B2200

Diagnostic Chart:

SCHEMATIC
Refer to Power Window Schematics Front Power Window Components schematic.

CIRCUIT DESCRIPTION
The simple bus interface provides a communications path from the LH front power window switch and the driver door module (DDM). The DDM contains both switch message decoding software and a 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 B2200 will set any time one of the driver door power window switches is detected as being continuously closed in the UP position 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
The switch command will be ignored until it changes stale.

CONDITIONS FOR CLEARING THE DTC
^ This DTC will set from current to history when the window up input cycles off.
^ The history DTC will clear after 50 ignition cycle.

DIAGNOSTIC AIDS
^ A history DTC is evidence of an intermittent condition.
^ If DTC B2200 is current, cycle the ignition switch from OFF to RUN. If this DTC is still current, replace the LH front power window switch assembly. The individual power window switches are an integral part of the LH front power window switch assembly. The individual power window switches cannot be replaced separately. Refer to Front Door Switch Replacement.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. Check the module input state using the normal input status.
3. Check to see that the input is seen by the module.