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

DDS B+

1

1

--

--

LR Window Switch B+

3

3

--

--

PDS B+

2

2

--

--

RR Window Switch B+

4

4

--

--

Passenger Window Motor Control

B3205 00

B3205 0B

B3205 00

--

Driver Window Motor Control

B3205 00

B3205 0B

B3205 00

--

LR Window Motor Control

3

3

3

--

RR Window Motor Control

4

4

4

--

Window Master Switch LR Down Control

B3820 00

B3820 00

B3820 00

--

LR Window Master Switch Lockout Control

B3821 00

B3821 00

B3821 00

--

RR Window Master Switch Lockout Control

B3824 00

B3824 00

B3824 00

--

Window Master Switch LR Up Control

B3819 00

B3819 00

B3819 00

--

Window Master Switch RR Down Control

B3823 00

B3823 00

B3823 00

--

Window Master Switch RR Up Control

B3822 00

B3822 00

B3822 00

--

LR Window Switch Ground

--

3

3

--

RR Window Switch Ground

--

4

4

--

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.

Conditions for Setting the DTC

B3205 00

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

B3205 0B

During 5 occurrences of power window motor operation in an ignition cycle, the DDS or PDS has detected excessive current flow on a window motor control circuit.

Action Taken When the DTC Sets

The driver or passenger 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

DTC 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

Window Systems Connector End Views

Power Windows 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

    •  Scan Tool Data Definitions
    •  Scan Tool Data List
    •  Scan Tool Output Controls

Circuit/System Verification

Igntition ON, observe the operation of the front 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 front window motor.
  2. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
  3. Ignition ON, command the window UP and DOWN by using the window switch. The test lamp should illuminate 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 an 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 front window motor.

Component Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
  2. Install a 25A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the window motor should perform the UP/DOWN functions.
  3. If it 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 or PDS replacement, programming, and setup