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.