GM Service Manual Online
For 1990-2009 cars only

Object Number: 106568  Size: MF
Tilt Wheel/Column Components
Cell 49 - Power, Ground, Switch, Sensors and Motors
Handling ESD Sensitive Parts Notice

Circuit Description

The steering column tilt/telescoping module (TTM) receives a input from the tilt/telescope switch when the switch is pressed . The TTM recognizes this input and moves the steering column in the appropriate direction.

Conditions for Setting the DTC

When the TTM detects two simultaneous inputs for more than two seconds, the module considers the inputs invalid and sets the DTC.

Action Taken When the DTC Sets

    • The TTM no longer moves the steering column in the direction of the invalid inputs.
    • The TTM continues to respond to valid inputs from the other manual switches.

Conditions for Clearing the DTC

    • The TTM determines that the tilt/telescope switch is no longer active.
    • Use the On-Boards clearing DTCs feature.
    • Use a scan tool.

Test Description

The numbers below refer to the step numbers on the diagnostic table:

  1. Perform the Tilt/Telescoping Steering Column Diagnostic System Check before continuing with the diagnosis of this DTC.

  2. Determines whether the failure is in the steering column tilt/telescoping module (TTM) or the tilt/telescope switch.

  3. Clear all DTCs after the repair procedure is complete.

DTC B2175 -- Tilt & Telescope Module Manual Switch Failure

Step

Action

Value(s)

Yes

No

1

Was the Tilt/Telescoping Steering Column Diagnostic System Check performed?

--

Go to Step 2

Go to Tilt/Telescoping Steering Column Diagnostic System Check

2

  1. Turn OFF the ignition switch.
  2. Connect a scan tool to the data link connector (DLC).
  3. Disconnect the steering column tilt/telescoping module connector C4.
  4. Using the scan tool, clear all DTCs.

Does DTC B2175 reset?

--

Go to Step 3

Go to Step 4

3

  1. Check the steering column tilt/telescoping module connector C4 for poor terminal contact.
  2. If OK, replace the steering column tilt/telescoping module. Refer to Tilt/Telescoping Module Replacement .

Is the replacement complete?

--

Go to Step 5

--

4

Replace the tilt/telescope switch.

Is the replacement complete?

--

Go to Step 5

--

5

  1. Turn OFF the ignition switch.
  2. Reconnect or install any connectors or components that were disconnected or removed.
  3. Turn ON the ignition switch.
  4. Clear any DTCs.
  5. Repeat the Diagnostic System Check. Refer to Tilt/Telescoping Steering Column Diagnostic System Check .

Is the Diagnostic System Check complete?

--

System OK

--