GM Service Manual Online
For 1990-2009 cars only

DTC

Definition

C1241

Magnasteer Malfunction

C1281

Steering Sensor Uncorrelated Malf (Refer to Antilock Brake System)

C1286

Steering Sensor Bias Malfunction (Refer to Antilock Brake System)

C1287

Steering Sensor Rate Malfunction (Refer to Antilock Brake System)

C1288

Steering Sensor Circuit Malfunction (Refer to Antilock Brake System)