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C0450-5A
steering assist control actuator circuit
2010 Grand Sport
My car Service Soon message came pin the other day.
I thought my steering felt hard.
So is this error code the reason and what exactly does it mean?
Last edited by Elijah71; Jun 30, 2017 at 07:46 PM.
Check the connector at the steering control actuator. It may be loose, or corroded if dirt got in around that area. Unplug, check the connector pins, spray some contact cleaner on the pin connectors, plug back in and see if the issue goes away after a few start cycles.
It's worth a try. It may work
Thanks for theses posts as I'm always interested in hearing input and learning theses things.
where can i obtain theses colored schematics?
I'll also be going to stealership as i still have my full coverage warranty.
Thanks for theses posts as I'm always interested in hearing input and learning theses things.
where can i obtain theses colored schematics?
I'll also be going to stealership as i still have my full coverage warranty.
The ones I have are for a 2006/2007 C6. Although most of the C6 platform has the same electrical system, there are some minor differences from year to year due to addition of radio controls on steering wheel, LS2 to LS3 and LS9. Some connector pins may be slightly different on some years compared to the 2006/2007 platform, but I'm not sure because I have not seen the newer schematics to compare.
If you want a copy of the ones I have (the complete set) PM me your e-mail address and I'll send them to you in PDF format.
Can anyone speculate on the issue. Does this failure only affect what I'm feeling right now that the steering is a little harder, or is it possible that this can lead to more of a full failure issue?
Shop is closed till Monday and i want to go drive right now
So lady year 2018 they replaced the EBC, today the same error code cansee back up.
Back to the shop it goes tomorrow.
Still have my Extended warranty which lasts until August 2021.
Uday but Im getting pissed.
Ive only put 2k miles on since beginning of 2018 and 5k since 2017.
Check the connector at the steering control actuator. It may be loose, or corroded if dirt got in around that area. Unplug, check the connector pins, spray some contact cleaner on the pin connectors, plug back in and see if the issue goes away after a few start cycles.
It's worth a try. It may work
Good luck
Okay, this time when I unplugged the harness then plugged it back in its working. Thanks.
So glad I don't have to drop car off.
Even having the warranty, I don't want the hassle.
Here is the electrical schematic for the electronic Steering control circuit.
You may also want to check the fuses.
Good Luck
Does anyone know what voltage should come out of the actuator supply feed to the steering rack? My rack shows about 3 ohms, wires look good, but still getting the C0450-5a code?
Does anyone know what voltage should come out of the actuator supply feed to the steering rack? My rack shows about 3 ohms, wires look good, but still getting the C0450-5a code?
Are you taking about volts or resistance ??…feed should be 12 volts…if low voltage check for open, short to ground or high resistance…if all good most likely bad EBCM.
Are you taking about volts or resistance ??…feed should be 12 volts…if low voltage check for open, short to ground or high resistance…if all good most likely bad EBCM.
Good question, still learning, it is my understanding its volts coming from the EBCU to the rack and then checking the rack unattached to the EBCU ohms, so based on your response, the EBCU feed should be similar voltage as the battery at 12v?
Good question, still learning, it is my understanding its volts coming from the EBCU to the rack and then checking the rack unattached to the EBCU ohms, so based on your response, the EBCU feed should be similar voltage as the battery at 12v?
Suggest you learn basic electrical theory first and once you have a strong foundation you can build on this…many good books and YouTube videos on this subject.
Are you taking about volts or resistance ??…feed should be 12 volts…if low voltage check for open, short to ground or high resistance…if all good most likely bad EBCM.
So, checked with ignition on, no voltage to the white VAR wire, the assumption is the EBCM is toast, I then took the harness apart, verified there is power, jumped the power to the white VAR and have power in the pigtail, is this a simplistic approach to confirm, or it wouldn't matter if fired or not, it would still have power?
Error code C0450-5A
