GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 SLS 🢒 Steering 🢒 Steering Wheel and Column 🢒 DTC B2880

Circuit Description

The driver position module (DPM) determines the position of the steering column based on inputs received from position sensor located in the tilt driver. The DPM supplies a 5-volt reference and a ground signal to the sensor and monitors the column position via a steering column sensor signal circuit.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B2880 Tilt Position Sensor

Conditions for Running the DTC

DTC B1327 is not set as a current.

Conditions for Setting the DTC

This DTC will set as current when the voltage is below 0.25 volt or greater than 4.75 volts for 2 seconds on the tilt driver signal circuit.

Action Taken When the DTC Sets

The DPM will not allow the affected motor to work during memory recall and/or easy exit operations. However, the motor will still operate for manual switch positioning.

Conditions for Clearing the DTC

This DTC will clear from current status when the voltage is greater than 0.25 or less than 4.75 volts for 2 seconds.

DTC B2880

Step

Action

Value(s)

Yes

No

Schematic Reference: Tilt/Telescoping Steering Column Schematics

Connector End View Reference: Component Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

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Go to Step 2

Go to Diagnostic System Check - Vehicle

2
  1. Turn ON the ignition, with the engine OFF.
  2. With a DMM, detect the tilt position signal input circuit to obtain the voltage on it.

Is the voltage less then the specified value?

4.75V

Go to Step 8

Go to Step 3

3
  1. Turn OFF the ignition.
  2. Disconnect the driver harness connector from the tilt/telescoping DPM.
  3. Connect a 3-amp fused jumper wire between the tilt position circuit of the DPM and a good ground.
  4. Turn ON the ignition, with the engine OFF.
  5. With a DMM, observe the voltage on the tilt position signal input circuit.

Is the voltage less then the specified value?

0.12V

Go to Step 4

Go to Step 6

4

Inspect for poor connections at the harness connector of the tilt actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs.

Did you find and correct the condition?

--

Go to Step 7

Go to Step 5

5

Replace the tilt actuator. Refer to Tilt Motor Replacement.

Did you complete the replacement?

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Go to Step 7

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6

Important: Perform the set up procedure for the driver position module (DPM).

Replace the DPM. Refer to Control Module References.

Did you complete the replacement?

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Go to Step 7

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7

Perform the programming procedure for the driver position module (DPM). Refer to Telescoping Steering Column Calibration.

Did you complete the operations?

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Go to Step 8

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8
  1. Clear any DTCs with a scan tool.
  2. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text.

    3. Does DTC B2880 reset?

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Go to Step 2

System OK