B2208

Power Windows Schematics: Rear Power Window Components:

DTC B2208 Express Window Contact Shorted to Ground:

CIRCUIT DESCRIPTION
The simple bus interface, CKT 217 (LT BLU), provides a communications path from the LH front power window switch to the Driver Door Module (DDM). The DDM contains the following two types of software:
^ Switch message decoding software
^ Simple bus interface diagnostic software

The software enables the DDM to monitor the state of the LH front power window switch.

CONDITIONS FOR SETTING THE DTC
^ DTC B2208 sets any time one of the LH front power window switches is detected as being continuously closed, for a period greater than 15 seconds.
^ DTCs B1982 (Battery Voltage High) and B1983 (Battery Voltage Low) must not be current or the diagnostic will not run.

ACTION TAKEN WHEN THE DTC SETS
When this DTC is set, express functions are disabled bur regular movement is not affected.

CONDITIONS FOR CLEARING THE MIL/DTC
^ This DTC will set from current to history when the EXPRESS 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 a history DTC.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
1. Perform the Power Door Diagnostic System Check prior to diagnosing DTC B2208.
2. This test step checks the existing state of the LH front power window switch.