes:

C1512 Byte 03

C0051 Byte 58

U0415 Byte 00

 

 

So...

 

I would focus on the first two.  The U0415 likely set because it can't see the steering angle, and its just a loss of communications code for the missing data.

 

The C0051 byte 58 sounds like the main culprit as that is an internal malfunction code for the steering angle sensor

 

Very little testing for that failure other than make sure the connector is installed and seated properly into the power steering control module.  If its good, and everything is clean on the terminals, then its going to need a steering rack. 

 

Before throwing a rack at it, again, just make sure those ground straps are good.  That video in that linked thread like 3rd or 4th post in is a fantastic view of where they are.  

[Gman2500]

28 minutes ago, newdude said:

 

 

So...

 

I would focus on the first two.  The U0415 likely set because it can't see the steering angle, and its just a loss of communications code for the missing data.

 

The C0051 byte 58 sounds like the main culprit as that is an internal malfunction code for the steering angle sensor

 

Very little testing for that failure other than make sure the connector is installed and seated properly into the power steering control module.  If its good, and everything is clean on the terminals, then its going to need a steering rack. 

 

Before throwing a rack at it, again, just make sure those ground straps are good.  That video in that linked thread like 3rd or 4th post in is a fantastic view of where they are.  

 

Sounds great, I greatly appreciate your help with this.

 

I just checked the grounds again that South Main Auto showed on his video. Both of them I checked looked good. (Passanger side head to fire wall, and one behind front right wheel) I also checked voltage drop between negative post and frame and don't have any voltage drop.

 

I will check the connection to the power steering control module. If that looks okay then ill throw a rack on it to see if it solves it. 

 

Thanks again for your help