DTC C0710
Diagnostic Instructions
DTC Descriptor
| DTC C0710 71: Steering Position Signal Invalid
Data |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
CAN Bus High Serial Data
|
U0073, U0100, U0101, U0125, U0126, U0140
|
U0073, U0100, U0101, U0125, U0126, U0140
|
U0073, U0100, U0101, U0125, U0126, U0140
|
C0710 5A, C0710 71
|
CAN Bus Low Serial Data
|
U0073, U0100, U0101, U0125, U0126, U0140
|
U0073, U0100, U0101, U0125, U0126, U0140
|
U0073, U0100, U0101, U0125, U0126, U0140
|
C0710 5A, C0710 71
|
|
| |
Circuit/System Description
The power steering control module monitors the steering angle
sensor signal via the GMLAN serial data circuit. The power steering
control module utilizes this signal to determine a center point for
Active Return and Soft End Stops. Upon detecting an invalid
steering angle sensor signal, the power steering control module
will disable Active Return and Soft End Stops, then set a DTC.
Note: To most drivers the
loss of Active Return and Soft End Stops may not be noticeable as
there is no visual indicator activated on the instrument cluster or
driver information display.
There is no diagnosable cause with the power steering
control module when this DTC is set, DO NOT REPLACE POWER STEERING
CONTROL MODULE OR STEERING GEAR DUE TO THIS DTC.
For diagnosis of an invalid steering angle sensor signal,
refer to Antilock Brake System Diagnostic Information and
Procedures.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The power steering control module has received on of the
following serial data messages listed below from the external
steering angle sensor.
| • |
Steering angle range is
exceeded |
| • |
Steering angle sensor is not
calibrated |
| • |
Steering angle sensor is
initialized |
| • |
Steering angle sensor message:
Roll Counter is INVALID |
| • |
Steering angle sensor message:
Present Bit is FALSE (not common) |
| • |
Steering angle sensor message:
Error Flag is set to TRUE |
Action Taken When the DTC Sets
| • |
The electronic brake control
module disables the stability control for the duration of the
ignition cycle. |
| • |
Active Return and Software End
Stops are deactivated. |
Conditions for Clearing the DTC
| • |
A current DTC clears when the
diagnostic runs and passes. |
| • |
When the steering angle sensor
signal becomes valid, the fault will set to History and can be
cleared with a scan tool. |
Diagnostic Aids
The car should not pull in either direction causing the steering
wheel to be OFF center while driving straight ahead on a level
surface.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
ABS Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
| 2. |
With a scan tool, verify that
DTC C0710 71 is not set. |
⇒ If DTC C0710 71 is
set
Refer to
DTC C0460 or C0710 in Antilock Brake System Diagnostic
Information and Procedures. ⇓
If DTC C0710 71 is not set
|
