Just pulled the following two codes from the DIC:

A6 SCM B 2605 H
A6 SCM B 2860 H

Wondered if someone could tell me what they mean? Thanks.

 

DTC B2605 Seat Front Vert. Position Sensor Failure
DTC B2860 Telescoping Column Position Sensor Failure

This is for a '99, i'm pretty sure they're all the same though

 

Thanks! Any idea what it means for these sensors to fail? The seat and telescoping steering seem to be working OK.

 

Those are history codes. Not current. :cheers:

Bob

 

DTC B2605-B2607

Circuit Description
The seat adjuster motors are equipped with position sensors. The position sensors are supplied with a common 5 volt reference circuit and low reference circuit from the memory seat module. The memory seat module receives a signal voltage from each position sensor whenever a memory seat module output function is active.

Conditions for Running the DTC
The memory seat module detects a switch signal active or a memory function request.

Conditions for Setting the DTC
The memory seat module detects the position sensor signal circuit under 0.1 volt or over 4.78 volts.
The condition must be present for 2 seconds.
Action Taken When the DTC Sets
A history DTC is stored in the memory seat module.
Memory seat module DTCs can only be set as history codes even if the malfunction is current.
The memory functions of the adjuster motor for which the DTC has set will be disabled for as long as the fault is current.
Conditions for Clearing the DTC
Memory seat module DTCs may be cleared only by using a scan tool or the IPC clearing DTCs feature.

Diagnostic Aids
Operate the adjuster motor through the full range of adjustment while monitoring the position sensor parameter on the scan tool. If the problem is intermittent refer to Testing for Intermittent and Poor Connections in Wiring Systems.

Test Description
The number(s) below refer to the step number(s) on the diagnostic table.

Tests for the proper operation of the signal circuit in the high voltage range.

Tests for the proper operation of the signal circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

Tests for a short to ground in the 5 volt reference circuit.


DTC B2860

Circuit Description
The memory seat and telescoping steering column position settings are stored in the LH Seat Control Module (SCM). The SCM measures and stores the steering column position by using a position sensor, which is an internal part of the telescoping actuator. The SCM provides the position sensor with a 5 volt power supply, and ground. The SCM monitors the position sensor signal voltage, which ranges from 0.1-4.78 volts depending on the steering column position. The steering column position sensor becomes active only when the SCM detects a steering column switch input.

Conditions for Setting the DTC
The steering column position sensor signal, to the SCM, is less than 0.1 volt or greater than 4.78 volts for 2 seconds or more.

Action Taken When the DTC Sets
A history DTC B2860 is stored in the SCM memory.
This DTC can only be set as a history code even if the malfunction is current.
No driver warning message will be displayed for this DTC.
The memory operation/function of the faulted position sensor is disabled.
Conditions for Clearing the DTC
The steering column position sensor input, to the SCM, is within 0.1 volt to 4.78 volts for 2 seconds or more.
Using a scan tool.
Diagnostic Aids
If the DTC does not reset after the code is cleared the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to Testing for Intermittent and Poor Connections in Wiring Systems.
The following conditions may also cause an intermittent malfunction:
There is an intermittent open, short to ground, or short to voltage in steering column telescope motor signal circuit.
The steering column position sensor is open or shorted internally.
If the SCM is unable to determine the correct steering column position, limited manual operation of the telescoping steering column will be functional, but the SCM will be unable to recall the correct memory settings.
Using a scan tool, select SCM data display and monitor the Column Position Fdbk data. Operate the steering column in both directions while monitoring the position sensor data. The voltage should range from 0.1 volt to 4.78 volts depending on the steering column position.
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.

Tests for the proper operation of the circuit in the high voltage range.

Tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

Tests for a short to ground in the 5 volt reference circuit.

 

Thanks to all who replied. Sounds like these aren't serious, but I will need the dealer or someone with a scan tool to clear them.

 

Wow Shawn. You da man.... :cheers:

Bob

I know who I'm calling if I need help. :yesnod: