Circuit Description
The simple bus interface (SBI), CKT 217 (LT BLU), provides a communications path from both the passenger door and the rear door modules (RDM) to the driver door module (DDM). The DDM contains the following 2 types of software:
| • | Switch message decoding software |
| • | SBI diagnostic software |
The software enables the DDM to monitor the rear door power window switch states.
Conditions for Setting the DTC
DTC B2207 will set any time one of the rear power window switches is continuously closed in either the UP or the DOWN position for a period greater than 15 seconds.
DTCs B1982 (battery voltage high) and DTC B1983 (battery voltage low) must not be current or the diagnostic will not run.
Action Taken When The DTC Sets
The switch command will be ignored until the switch command again changes state or the ignition cycles from OFF to RUN.
Conditions for Clearing the MIL/DTC
| • | This DTC will be set from current to history when the window DOWN input cycles off or when the power mode changes from OFF to RUN. |
| • | The history DTC will clear after 50 ignition cycles. |
| • | Use a scan tool in order to clear the history DTC. |
Diagnostic Aids
| • | A history DTC is evidence of an intermittent problem. |
| • | If DTC B2207 is current, cycle the ignition from OFF to RUN. If the DTC is still current, perform the following diagnostic procedure. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
Perform the Power Door Diagnostic System Check prior to continuing the diagnosis of this DTC.
-
This step tests for other current set DTCs.
-
This step verifies the operation of the rear door power window switches.
-
This step tests CKT 1188 for a short to ground.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Was the Power Door Diagnostic System Check performed? | -- | Go to Step 2 | ||
Are both DTC B2203 and DTC B2205, or DTC B2206 and DTC B2207 set current? | -- | Go to Step 5 | Go to Step 3 | |
Is one of the rear door window switches stuck in the up position or in the down position? | -- | Go to Step 6 | Go to Step 4 | |
Test CKT 1188 (DK GRN) for a short to ground. Did you find a short to ground? | -- | Go to Step 6 | Go to Step 7 | |
5 | Replace the rear door module. Refer to Door Control Module Replacement . Is the repair complete? | -- | Go to Step 8 | -- |
6 | Replace the right front power window switch. Refer to Front Side Door Window Switch Replacement . Is the repair complete? | -- | Go to Step 8 | -- |
7 | Repair the short to ground in CKT 1188 (DK GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 8 | -- |
8 |
Are all of the DTCs cleared? | -- | -- |
