Navigation Systems Cadillac CTS I

Fastener Tightening Specifications

Fastener Tightening Specifications

Navigation System Schematic Icons

Navigation System Schematic Icons Icon Icon Definition IMPORTANT: Twisted-pair wires provide an effective "shield" that helps protect sensitive electronic components from electrical interference. If the wires were covered with shielding, install new shielding. In order to prevent electrical interference from degrading the performance of the connected components, you must maintain the proper specification when making any repairs to the twisted-pair wires shown : The wires must be twisted a minimum of 9 turns per 31 cm (12 in) as measured anywhere along the length of the wires The outside diameter of the twisted wires must not exceed 6.0 mm (0.25 in)

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Navigation System Connector End Views

Auxiliary RCA Video Jacks (Export w/U2Y/U2X) Connector Part Information 12065398 8-Way M Metri-Pack 150 Series (WH) Pin Wire Color Circuit No. Function A BARE 814 Drain Wire B WH 2058 Auxiliary Audio Right Signal C PU 2056 Auxiliary Video High Signal D - - Not Used E YE 2059 Auxiliary Audio Left Signal F BARE 814 Drain Wire G-H - - Not Used

Radio C4 (Export w/U2Y/U2X) Connector Part Information 39-01-2295 22-Way F Mini-Fit Jr. (WH) Pin Wire Color Circuit No. Function 1-5 - - Not Used 6 OG 2047 Video Red Signal (+) 7 TN 5146 Video Red Signal (-) 8 D-BU 2048 Video Green Signal (+) 9 BN 5145 Video Green Signal (-) 10 D-GN 2049 Video Blue Signal (+) 11 GY 5144 Video Blue Signal (-) 12-14 - - Not Used 15 BN 2355 Navigation Display Serial Data Low (Japan w/ U2X) 16 OG 2354 Navigation Display Serial Data High (Japan w/ U2X) 17-19 - - Not Used 20 L-GN 2045 Video Synchronization Signal (+) 21 TN/BK 5147 Video Synchronization Signal (-) 22 - - Not Used

Traffic Information Receiver (Export w/U2Y/U2X) Connector Part Information 12064762 6-Way F Metri-Pack 150 Series (GY) Pin Wire Color Circuit No. Function A OG 2354 Navigation Display Serial Data High B BN 2355 Navigation Display Serial Data Low C BARE 514 Drain Wire D PK 5165 SW Antenna Enable E RD/WH 3240 Battery Positive Voltage F BK/WH 851 Ground

TV Antenna Module (Export w/U2Y/U2X) Connector Part Information V23540-M1054-Y20 54-Way F Siemens (BK) Pin Wire Color Circuit No. Function 1-2 - - Not Used 3 PU 1807 Class 2 Serial Data 4 - - Not Used 5 BN/WH 367 Left Audio Signal (+) (U2K) 6 D-GN/WH 368 Right Audio Signal (+) (U2K) 7 TN/WH 372 Audio Common (U2K) 8-9 - - Not Used 10 BARE 814 Drain Wire 11 L-GN 2045 Video Synchronization Signal (+) 12 TN/BK 5147 Video Synchronization Signal (-) 13 D-GN 2049 Video Blue Signal (+) 14 GY 5144 Video Blue Signal (-) 15 D-BU 2048 Video Green Signal (+) 16 BN 5145 Video Green Signal (-) 17 OG 2047 Video Red Signal (+) 18 TN 5146 Video Red Signal (-) 19 BK/WH 851 Ground 20 RD/WH 3240 Battery Positive Voltage 21-46 - - Not Used 47 YE 2059 Auxiliary Audio Left Signal 48 WH 2058 Auxiliary Audio Right Signal 49 BARE 814 Drain Wire 50-51 - - Not Used 52 PU 2056 Auxiliary Video High Signal 53 BARE 814 Drain Wire 54 - - Not Used

Diagnostic Starting Point - Navigation System

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

1. The identification of the control module(s) which command the system.
2. The ability of the control module(s) to communicate through the serial data circuit.
3. The identification of any stored diagnostic trouble codes (DTCs) and their status.

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

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2: Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
2. 3: Checks for DTCs for each module of the system.
3. 4: The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.

Diagnostic System Check - Navigation System

Scan Tool Data List

Navigation Radio Data

TV Antenna Module Data

Diagnostic Trouble Code (DTC) List

Diagnostic Trouble Code (DTC) List

Circuit Description

The navigation radio receives the vehicle speed signal from the powertrain control module (PCM) through a dedicated circuit shared with the instrument cluster.

Conditions for Running the DTC

1. The navigation radio must detect a power mode transition to ON.
2. The radio does not set this DTC if B1327 or B1328 is current.
3. The vehicle must drive for 2 miles after receiving a GPS signal.

Conditions for Setting the DTC

The navigation radio compares the vehicle speed signal from the PCM to the GPS data. If the GPS signal indicates that the vehicle has traveled 2 miles but no vehicle speed signal was received, the radio sets the DTC.

Action Taken When the DTC Sets

The navigation radio uses the GPS signal when the vehicle speed signal from the PCM is unavailable.

The following symptoms may happen if the vehicle speed signal from the PCM is unavailable

1. The vehicle icon may jump to different positions on the map screen.
2. The vehicle icon, current position marker may not move on the map screen while the vehicle is being driven.
3. The route guidance accuracy may be degraded.

Conditions for Clearing the DTC

1. A current DTC clears when the navigation radio detects the vehicle speed signal from the PCM for more than 1 second.
2. A history DTC clears after 50 ignition cycles without a vehicle speed signal failure.

Diagnostic Aids

An intermittent condition may be caused by the following

1. Misrouted harness
2. Rubbed through wire insulation
3. Broken wire inside the insulation
4. A loose connector pin

The numbers below refer to the step numbers on the diagnostic table.

1. 1: Determines if the malfunction is present.
2. 3: Tests for an open in the vehicle speed signal circuit between the instrument cluster and the navigation radio. A short would cause the instrument cluster to malfunction as well as the navigation system.

DTC B0001

The GPS antenna is connected to the navigation radio by a coaxial cable.

The radio must detect one of the following power modes

1. ACC
2. ON
3. RAP

DTC B2462 does not set if DTC B1328 or B1327 is current.

1. The navigation radio test the GPS antenna every 300 milliseconds.
2. The radio determines there is an open in the GPS antenna.
3. DTC B2462 does not set if DTC B1328 or B1327 is current.

1. Unable to get GPS location updated, the radio uses the last reported position and the vehicle speed signal to calculate the vehicle position.
2. Route guidance may be inaccurate.
3. This failure has no effect outside the navigation system.

1. A current DTC clears when the radio does not detect the failure for more than 10 seconds.
2. A history DTC clears after 50 ignition cycles with no repeat of the failure.

An intermittent condition may be caused by the following

1. Mis-routed harness
2. Rubbed through wire insulation
3. Broken wire inside the insulation

The numbers below refer to the step numbers on the diagnostic table.

1. 1: Determines if the malfunction is present.
2. 3: Determines if the malfunction is due to an internal fault in the navigation radio or a GPS antenna failure.

DTC B2462

The VICS Module Assembly communicates with the navigation radio over two circuits. These are the VICS (+) circuit, and the VICS (-) circuit.

1. The vehicle must be equipped with the VICS Module Assembly. This system is available only on export vehicles and is dealer installed.
2. The navigation radio must detect a power mode transition from OFF-ASLEEP to ON.
3. The navigation radio does not set this DTC if B1327 or B1328 is current.

There is no response from the VICS module when queried by the navigation radio after successfully initializing the system.

The navigation radio does not receive information from the VICS module when the radio detects a power mode transition to ON.

The VICS switch disappears from the navigation system menu.

The navigation radio receives a response from the VICS module.

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

1. 1: Determines if the malfunction is present.
2. 2: Verifies that the DTC sets under normal operating systems.

DTC U2153

1. Perform the «Diagnostic System Check - Navigation System»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control module(s) can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «Navigation System Description and Operation»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__navigation-system-description-and-operation) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Navigation System. Refer to «Checking Aftermarket Accessories»(/cadillac/cts/i-2002-2007/remont/body-electrical/#wiring-systems-diagnostic-information-and-procedures__checking-aftermarket-accessories) in Wiring Systems.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could 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 in Wiring Systems.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «No Global Positioning System (GPS) Reception»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__no-global-positioning-system-gps-reception)
2. «Navigation System - Poor or Inoperative TV Reception»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__navigation-system-poor-or-inoperative)
3. «Aux RCA Video Jacks - Audio Inoperative or Degraded Quality»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__aux-rca-video-jacks-audio)
4. «Aux RCA Video Jacks - Video Inoperative or Degraded Quality»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__aux-rca-video-jacks-video)
5. «Navigation System - Voice Guidance Inoperative or Degraded Quality»(/cadillac/cts/i-2002-2007/remont/navigation-system/#navigation-systems__navigation-system-voice-guidance-inoperative)

No Global Positioning System (GPS) Reception

No Global Positioning System (GPS) Reception

Navigation System - Poor or Inoperative TV Reception

Navigation System - Poor or Inoperative TV Reception

Aux RCA Video Jacks - Audio Inoperative or Degraded Quality

Aux RCA Video Jacks - Audio Inoperative or Degraded Quality

Aux RCA Video Jacks - Video Inoperative or Degraded Quality

Aux RCA Video Jacks - Video Inoperative or Degraded Quality

Navigation System - Voice Guidance Inoperative or Degraded Quality

Navigation System - Voice Guidance Inoperative or Degraded Quality

Scheme 7

1. Remove the I/P retainer. Refer to «Instrument Panel (I/P) Retainer Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
2. Remove the screws (1) securing the global position antenna to the I/P carrier.
3. Remove the wiring from the carrier. IMPORTANT: Do not splice the wiring or make the antenna lead shorter.

Installation Procedure

1. Route the antenna wire to the carrier.
2. Install the antenna to the carrier. Tighten: Tighten the screws (1) to 2 N.m (18 lb in).
3. Install the I/P retainer. Refer to «Instrument Panel (I/P) Retainer Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.

Scheme 8

1. Remove the right rear sail panel. Refer to «Sail Panel Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Remove the fasteners (2) securing the amplifier (1) to the sail panel.
3. Disconnect the coaxial cable.
4. Disconnect the electrical connector.

1. Reconnect the electrical connector. NOTE: Refer to «Fastener Notice»(/cadillac/cts/i-2002-2007/remont/oem-general-information/#cautions-and-notices__fastener-notice) in Cautions and Notices.
2. Install the amplifier (1) to the sail panel using the fasteners (2). Tighten: Tighten the fasteners to 9 N.m (80 lb in).
3. Connect the coaxial cable to the amplifier.
4. Reinstall the sail panel trim. Refer to «Sail Panel Replacement»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

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Scheme 11

1. Remove the rear shelf panel. Refer to «Trim Panel Replacement - Rear Window Shelf»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
2. Disconnect the TV module electrical connector (1).
3. Disconnect the coax cables (3).
4. Remove the fasteners (1) securing the TV module (1) to the rear shelf.
5. Remove the TV module (2) from the rear shelf.

1. Install the TV module (1) to the rear shelf. NOTE: Refer to Fastener Notice in Cautions and Notices.
2. Install the fasteners securing the TV module to the rear shelf. Tighten: Tighten the fasteners to 9 N.m (80 lb in).
3. Connect the coax cables (3) to the TV module.
4. Connect the electrical connector (1).
5. Reinstall the rear shelf. Refer to «Trim Panel Replacement - Rear Window Shelf»(/cadillac/cts/i-2002-2007/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.

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1. Remove the console rear panel. Refer to «Center Console End Panel Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.
2. Disconnect the electrical connector.
3. Release the tabs (1) securing the video jack to the console.
4. Remove the video jack out of the front of the console.

Scheme 14

1. Install the video jack.
2. Connect the electrical connector.
3. Install the rear panel assembly. Refer to «Center Console End Panel Replacement»(/cadillac/cts/i-2002-2007/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console) in Instrument Panel, Gages and Console.

Navigation System Description and Operation

Control Features

Navigation System Components

The navigation system contains the following components

1. Navigation radio
2. Global positioning system (GPS) antenna

The export navigation system contains the following additional components

1. Vehicle information communication system (VICS) module
2. VICS optical beacon antenna
3. Four TV antennae integrated into the rear window glass
4. VICS FM antenna integrated into the rear glass
5. TV antenna module to control antenna selection
6. Antenna amplifier
7. Auxiliary RCA video jacks

Navigation Radio

This component acts as the operator interface for the navigation system, provides the data input from the operator to the navigation system and provides navigation information to the operator via the display screen. The navigation radio is located in the center of the instrument panel. The navigation radio provides the following

1. A display screen. All navigation, audio and TV functions are displayed on this screen.
2. Soft keys on the right side of the display to allow selection from menus and to operate the navigation system, the audio system and the (export) TV system.
3. The navigation system map with routing information displayed on the navigation radio screen.
4. Plan a route and provide turn-by-turn route and map guidance with voice prompts
5. Select a destination from various areas and choices, such as: Street address Intersections Previous destinations Points of interest

Global Positioning System (GPS) Antenna

The GPS locates the current position of the vehicle using signals sent by GPS satellites. The GPS antenna is attached to the I/P carrier and can be accessed by removing the I/P retainer. The GPS antenna is powered through the same coaxial cable used to send the signals to the navigation radio. Interference to the system may occur if any of the following exist

1. Signals are obstructed by objects such as, tall buildings or trees
2. Metallic objects located on the dashboard
3. Aftermarket glass tinting has been applied to the vehicles windshield

TV and VICS Antenna

These several antennae are conductive traces placed on the inside of the rear window glass.

TV Antenna Module

The TV antenna module is located under the rear window shelf. The TV antenna module is used by the navigation radio to automatically select the antenna combination that provides the strongest TV signal to the navigation radio. The TV antenna module also provides the VICS FM signal to the VICS module.

TV Antenna Amplifier

The TV antenna amplifier is mounted behind the trim on 1 side of the rear window. The TV antenna amplifier is powered by the TV antenna module through the same coaxial cable used to carry their signals to the TV antenna module. They are attached to the 4 TV antenna trace patterns in the rear window glass.

Auxiliary RCA Video Jacks

The auxiliary RCA video jacks, used to attach a remote video device, are located at the rear of the center console. These connections may be used to provide audio and video input from a video player or camera to the navigation radio.

VICS Module

The vehicle information communication system (VICS) module, an export only dealer-installed option, uses signals from the optical/microwave beacon antenna and the rear glass VICS antenna via the TV antenna module to convey routing information to the navigation radio. The navigation radio either revises planned routing or relays the VICS information to the operator through the screen of the navigation radio and the voice guidance system.

VICS Optical Beacon Antenna

The vehicle information communication system (VICS) optical beacon antenna is a dealer-installed option. The antenna, which is mounted on the right side of the instrument panel, picks up signals through the front window glass. A coaxial cable carries the power to and signals from this antenna to the navigation radio.

Browser

The navigation radio will allow HTML files to be displayed. The files will only be able to be accessed and viewed. No user input is capable.

Planning a Route

To plan a route a destination must be set. There are various types of destinations available, as listed above. Pressing "Calc" once the destination has been entered will plan the route. To start the route guidance start driving the vehicle. The route guidance will begin automatically after a short distance.

Beam

The beam function allows data to bent sent by a PALM hand held computing device directly into the navigation system. The IR port for the beam function is located in the upper right corner of the navigation radio.

See also:
• Scan Tool Does Not Power Up
• Diagnostic Trouble Code (DTC) List
• Diagnostic Trouble Code (DTC) List
• Entertainment Connector End Views
• Diagnostic System Check - Instrument Cluster
• Circuit Testing
• Wiring Repairs
• Testing for Intermittent Conditions and Poor Connections
• Connector Repairs
• Radio Replacement
• Checking Aftermarket Accessories
• Sail Panel Replacement
• Fastener Notice
• Diagnostic System Check - Navigation System
• Diagnostic Trouble Code (DTC) List
• Navigation System Connector End Views
• Navigation System Description and Operation
• No Global Positioning System (GPS) Reception
• Navigation System - Poor or Inoperative TV Reception
• Aux RCA Video Jacks - Audio Inoperative or Degraded Quality
• Aux RCA Video Jacks - Video Inoperative or Degraded Quality
• Navigation System - Voice Guidance Inoperative or Degraded Quality