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Upgrading Instrument Clusters for the Holden VY Commodore

  • This Document Describes the differences between various models of Instrument Clusters fitted to the VZ Series Holden Commodore.
    It also has information on upgrading an Instrument Cluster, modifications that need to be made, wiring information, and some points to watch out for when performing these upgrades.

    There were several models of Instrument Clusters that were fitted to the VZ Series Commodore.
    The Following Images of Clusters have been taken from various VZ Commodore Models, and include,
  • Instrument Clusters as fitted to the Executive
  • Instrument Clusters as fitted to the Berlina
  • Instrument Clusters as fitted to the SV6 and SS Models
  • Instrument Clusters as fitted to Calais and Calais Models
  • Instrument Clusters as fitted to the Statesman Caprice Models
  • Instrument Clusters as fitted to the HSV Short Wheelbase Models
  • Instrument Clusters as fitted to the HSV Grange Models

  • Please note: VY and VZ Instrument are not interchangable
    VY Instrument clusters can be identified by the Grey Coloured Connector on the back on of the Instrument Cluster.
    VZ Instrument Clusters have a Blue Connector on the back of the Instrument Cluster.
    The Grey Connector for a VY Instrument Cluster The Blue Connector for a VZ Instrument Cluster

    IMPORTANT NOTE REGARDING VY INSTRUMENT CLUSTERS
    A different fuel level sender was used between Series I and Series II VY Holden Commodores.
    The change in the fuel level sender can screw up fuel readings when using a Series II Cluster in a Series I Vehicle, and likewise using a Series I Cluster in a Series II Vehicle.
    If this problem occures, the Instrument Cluster can be reprogrammed by Holden to work properly with the fuel level sender installed in the vehicle.
  • The Commodore Executive Instrument Cluster
    This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Green Illumination, with Red Cluster Needles
  • 240Km Electronic Speedo, with 20Km Speed Numeral Markings, and 5Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 500RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • This cluster has the following features
  • Large Driver Information Centre LCD Panel, displaying critical vehicle information
  • Two Smaller LCD Panels displaying user configurable trip computer information
  • Green Cluster Illumination, with White Cluster Needles
  • 240Km Electronic Speedo, with 20Km Speed Numeral Markings, and 5Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 500RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • The Commodore SV6 Instrument Cluster
    This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Green Cluster Illumination, with Red Cluster Needles
  • 240Km Electronic Speedo, with 20Km Speed Numeral Markings, and 10Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 250RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Green Cluster Illumination, with Red Cluster Needles
  • 260Km Electronic Speedo, with 20Km Speed Numeral Markings, and 5Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 250RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • The VZ Calais Instrument Cluster
    This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Two Smaller LCD Panels displaying user configurable trip computer information
  • Green Cluster Illumination, with White Cluster Needles
  • 260Km Electronic Speedo, with 20Km Speed Numeral Markings, and 10Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 500RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • The Statesman and Carpice Instrument Cluster
    This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Two Smaller LCD Panels displaying user configurable trip computer information
  • Green Cluster Illumination, with White Cluster Needles
  • 240Km Electronic Speedo, with 10Km Speed Numeral Markings, and 5Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 500RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • VZ HSV Instrument Cluster (Short Wheel Base)
    This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Two Smaller LCD Panels displaying user configurable trip computer information
  • White Cluster Illumination, with Red Cluster Needles
  • White Cluster faces with HSV Logo
  • 260Km Electronic Speedo, with 20Km Speed Numeral Markings, and 10Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 250RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • This cluster has the following features
  • Driver Information Centre LCD Panel, displaying critical vehicle information
  • Two Smaller LCD Panels displaying user configurable trip computer information
  • White Cluster Illumination, with Red Cluster Needles
  • White Cluster faces with HSV Logo
  • 260Km Electronic Speedo, with 20Km Speed Numeral Markings, and 5Km Line Markings
  • 7000 RPM Tacho, with 1000RPM Numeral Markings, and 250RPM Line Markings
  • Fuel Gauge with Electronic Dampening with Low Fuel Warning
  • Temperature Gauge, with high Temperature warning Lamp
  • Seatbelt Warning for Driver
  • Security Warning Lamp
  • Park Brake Warning
  • Brake Fail Warning Lamp
  • Turn Signal and High Beam Indicators
  • Lights on with Ignition off warning
  • Low Oil Warning Lamp
  • Alternator Warning Lamp
  • Service Due Warning
  • Spot Lamp Indicator Lamp-
  • Diagnostic Mode
  • The instrument cluster engineering mode is a special diagnostic mode that has been available on Holden Commodore clusters since the VN Calais.
    Engineering mode allows you to view diagnostic information such as the clusters part number, software version, vehicle voltage, switch positions, raw guage readings, and other interesting tidbits about the vehicle.

    To enter the VY and VZ Commodore Cluster Engineering Mode
    1. Press and hold the MODE and SET buttons down simultaneously.
    2. Switch ignition to the ON position.
    3. Release the MODE and SET buttons.
    4. The Drivers Information Center LCD Display will read "Engineering Mode", and will display the GM Part NUmber for the Cluster.
    5. Press the Mode button to proceed through to the next menu option.

    The following menu options are available in engineering mode,
    1 Software Version - This option will display the software or firmware version uploaded in to the instrument cluster
    2 Holden Part Number - This option will display the Holden Part number for the instrument cluster installed in the vehicle
    3 Fuel Calibration Part Number - This option will display the fuel tank size and fuel sender unit resistance to the instrument cluster.
    4 Fuel Remaining in Tank - This option will display the remaining fuel in the fuel tank in Litres
    5 Instantaneous Fuel - This option will display the live fuel consumption in Litres
    6 Engine Coolant Temperature - This option will display the live coolant temperature as read from the collant sensor, in degrees ?C
    7 Vehicle Speed - This option will display the vehicle speed digitally, in Kms/hr or Mph
    8 Engine RPM - This option will display the Engine RPM digitally
    9 Park Lamp State - This option show the park lamps state, I.E. if the park lamps are currently ON or OFF
    10 Day Time Running Lamps - This option shows the day time running lamps state.
    The daytime running lamps circuit provides illumination of the low beam headlamps when the following conditions are satisfied: PRNDL not in Park (Automatic transmission only).
    Park brake is released. Vehicle speed exceeds 11 km/h (7 MPH) Park lamps are off.
    11 Trouble Codes - The Trouble Codes screen displays 2 rows of 16 digits each.
    If no DTC is set the 32 digits are all zeros (0). However, if a DTC is set, this is represented by a one (1) in the appropriate position in the rows.
    To determine the actual DTC number that has been set, count the digits from the bottom right hand side, starting at zero.
    16 Cluster Self Test - This option will illuminate all cluster warnings lamps, and will position all cluster needles to the following positions.
    The temperature gage and the fuel gage are set to the halfway mark (50%).
  • The tachometer is set to 3,000 RPM.
  • The speedometer is set to 70 MPH or 70 km/h.
  • The chime is activated at 1 kHz.
  • The warning indicator LEDs that are driven by either the internal microprocessor or from the serial data line are illuminated. These are Airbag, Brake Park/Fail, Seat Belt and Shift 1 - 4.
  • All segments of the MFD and the side LCDs are illuminated.

  • When swapping instrument clusters, you will need to have the original odometer reading, as well as other important vehicle parameters programmed in to the replacement cluster.
    in order for the new cluster / vehicle to function
    These settings include,
    1) Odometer Reading
    2) Fuel Guage Calibration
    3) Police Mode

    Programming the Odometer
    It is possible to reset the Odometer reading on an instrument cluster if the odometer reading is no more than 100 Kms
    When programming the odometer, it is essential that the correct value be entered as the odometer reading can only be programmed once.

    To Program the Instrument Cluster Odometer Reading, you will need a suitable Diagnostic Scan Tool
    1) Install and connect the diagnostic scan tool to the vehicle
    2) Select the Body Type from the scan tool,
    3) Select IPC (Instrument Panel Cluster) from the scantool menu,
    4) Select the Programming menu option,
    5) Select the Program Odometer menu option, and follow the menu prompts on the scan tool.

    Programming the Fuel Guage Calibration
    When an instrument cluster is replaced, the Fuel Calibration Part Number is to be entered using the Tech 2 Programmer.
    This identifies the fuel tank size and fuel sender unit resistance to the instrument cluster.
    The Fuel Calibration Part Number is identified by the Code Index Number, which is associated with a particular vehicle configuration.
    The Code Version Number identifies the software version. Only the Code Index Number can be changed.
    1. From the Programing Menu select Fuel Gauge Calibration and press the Enter key.
    2. The Code Index Number and the Code Version Number are displayed. To change the Code Index Number, press the Modify soft key.
    To exit without making a change, press the Okay soft key.
    3. Use the Up and Down arrow keys to highlight a vehicle type and press the Enter key.
    4. Follow the Tech 2 screen prompts to complete the programming.
    5. Enter the instrument cluster Diagnostic Mode.
    Press the trip computer switch MODE button until the Fuel Calibration Part Number is displayed on the multifunction display (MFD).
    Verify that the Fuel Calibration Part Number displayed is correct.

    Programming the Vehicle Options in to the Instrument Cluster
    Prior to programming the new instrument cluster, obtain the vehicle options from the existing instrument cluster.

  • The following information pertains to the Instrument cluster wiring connector, as used by all VZ Commodore Models

    VZ Commodore Instrument Cluster Wiring Connector

    Pin Wire Colour Circuit No Function
    1 Orange/Yellow 1340 Battery +12 Volts
    2 Brown/White 32 Panel Lamps Supply Voltage
    3     Not Used
    4 Brown/White 419 MIL Control
    5 Light Green/Black 592 DRL Relay Control
    6 Green/White 1061 UART Serial Data (Secondary)
    7     Not Used
    8     Not Used
    9 Orange 192 Fog Lamps Switch Signal
    10     Not Used
    11 Blue 1315 Right Front Turn Signal Lamp Supply Voltage
    12 Blue/Yellow 1969 Headlamp/HighBeam Relay Control
    13 Light Blue 1314 Left Front Turn Signal Lamp Supply Voltage
    14 Light Blue 264 Security Indicator Lamp Supply Voltage
    15 Orange 238 Seat Belt Switch Left
    16     Not Used
    17 Black/Yellow 251 Ground
    18 Brown 897 DIC Switch Low Reference
    19     Not Used
    20 Pink/Blue 539 Battery +12 Volts
    21     Not Used
    22     Not Used
    23     Not Used
    24     Not Used
    25     Not Used
    26 Pink/White 5197 Cruise Control I/P Signal
    27 Brown/Red 121 Engine Speed Signal
    28 Blue/Black 894 DIC Toggle Switch Signal
    29     Not Used
    30 Brown/Orange 33 Brake Warning Indicator Control
    31 Brown/White 4 Accessory Voltage
    32 Grey/White 746 Right Front Door Ajar Switch Signal
  • The Instrument Panel Cluster (IPC) contains a driver information center (DIC) which provides visual information to the driver for a number of vehicle functions such as trip computer, audio functions, warnings and reminders.

    When the ignition is switched to the ON position, a vehicle system check is performed and the status is shown on the Driver Information Center.

    A number of IPC features will be tested in order to verify the features are working correctly. The following occurs at key ON.
  • The supplementary restraint system warning lamp illuminates briefly (not IPC controlled).
  • The anti-lock brake system (ABS) warning lamp illuminates briefly.
  • The charging system warning lamp illuminates briefly.
  • The brake warning lamp illuminates briefly.
  • The malfunction indicator lamp (MIL) illuminates until the engine is running (not IPC controlled).
  • The seat belt warning lamp will stay illuminated until the driver seat belt is latched (not IPC controlled).

    If there are no warnings or service reminders the DIC shows a series of welcome screens.
    If the system check detects a problem, the DIC displays the appropriate warning immediately.
    If a warning is displayed, press the TRIP button to acknowledge it (once for each warning).
    The DIC then reverts to the original trip computer display.
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