B2757

DTC B2757, B2762, B2767, or B2772

Circuit Description

The memory function switches are normally open and are wired to the driver door switch assembly (DDSA). When a memory recall switch is pressed, the switch pulls the 5-volt signal circuit from the DDSA low. The DDSA senses that a memory recall signal was pulled low and a class 2 message is sent out identifying that the circuit is active.

DTC Descriptors

This diagnostic procedure supports the following DTCs:

* DTC B2757 Memory 1 Select Switch Circuit Low
* DTC B2762 Memory 2 Select Switch Circuit Low
* DTC B2767 Memory Set Switch Circuit Low
* DTC B2772 Memory Exit or Off Switch Circuit Low

Conditions for Running the DTC

The DDSA must be powered and can not have B1328 - Battery Voltage High or B1327 - Battery Voltage Low as active DTCs for this DTC to set.

Conditions for Setting the DTC

If a memory switch signal circuit is active for more that 30 continuous seconds, the circuit will be considered shorted, and the DDSA will set this DTC.

Action Taken When the DTC Sets

The DDSA ignores the invalid switch signal from the memory function switch and will not respond to it. The DDSA will respond to all other valid switch signals.

Conditions for Clearing the DTC

The DTC automatically clears when the switch circuit setting the DTC is no longer active.

Test Description

Step 1 - Step 9:

The numbers below refer to the step numbers on the diagnostic table.
2. Checks the existing state of the memory switch by using the current state of the memory switch parameter.
9. This step verifies the repair.