B2862

CIRCUIT DESCRIPTION
The steering column Tilt/Telescoping Module (TTM) receives inputs from the telescope position sensor during memory recall, memory set, and easy exit functions. The potentiometer in the telescope position sensor varies in resistance as the motor moves the steering column in or out. The TTM receives a variable voltage input depending on the resistance of the potentiometer. During memory set, the TTM records the voltage across the telescope position potentiometer. During memory recall, the TTM moves the telescope motor until the voltage across the potentiometer matches the voltages stored in memory. For the easy exit function, the TTM moves the telescope motor until the voltage matches what the TTM has recorded in memory for the easy exit. During normal operation, the telescope position sensors are checked against out-of-range limits.

CONDITIONS FOR SETTING THE DTC
- The TTM sets the DTC B2862 any time it detects the telescope position sensor input voltage is out-of-range.
- DTC B2862 sets only if DTC TTM B1982 or DTC TTM B1983 is not current.

ACTION TAKEN WHEN THE DTC SETS
- When DTC B2862is set as current, the steering column Tilt/Telescoping Module (TTM) disables the telescope motor during memory recall or easy exit operations. The telescope motor remains enabled for manual positioning.

CONDITIONS FOR CLEARING THE DTC
- The TTM detects that the telescope position sensor input is within the valid voltage range.
- 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 telescope position sensor.
3. Clear all DTCs after the repair procedure is complete.





DTC B2862 TELESCOPE POSITION SENSOR LOW