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Configurable Customer Control System Cadillac DTS I

Memory Modules 2 illustrations ~3199 words

Scheme 1

Scheme 1: Steering Wheel Secondary/Configurable Control Schematics
Scheme 1: Steering Wheel Secondary/Configurable Control Schematics

DIAGNOSTIC CODE INDEX

DTCDescription
DTC B1529B1529 03: Device Voltage Reference Output Circuit Voltage Below Threshold B1529 07: Device Voltage Reference Output Circuit Voltage Above Threshold
DTC B3622B3622 07: Steering Wheel Controls Signal Circuit

DIAGNOSTIC CODE INDEX

Diagnostic Starting Point - Secondary & Configurable Customer Controls

Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check - Vehicle will provide the following information

  1. The identification of the control modules which command the system
  2. The ability of the control modules to communicate through the serial data circuit
  3. The identification of any stored DTCs and their status

The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-system-check-vehicle) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Circuit/System Description

The body control module (BCM) supplies voltage to the audio steering wheel control multiple momentary contact switches and monitors the return signal. Each switch is associated to a set resistance value, when pressed a specific voltage drop occurs through a series of resistors unique to that switch. The BCM identifies the selection, then sends a serial data message that is received by the component controlled, activating the feature.

Conditions for Running the DTC

The ignition is ON.

B1529 03

The BCM senses the supply voltage circuit is below 1.0 volt after 5 seconds.

B1529 07

The BCM senses the supply voltage circuit above 24.5 volts after 5 seconds.

Action Taken When the DTC Sets

The BCM will ignore the switch command.

Conditions for Clearing the DTC

  1. A current DTC clears when the malfunction is no longer present.
  2. A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.

Diagnostic Aids

  1. Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
  2. If a single switch function is inoperative, test the suspect switch. Refer to «component testing»(/cadillac/dts/i-2005-2011/remont/memory-modules/#configurable-customer-control-system__component-testing) .
  3. DTC B1529 07 may be set if the vehicle is equipped with dual batteries that is incorrectly hooked up, or the vehicle is jump started by a tow truck with dual batteries.

Reference Information

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
  2. «Connector Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__testing-for-intermittent-conditions-poor)
  4. «Wiring Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. Verify DTC B1529 07 is not set. If the DTC is set, clear the DTC and operate the vehicle within the Conditions for Running the DTC. If the DTC resets, refer to «Charging System Test»(/cadillac/dts/i-2005-2011/remont/charging-system/#battery-charging-system-and-starting-system) .
  2. Ignition ON, observe the scan tool SWC Bank 1 status while pressing and releasing the switches. The reading should be SW1-SW7 identifying the switch pressed, and Idle when released.

Circuit/System Testing

CAUTIONRefer to SIR Caution .
IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 3 and ground. If less than specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 4 and ground. If greater than specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 3 and the signal circuit terminal 4. If less than specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the X1 harness connector at the BCM.
  6. Test for infinite resistance between the signal circuit terminal 6 and ground. If less than specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace the steering wheel control switch.

Component Testing

CAUTIONRefer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the suspect steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 3 and the signal terminal 4 with the switch in the open position. If less than specified value, replace the switch.
  3. Test for less than 5,400 ohms between the signal terminal 4 and the ignition terminal 3 with the switch in the closed position. If greater than the specified value, replace the steering wheel control switch.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Steering Wheel Control Switch Assembly Replacement»(/cadillac/dts/i-2005-2011/remont/memory-modules/#configurable-customer-control-system)
  2. «Control Module References»(/cadillac/dts/i-2005-2011/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup, and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-system-check-vehicle) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The body control module (BCM) monitors the signal circuit voltage. If the voltage level is too high, damage may result in the system. When a high voltage condition is detected, the BCM will ignore the switch command.

Ignition ON.

Conditions for Setting the DTC

BCM detects voltage above 18.5 volts for 100 msec.

BCM will ignore the switch command.

  1. The condition for setting the DTC is no longer present and the DTC is cleared with a scan tool.
  2. The BCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive ignition cycles.

Test the charging system. Refer to Charging System Test .

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
  2. «Connector Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__testing-for-intermittent-conditions-poor)
  4. «Wiring Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

Symptoms - Secondary & Configurable Customer Controls

IMPORTANTPerform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following conditions are true: There are no DTCs set. The control modules can communicate via the serial data link. Review the system operation in order to familiarize yourself with the system functions. Refer to Steering Wheel Controls Description and Operation .

Visual/Physical Inspection

  1. Inspect for aftermarket devices which may affect the operation of the Steering Wheel Controls System. Refer to «Checking Aftermarket Accessories»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__checking-aftermarket-accessories) .
  2. Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to Steering Wheel Controls Inoperative in order to diagnose the symptom.

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-system-check-vehicle) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/dts/i-2005-2011/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The body control module (BCM) supplies voltage to the audio steering wheel control multiple momentary contact switches and monitors the return signal. Each switch is associated to a set resistance value, when pressed a specific voltage drop occurs through a series of resistors unique to that switch. The BCM identifies the selection, then sends a serial data message that is received by the component controlled, activating the feature.

  1. This diagnostic is for the audio steering wheel controls.
  2. Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
  3. If a single switch function is inoperative, test the suspect switch. Refer to «component testing»(/cadillac/dts/i-2005-2011/remont/memory-modules/#configurable-customer-control-system) .

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
  2. «Connector Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__testing-for-intermittent-conditions-poor)
  4. «Wiring Repairs»(/cadillac/dts/i-2005-2011/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

Ignition ON, observe the BCM data display with the scan tool under Inputs-SWC Bank 1 status. Data displays SW1-SW7 identifying the switch pressed, and Idle when released.

IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 3 and ground. If less than the specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 4 and ground. If greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 3 and the signal circuit terminal 4. If less than the specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the harness connector X1 at the BCM.
  6. Test for infinite resistance between the signal circuit terminal 6 and ground. If less than the specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace the steering wheel control switch.
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 3 and the signal terminal 6 with the switch in the open position. If less than the specified value, replace the steering wheel control switch.
  3. Test for less than 5,400 ohms between the ignition terminal and the signal terminal with the switch closed in each position. If greater than the specified range, replace the steering wheel control switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Steering Wheel Control Switch Assembly Replacement»(/cadillac/dts/i-2005-2011/remont/memory-modules/#configurable-customer-control-system)
  2. «Control Module References»(/cadillac/dts/i-2005-2011/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup, and programming

Scheme 2

Scheme 2: Steering Wheel Control Switch Assembly Replacement
Scheme 2: Steering Wheel Control Switch Assembly Replacement
CalloutComponent Name
NOTE: Refer to Fastener Notice . Preliminary Procedure: Remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
1Steering Wheel Switch Screw (Qty: 4) Tip: Disconnect the electrical connector. Tighten: 1.8 N.m (16 lb in)
2Radio, HVAC and Cruise Control Switch Assembly
NOTE
Refer to Fastener Notice .

Personalization Description & Operation

Personalization features may be set for the vehicle or the driver. Vehicle features do not change with each driver. Specific drivers are recognized by the vehicle through the keyless entry transmitters, the memory buttons, or the driver information center (DIC) and the personalization settings for that driver are recalled.

For more information on vehicle personalization features for this vehicle, refer to Vehicle Personalization .

Steering Wheel Controls Description & Operation

The steering wheel control switches duplicate the function of the primary controls of the associated component, through a network of multiple momentary contact switches and a series of resistors. The body control module (BCM) supplies voltage to the switches and monitors the return signal for when a switch is pressed, a specific voltage drop occurs. The BCM identifies the one selected, then sends a serial data message that is received by the component controlled, activating the feature.

This section is intended to diagnosis the circuits between the BCM and the steering wheel control switches. If the primary control for the device is inoperative, refer to the appropriate section for the component the steering wheel control switch is functioning.

Enter Programming Mode

Pressing the driver information center (DIC) personalization button activates the first level DIC menu items and a subsequent press activates the second level DIC menu items. When the DIC personalization menu is entered and no switch is pressed, the personalization display times out and the DIC displays the last vehicle information screen that was present before entering personalization. Perform the following steps in order to enter the programming mode

  1. Press the DIC personalization button to access the first level personalization items and press the DIC personalization button again to access the second level menu items.
  2. Scroll through the personalization menu using the personalization button or the DIC info up/info down switch until the option is displayed
  3. Press the set/reset button in order to set the desired option.

Exit Lighting

Continue with the following steps in order to personalize the Exit Lighting feature

Scroll through the personalization menu using the personalization button or the info up/info down button until Exit Lighting is displayed.

  1. NO CHANGE
  2. 30 SEC
  3. 60 SEC
  4. 120 SEC
  5. OFF

Press the set/reset button in order to set the desired selection.

Auto Door Lock

This feature allows the driver to determine when doors are automatically locked. Continue with the following steps in order to personalize the auto door lock feature

  1. Scroll through the personalization menu using the personalization button or the info up/info down button until Auto Door Lock is displayed. SHIFT OUT OF PARK (default value) AT VEHICLE SPEED NO CHANGE
  2. Press the set/reset button again in order to set the desired selection.

Auto Door Unlock

Continue with the following steps in order to personalize the auto door unlock feature. This feature allows the driver to determine which doors automatically unlock when the vehicle is shifted into Park (P).

  1. Scroll through the personalization menu using the DIC MENU button until Auto Door Unlock is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF DRIVER AT KEY OUT DRIVER IN PARK ALL AT KEY OUT ALL IN PARK (default value NO CHANGE
  3. Press the Set/Reset button in order to set the desired selection.

Delayed Door Lock

Continue with the following steps in order to personalize the delayed locking feature

  1. Scroll through the personalization menu using the DIC personalization button until Delayed Locking is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF ON (default value) NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

If ON is selected, the doors automatically delay locking for 25 seconds after the door lock is pressed and any of the doors are open. The key must be out of the ignition for this feature to work.

Remote Door Lock

Continue with the following steps in order to personalize the Remote Door Lock feature

  1. Scroll through the personalization menu using the DIC personalization button until Remote Door Lock is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF LIGHTS ONLY HORN ONLY HORN and LIGHTS (default value) NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

If LIGHTS ONLY is selected, the exterior lights will flash when LOCK is pressed on the remote key fob. If LIGHTS and HORN is selected, the exterior lights will flash and the horn will sound once when LOCK is pressed on the remote key fob.

Remote Door Unlock

Continue with the following steps in order to personalize the Remote Door Unlock feature

  1. Scroll through the personalization menu using the DIC personalization button until Remote Door Unlock is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. LIGHTS OFF LIGHTS ON (default value) NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

If LIGHTS ON is selected, the exterior lights will flash when UNLOCK is pressed on the remote key fob.

Approach Lighting

Continue with the following steps in order to personalize the Approach Lighting option

  1. Scroll through the personalization menu using the DIC personalization button until Approach Lighting is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF ON (default value) NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Remote Start

Continue with the following steps in order to personalize the Remote Start option

  1. Scroll through the personalization menu using the DIC personalization button until Remote Start is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF ON (default value) NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Memory Seat Recall

Continue with the following steps in order to personalize the Memory Seat Recall

  1. Scroll through the personalization menu using the DIC personalization button until Memory Seat Recall is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF (default value) ON NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Easy Exit Seat

Continue with the following steps in order to personalize the Easy Exit Seat option

  1. Scroll through the personalization menu using the DIC personalization button until Easy Exit Seat is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF (default value) ON NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Park Tilt Mirrors

Continue with the following steps in order to personalize the Park Tilt Mirror option

  1. Scroll through the personalization menu using the DIC personalization button until Park Tilt Mirror is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. OFF (default value) DRIVER MIRROR PASSENGER MIRROR BOTH MIRRORS NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Chime Volume

Continue with the following steps in order to personalize the Chime Volume option

  1. Scroll through the personalization menu using the DIC personalization button until Chime Volume is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. NORMAL (default value) LOUD NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Auto High Beam (Smart Beam)

Continue with the following steps in order to personalize the Auto High Beam (Smart Beam) option

  1. Scroll through the personalization menu using the DIC personalization button until Auto High Beam (Smart Beam) is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. ON (default value) OFF NO CHANGE
  3. Press the set/reset button in order to set the desired selection.

Language

Continue with the following steps in order to personalize the Language option

  1. Scroll through the personalization menu using the DIC personalization button until Language is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. ENGLISH (default value) SPANISH FRENCH GERMAN ITALIAN JAPANESE
  3. Press the set/reset button in order to set the desired selection.

A simultaneous press of the DIC information button and the personalization button for about 1 second provides a shortcut to change the language without understanding the currently displayed language.

Factory Setting

Continue with the following steps in order to return to Factory Setting

  1. Scroll through the personalization menu using the DIC personalization button until Factory Setting is displayed.
  2. Press the personalization button or the info up/info down button to scroll through the following options. RESTORE ALL DO NOT RESTORE
  3. Press the set/reset button in order to set the desired selection.

Additional Information

For more information about the personalization features, refer to one of the following description and operations

  1. Refer to «Power Door Locks Description and Operation»(/cadillac/dts/i-2005-2011/remont/door-locks-anti-theft-systems/#door-lock-systems-door-handles) for more information about the automatic door lock feature.
  2. Refer to «Interior Lighting Systems Description and Operation»(/cadillac/dts/i-2005-2011/remont/exterior-lights/#lighting-systems) for more information about the delayed headlamp illumination feature.
  3. Refer to «Keyless Entry System Description and Operation»(/cadillac/dts/i-2005-2011/remont/door-locks-anti-theft-systems/#keyless-entry-system-remote-functions__keyless-entry-system-description-operation) for more information about remote activation verification.
  4. Refer to «Memory Seats Description and Operation»(/cadillac/dts/i-2005-2011/remont/seats/#power-seat-system__memory-seats-description-operation) for more information about remote activation verification.