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Makes 🢒 Cadillac 🢒 2008 🢒 SLS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 DTC P0575

DTC P0575 3.6L (LY7)

Circuit Description

The body control module (BCM) detects a predetermined voltage signal when any cruise control switch function is activated. The BCM sends a group of GMLAN serial data message to the ECM, indicating this function has been requested.

DTC Descriptor

This diagnostic procedure supports the following DTCs:

DTC P0575 Cruise Control Switch Signal Circuit

Conditions for Running the DTC
    • LAN bus has been initialized and ready for use.
    • It is 3 seconds after ignition.
    • Ignition 1 voltage is between 10.5-18 volts.
    • Normal bus communication is going on.
    • Once the above conditions are reached for 10 seconds, DTC P0575 will run continuously.

Conditions for Setting the DTC
    • The ECM receives an invalid cruise control switch status GMLAN serial data message from the BCM.
    • The diagnosis runs continuously.
    • It lasts for 4 seconds. The above conditions last for 4 seconds.

Actions Taken When DTC sets
    • The Cruise Control System is switched off.
    • The ECM stores the DTC information into memory when the diagnostic runs and fails.
    • The Malfunction Indicator Lamp (MIL) does not illuminate.
    • The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Failure Records.

Conditions for Clearing the MIL/DTC
    • A last test failed, or the current DTC, clears when the diagnosis runs and does not fail.
    • A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
    • Clear the MIL/DTC with a scan tool.

Diagnostic Aids

This DTC may be stored as a history DTC without affecting the operation of the BCM. If stored only as a history DTC and not retrieved as a current DTC, do not replace the BCM.

If this DTC is retrieved as both a current and a history DTC, replace the BCM.

Step

Action

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Connector End Views

1

Have you conducted Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Does ECM DTC P0575 set as a current DTC?

Go to Step 3

Go to Diagnostic Aids

3

Replace the body control module (BCM). Refer to Control Module References for replacement, setup, and programming.

Go to Step 4

--

4
  1. Clear away all DTCs with scan tool.
  2. Operate the vehicle according to the conditions for running the DTC.

Is there any DTC set again?

Go to Step 2

System OK

DTC P0575 4.6L (LH2)

Circuit Description

The body control module (BCM) detects a predetermined voltage signal when any cruise control switch function is activated. The BCM sends a group of GMLAN serial data message to the ECM, indicating this function has been requested.

DTC Descriptor

This diagnostic procedure supports the following DTCs:

DTC P0575 Cruise Control Switch Signal Circuit

Conditions for Running the DTC
    • LAN bus has been initialized and ready for use.
    • It is 3 seconds after ignition.
    • Ignition 1 voltage is between 10.5-18 volts.
    • Normal bus communication is going on.
    • Once the above conditions are reached for 10 seconds, DTC P0575 will run continuously.

Conditions for Setting the DTC
    • The ECM receives an invalid cruise control switch status GMLAN serial data message from the BCM.
    • The diagnosis runs continuously.
    • It lasts for 4 seconds. The above conditions last for 4 seconds.

Actions Taken When DTC sets
    • The Cruise Control System is switched off.
    • The ECM stores the DTC information into memory when the diagnostic runs and fails.
    • The Malfunction Indicator Lamp (MIL) does not illuminate.
    • The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Failure Records.

Conditions for Clearing the MIL/DTC
    • A last test failed, or the current DTC, clears when the diagnosis runs and does not fail.
    • A history DTC clears after 40 consecutive warm-up cycles, if failures are not reported by this or any other emission related diagnostic.
    • Clear the MIL/DTC with a scan tool.

Diagnostic Aids

This DTC may be stored as a history DTC without affecting the operation of the BCM. If stored only as a history DTC and not retrieved as a current DTC, do not replace the BCM.

If this DTC is retrieved as both a current and a history DTC, replace the BCM.

Step

Action

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Connector End Views

1

Have you conducted Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Does ECM DTC P0575 set as a current DTC?

Go to Step 3

Go to Diagnostic Aids

3

Replace the body control module (BCM). Refer to Control Module References for replacement, setup, and programming.

Go to Step 4

--

4
  1. 1. Clear away all DTCs with scan tool.
  2. 2. Operate the vehicle according to the conditions for running the DTC.

Is there any DTC set again?

Go to Step 6

System OK

5

Replace the electronic brake control module (EBCM). Refer to Control Module References to replace, set and program.

Is the replacement completed?

Go to Step 2

--

6
  1. Clear away all DTCs with scan tool.
  2. Operate the vehicle in the Conditions for Running the DTC.

Is there any DTC set again?

Go to Step 2

System OK