Refer to
Cell 147: Left Outside Power Mirror
.
Circuit Description
The left front power window switch receives inputs from the memory function switch EXIT switch through simultaneous memory 1 and memory 2 inputs when you press the EXIT button. The left front power window switch recognizes the input and sends a message on the simple bus interface (SBI) to the driver door module (DDM).
The message indicates that the left front power window switch received a memory exit input. The DDM then relays the message through the class 2 serial data line to the memory seat module (MSM).
Conditions for Setting the DTC
| • | DTC DDM B2242 sets when the EXIT switch is active for 30 seconds continuously. The switch is shorted. |
| • | DTC DDM B2242 will not set if the following DTCs are current: |
| - | DTC DDM B1982 |
| - | DTC DDM B1983 |
Action Taken When the DTC Sets
| • | The DDM will not respond to memory EXIT inputs. |
| • | The following buttons will not respond because the memory exit button is an input on the memory 1 and memory 2 inputs to the left front power window switch: |
| • | The MEMORY-1 button |
| • | The MEMORY-2 button |
Conditions for Clearing the DTC
| • | This DTC will set from current to history when the Memory Exit switch input cycles OFF or the power mode changes from OFF to RUN. |
| • | The history DTC will clear after 50 consecutive ignition cycles. |
| • | Use a scan tool in order to clear the history DTC. |
Diagnostic Aids
| • | The scan tool can be selected to monitor DDM inputs and outputs as well as view DTCs. |
| • | A history DTC is evidence of a intermittent condition. |
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
-
Clear all DTCs and cycle the ignition in order to test that the DTC did not set falsely.
-
This step determines if the condition is in the memory function switch or the left front power window switch.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Power Door Diagnostic System Check? | -- | Go to Step 2 | |
Does the DTC set again? | -- | Go to Step 3 | ||
Does the DTC set again? | -- | Go to Step 4 | Go to Step 5 | |
4 | Replace the left front power window switch. Refer to Front Side Door Window Switch Replacement . Is the repair complete? | -- | Go to Step 6 | -- |
5 | Replace the memory function switch. Is the repair complete? | -- | Go to Step 6 | -- |
6 |
Are all to the DTCs cleared? | -- | -- |
