B2203

Diagnostic Chart:

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

CIRCUIT DESCRIPTION
The simple bus interface provides a communications path from both the passenger door module (PDM) and rear door module (RDM) and 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 passenger door power window switch.

The switch setting this DTC is wired to the passenger door module.

CONDITIONS FOR RUNNING THE DTC
^ All modules in the circuit must be powered.
^ DTCs B1982 (battery voltage high) and B1983 (battery voltage low) must not be set as current DTCs.
^ All modules in the circuit must be communicating (no communications DTCs set as current).

CONDITIONS FOR SETTING THE DTC
DTC B2203 sets when the front passenger power window switch is continuously closed in the DOWN position for a period of 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 again changes state.

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 cycles.

DIAGNOSTIC AIDS
^ A history DTC is evidence of an intermittent condition.
^ If DTC B2203 is current, cycle the ignition switch from OFF to RUN. If this DTC is still current, perform the following diagnostic procedure.

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.
4. Check to see that the signal lines to the module are open with the switch removed.
5. Check to see that the signal circuits are not shorted.