GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 DeVille 🢒 DTC 🢒 DTC B2175

Circuit Description

The steering column module receives ground inputs from contacts inside the tilt/telescoping switch. The steering column module then supplies battery voltage to the tilt motor UP or DOWN circuit, or to the telescope motor IN or OUT circuit, depending on which direction of movement is requested. Both motors are reversible and the circuits are simply reversed to accomplish movement in opposite directions.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B2175 Tilt/Telescope Switch

Conditions for Running the DTC

The steering column module is awake.

Conditions for Setting the DTC

This DTC will set as current when the steering column module detects 2 simultaneous tilt/telescoping switch inputs for more than 2 seconds.

Action Taken When the DTC Sets

The steering column module no longer moves the steering column in the direction of the invalid tilt/telescoping switch inputs.

Conditions for Clearing the DTC

This DTC will clear from current status when the steering column module no longer detects 2 simultaneous tilt/telescoping switch inputs for more than 2 seconds.

Diagnostic Aids

An intermittently stuck switch can cause this DTC to set. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Step

Action

Yes

No

Schematic Reference: Tilt/Telescoping Steering Column Schematics

Connector End View Reference: Steering Wheel and Column Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2
  1. Turn ON the ignition, with the engine OFF.
  2. Using the scan tool, observe the Current Diagnostic Trouble Code(s) list in the DTC Information list.

Is DTC B2175 displayed as current?

Go to Step 3

Go to Diagnostic Aids

3
  1. Turn OFF the ignition.
  2. Disconnect the tilt/telescoping switch harness connector.
  3. Turn ON the ignition, with the engine OFF.
  4. Using the scan tool, observe the Current DTC(s) list in the DTC Information list.

Is DTC B2175 displayed as current?

Go to Step 4

Go to Step 5

4

Inspect for poor connections at the harness connector of the tilt/telescoping steering column switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 6

5

Replace the tilt/telescoping steering column switch. Refer to Telescope Actuator Switch Replacement .

Did you complete the replacement?

Go to Step 7

--

6

Important:: Perform the set up procedure for the steering column module.

Replace the steering column module. Refer to Steering Column Control Module Replacement .

Did you complete the replacement?

Go to Step 7

--

7

Perform the Steering Column Control Module Programming. Refer to Steering Column Control Module Programming .

Did you complete the action?

Go to Step 8

--

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

Does DTC 2175 reset?

Go to Step 2

System OK