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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Cavalier 🢒 Brakes 🢒 Hydraulic Brakes 🢒 DTC B0005 In Park Switch Circuit Malfunction

Object Number: 491075 Size: SF
Body Control Module Components
Body Control System Schematics

Circuit Description

The park brake switch is a discrete input to the body control module (BCM). When the park brake is applied, the park brake switch grounds the park brake switch input to the BCM (circuit 1134).

Conditions for Running the DTC
    • The ignition switch is on.
    • The vehicle speed is above 8 Kph (5 Mph).

Conditions for Setting the DTC

The park brake switch input to the BCM is grounded for 2 seconds

Action Taken When the DTC Sets

The park brake chime sounds until the vehicle speed is reduced or the park brake switch is released.

Conditions for Clearing the DTC
    • A current DTC B0005 will clear when the vehicle speed is reduced or the park brake switch is released.
    • All BCM history codes clear after 100 ignition cycles with no current codes active during th 100 ignition cycles.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. The normal state of the PARK BRAKE SWITCH parameter is OFF with the park brake unapplied.

    2.

  2. The normal state of the PARK BRAKE SWITCH parameter is ON with the park brake applied.

    3.

  3. The normal state of the PARK BRAKE SWITCH parameter is OFF with the park brake switch disconnected.

Step

Action

Value(s)

Yes

No

1

Did you perform the Hydraulic Brake Diagnostic System Check?

--

Go to Step 2

Go to Hydraulic Brake Diagnostic System Check

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Ensure that the park brake is unapplied.
  4. With a scan tool, observe the PARK BRAKE SWITCH parameter in the BCM data list.

Does the scan tool display OFF?

--

Go to Step 3

Go to Step 4

3

  1. Apply the park brake.
  2. With the scan tool, observe the PARK BRAKE SWITCH parameter.

Does the PARK BRAKE SWITCH parameter change state?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 4

4

  1. Turn OFF the ignition.
  2. Disconnect the park brake switch.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the PARK BRAKE SWITCH parameter.

Does the scan tool display OFF?

--

Go to Step 7

Go to Step 5

5

Test the signal circuit of the park brake switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 6

6

Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 8

7

Inspect for poor connections at the harness connector of the park brake switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 9

8

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Important: Perform the setup procedure for the BCM. Refer to Body Control Module (BCM) Programming/RPO Configuration .

Did you complete the replacement?

--

Go to Step 10

--

9

Replace the park brake switch.

Did you complete the replacement?

--

Go to Step 10

--

10
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

--

Go to Step 2

System OK