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 B3567 01: Driver Information Center Select Switch Circuit Short to Battery

DTC B3567 59: Driver Information Center Select Switch Circuit/Component Protection Time - Out

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

DIC Switch Signal Circuit

1

1

B3567

B3567

DIC Switch Ground Reference Circuit

--

1

--

--

1. Driver Information Center (DIC) Switch(es) Inoperative

Circuit/System Description

The driver information center (DIC) switch is a multiplexed switch. Battery power is provided to the DIC switch via the instrument panel cluster (IPC) with the DIC switch signal circuit pulled up to battery voltage in the IPC. The IPC also provides the DIC switch with a ground reference. The switch input to the IPC is pulled low or grounded when a switch is activated. The DIC switch is a momentary contact switch that connects a series of resistors in a resistor ladder format. The IPC monitors the DIC switch signal circuit to determine the DIC switch inputs. Each switch state -- SET/RESET, VEHICLE INFORMATION, PERSONALIZATION -- corresponds to a certain resistance value. The IPC determines the switch state by the voltage drop across the resistors. A stuck switch or a short to battery for the sets a DTC.

The TRIP/FUEL DIC switch is monitored on a separate circuit provided by the IPC. The TRIP/FUEL switch signal circuit is monitored for a stuck switch but not a short to battery.

Conditions for Running the DTC

The ignition is in ACCESSORY or RUN.

Conditions for Setting the DTC

    • The IPC detects that the DIC switch is stuck.
    • The IPC detects that the DIC switch signal circuit is shorted to battery.

Action Taken When the DTC Sets

The IPC ignores the DIC switch inputs.

Conditions for Clearing the DTC

    • The DTC becomes history when the conditions for setting the DTC are no longer present.
    • The history DTC clears after 40 malfunction-free warm-up cycles.

Diagnostic Aids

    • When the Trip/Fuel switch is stuck, all other DIC switches will function correctly. When any of the 3 switches are stuck, only the Trip/Fuel switch will function correctly.
    • Only the DIC signal circuit can be diagnosed as shorted to battery.

Reference Information

Schematic Reference

Instrument Cluster Schematics

Connector End View Reference

    •  Displays and Gages Connector End Views
    •  Inline Harness Connector End Views

Electrical Information Reference

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

Scan Tool Reference

Scan Tool Data List

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the driver information center (DIC) switch.
  2. Verify a test lamp does not illuminate when connected between the signal circuit terminal 1 and ground.
  3. If the test lamp illuminates, check the DIC switch signal circuits for a short to voltage. If all circuits test normal, replace the IPC.
  4. If all circuits tests normal, test or replace the DIC switch.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Control Module References for the IPC replacement, setup and programming
    •  Driver Information Display Switch Replacement