Refer to
Cell 147: Left Outside Power Mirror
.
Circuit Description
The left front power window switch receives inputs from the memory function switch. When you press the MEMORY-2 switch, 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 recall 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 B2241 sets when the MEMORY-2 switch is active for 30 seconds continuously. The switch is shorted. |
| • | DTC DDM B2241 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 inputs from the shorted memory function switch. |
| • | The DDM will continue to respond to valid inputs from the other memory function switches. |
Conditions for Clearing the DTC
| • | This DTC will set from current to history when the Memory-2 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 DMM 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.
-
This step determines if there is a stuck switch in the wiring input to the left front power window switch. The DTC will set again if there is a short in the wiring or there is an internal left front power window switch problem. The DTC will not set again if there is a stuck switch because the switch is disconnected from the left front power window switch.
-
This step determines if there is a short in the input wiring to the left front power window switch.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Power Door Diagnostic System Check performed? | -- | Go to Step 2 | |
Does the DTC set again? | -- | Go to Step 3 | Go to Step 5 | |
Test for a short to ground in CKT 616 (PPL). Is there a short to ground in CKT 616 (PPL)? | -- | Go to Step 6 | Go to Step 4 | |
4 | Replace the left front power window switch. Refer to Front Side Door Window Switch Replacement . Is the repair complete? | -- | Go to Step 7 | -- |
5 | Replace the memory function switch. Is the repair complete? | -- | Go to Step 7 | -- |
6 | Repair the short to ground in CKT 616 (PPL). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 7 | -- |
7 |
Are all to the DTCs cleared? | -- | -- |
