code 1283 and Tech 2

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Feb 6, 2008 | 08:43 AM

aggie_corvette

Thread Starter

Racer

Joined: Nov 2001

Posts: 440

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From: Pearland TX

code 1283 and Tech 2

Had my steering disconnected and the wheel got turned, but i don't know how many times or which direction. Now i have the 1283 and 1288 codes.

Can a Tech 2 zero out the steering angle?

Is there another way of zeroing out the steering?

I could take it apart but i don't know which way/how much to turn.

TIA.

Feb 6, 2008 | 05:12 PM

Bill Dearborn

Tech Contributor

Joined: Oct 1999

Posts: 41,032

Likes: 9,789

From: Charlotte, NC (formerly Endicott, NY)

First disconnect the steering shaft from the rack. There is a light blue wire that runs from Pin 6 of the SWPS to Pin 23 of the EBTCM. You need to find a way to check the voltage on that wire without disconnecting it. Then use a DMM with a 10 megohm input impedance to measure the voltage on that line. Once you have a reading turn the wheel until you get a reading around 2.5 Volts DC. This should get the shaft back in proper orientation.

Bill

Feb 6, 2008 | 05:25 PM

BlackZ06

Safety Car

Joined: Aug 2000

Posts: 4,933

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From: San Rafael CA

Bill,

Should he disconnect the SIR "clock spring" before resetting the wheel ??

Feb 6, 2008 | 06:50 PM

Bill Dearborn

Tech Contributor

Joined: Oct 1999

Posts: 41,032

Likes: 9,789

From: Charlotte, NC (formerly Endicott, NY)

Quote:

Originally Posted by BlackZ06

Bill,

Should he disconnect the SIR "clock spring" before resetting the wheel ??

I assume you are talking about the Inflatable Restraint Steering Wheel Module Coil which is located in the cockpit? I had overlooked that issue and agree he should disconnect the coil. Service Manuals specifically warn about damage to the coil if the steering shaft isn't locked in the straight ahead position before disconnecting if from the rack. This brings up the point that he may have already caused the coil to go off center or be damaged if the wheel was turned before he put the car back together, although I would suspect that he would have an air bag warning on the dash if something did happen to the coil. Before playing with the SIR system he should definitely read the appropriate sections in the manual on how to disconnect the coil from the shaft and then recenter it after the steering shaft is centered. Just pulling the system fuse and the coil electrical connector is not going to work.

Bill

Feb 7, 2008 | 12:23 AM

99FewteRC5

Burning Brakes

Joined: Sep 2005

Posts: 1,208

Likes: 2

From: Long Beach CA

If you have a Tech 2, you could read the sensor voltage with it. Set it a 2.5 volts then raise the frt tires off the ground and disconnect the steering shaft. Turn the wheels to to point straight ahead and reconnect the steering shaft. That should get you back in phase without worrying about damaging the SIR coil.