GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B3205 00: Window Inactive Over Current Fault

DTC B3205 0B: Window Motor Fast Over Current Fault

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Driver Door Switch B+

U0199 00

U0199 00

--

--

LR Window Switch B+

1, 3

3

--

--

Passenger Door Switch B+

U0200 00

U0200 00

--

--

RR Window Switch B+

2, 4

4

--

--

Power Window Switch Right Rear Down Signal

B3823 00

B3823 00

B3823 00

--

Power Window Switch Right Rear Up Signal

B3822 00

B3822 00

B3822 00

--

Power Window Switch Left Rear Down Signal

B3820 00

B3820 00

B3820 00

--

Power Window Switch Left Rear Up Signal

B3819 00

B3819 00

B3819 00

--

Power Window Lockout Left Rear Control

B3821 00

B3821 00

B3821 00

--

Power Window Lockout Right Rear Control

B3824 00

B3824 00

B3824 00

--

LR Window Motor Control

3

3

3

--

Passenger Window Motor Control

B3205 00

B3205 0B

B3205 00

--

RR Window Motor Control

4

4

4

--

Driver Window Motor Control

B3205 00

B3205 0B

B3205 00

--

LR Window Switch Ground

--

3

3

--

RR Window Switch Ground

--

4

4

--

Driver Door Switch Ground

--

U0199 00

1

--

Passenger Door Switch Ground

--

U0200 00

2

--

1. Driver Window Malfunction

2. Passenger Window Malfunction

3. Left Rear Window Malfunction

4. Right Rear Window Malfunction

Circuit/System Description

The driver door switch (DDS) and passenger door switch (PDS) control the power window functions through the power window motor up and down control circuits. The door switches monitor the control circuits for fault conditions when up or down operation is requested prior to activating the function and during operation.

Conditions for Running the DTC

    • Battery voltage must be between 9-16 volts.
    • The ignition is ON.

Conditions for Setting the DTC

B3205 00

The DDS or PDS detects a short to ground or short to voltage on their respective window motor control circuit.

B3205 0B

The DDS or PDS has detected excessive current flow on their respective window motor control circuit.

Action Taken When the DTC Sets

The affected power window will be inoperative.

Conditions for Clearing the DTC

    • The DTC will be current for as long as the fault is present.
    • When the fault is no longer present, the DTC will be a history DTC.
    • A history DTC will clear after 50 ignition cycles.

Diagnostic Aids

B3205 0B can be set due to excessive physical resistance in the window regulator assembly. Ensure proper mechanical operation of the regulator assembly prior to replacing electrical components.

Reference Information

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Observe the operation of the power windows while commanding each window UP and DOWN by using their respective window switches, each window should perform the UP and DOWN function.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Connect a test lamp between control circuit terminal A and control circuit terminal B.
  3. Ignition ON, command the window UP and DOWN by using the door switch. The test lamp should turn ON when commanding the UP and DOWN states.
  4. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the door switch.
    If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the door switch
  5. If all circuits test normal, test or replace the window motor.

Component Testing

Important: When performing the following tests, make sure that the window motor is not all ready in the position the test is attempting to produce.

  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Install a 25A fused jumper wire between the control terminal A and 12 volts. Momentarily install a jumper wire between the control terminal B and ground. The window motor should perform the UP or DOWN function.
  3. If the function does not perform as specified, replace the window motor.
  4. Reverse the jumper wires; the window motor should perform the DOWN or UP function.
  5. If the function does not perform as specified, replace the window motor

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Front Side Door Window Regulator Motor Replacement
    •  Control Module References for DDS and PDS replacement, setup, and programming