GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Vibe - AWD 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 DTC C1516 or C1526

Circuit Description

These DTCs do not indicate a malfunction. The power steering control module outputs these DTCs when it determines that the rotation angle sensor value initialization and torque sensor zero point calibration are incomplete.

DTC Descriptors

This diagnostic procedure supports the following DTC:

    • DTC C1516 Torque Sensor Zero Point Adjustment Incomplete
    • DTC C1526 Rotation Angle Sensor Initialization Incomplete

Conditions for Running the DTC

This DTC shall run when key is inserted into key cylinder.

Conditions for Setting the DTC

C1516

The torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.

C1526

The rotation angle sensor value initialization is incomplete due to the steering wheel being touched during initialization.

Action Taken When the DTC Sets
    • Power assist stops.
    • The P/S warning indicator illuminates.

Conditions for Clearing the DTC

The DTC will clear when conditions for setting the DTC have been repaired.

Step

Action

Yes

No

Schematic Reference: Power Steering Schematics

Connector End View Reference: Component Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2
  1. Perform the rotation angle sensor initialization and torque sensor zero point calibration. Refer to Steering Angle Sensor Initialization and Steering Shaft Torque Sensor Zero Point Calibration .
  2. Use the scan tool to verify if DTC C1515 and/or C1525 has been reset.

Did DTC C1515 and/or C1525 clear?

Go to Step 8

Go to Step 3

3
  1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point two more times. Refer to Steering Angle Sensor Initialization and Steering Shaft Torque Sensor Zero Point Calibration .
  2. Use the scan tool to verify if DTC C1515 and/or C1525 has been reset.

Did DTC C1515 and/or C1525 clear?

Go to Step 8

Go to Step 4

4

Replace the power steering control module. Refer to Control Module References for power steering control module replacement, setup and programming.

Did you complete the replacement?

Go to Step 5

--

5
  1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point. Refer to Steering Angle Sensor Initialization and Steering Shaft Torque Sensor Zero Point Calibration .
  2. Use the scan tool to verify if DTC C1515 and/or C1525 has been reset.

Did DTC C1515 and/or C1525 clear?

Go to Step 8

Go to Step 6

6

Replace the steering column. Refer to Steering Column Replacement .

Did you complete the replacement?

Go to Step 7

--

7
  1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point. Refer to Steering Angle Sensor Initialization and Steering Shaft Torque Sensor Zero Point Calibration .
  2. Use the scan tool to verify if DTC C1515 and/or C1525 has been reset.

Did DTC C1515 and/or C1525 clear?

Go to Step 8

--

8
  1. Use the scan tool in order to clear the DTC.
  2. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK