B2600

DTC B2600

CIRCUIT DESCRIPTION
The seat adjuster motors are controlled by the memory seat module through the adjuster motor control circuits. In an inactive state the adjuster motor control circuits are grounded through switch contacts within the memory seat module. Adjuster motor operation occurs when the memory seat module switches one of the adjuster motor control circuits to battery voltage. The direction of the adjuster motor rotation is determined by which of the control circuits is switched to battery positive and which remains grounded.

CONDITIONS FOR SETTING THE DTC
- The memory seat module detects voltage on an adjuster motor control circuit while no output function is active.
- The condition must be present for 2 seconds.

ACTION TAKEN WHEN THE DTC SETS
- A history DTC will be stored in the memory seat module.
- Memory seat module DTCs can only be set as history codes even if the fault is current.
- No driver warning message will be displayed for this DTC.
- The seat 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 can only be cleared by using a scan tool or the IPC clearing DTCs feature.

DIAGNOSTIC AIDS
If the fault is not current and the telescoping steering column motor and all the seat adjuster motors operate properly the fault may be intermittent.

TEST DESCRIPTION

Steps 1-5:

The number(s) below refer to the step number(s) on the diagnostic table.
3. This step determines if a control circuit is shorted to voltage or the fault is in the memory seat module.