Changes

=== ALDL ===

=== ALDL ===

The VT/VX/VY/VZ Commodores have a '''primary serial bus''', and an optional '''auxiliary serial bus'''. The BCM is the bus master of the primary serial bus. Vehicles equipped with a ''High'' or ''Lux'' level BCM feature an auxiliary serial bus for the purpose of isolating ancillary modules such as the climate control module and the radio from the power-train. Vehicles without an auxiliary serial bus place the radio on the primary bus with the PCM, ABS and SRS modules. The primary serial bus can usually be identified as a ''red'' wire with a ''black stripe'' whilst the auxiliary serial bus can usually be identified as a ''green'' wire with a ''white stripe''. The BCMs on VT/VX/VY/VZ Commodores can be controlled via ALDL using Mode 4 commands. The BCM on these models is addressed on the ALDL bus using message ID <code>F1</code>. The table below lists just some of the commands that can be issued to a BCM over ALDL.<ref>[https://www.carmodder.com/viewtopic.php?f=806&t=19529&start=44#p23577 www.carmodder.com - GM ALDL Logging and Scanning]</ref>

The VT/VX/VY/VZ Commodores have a '''primary serial bus''', and an optional '''auxiliary serial bus'''. The BCM is the bus master of the primary serial bus. Vehicles equipped with a ''High'' or ''Lux'' level BCM feature an auxiliary serial bus for the purpose of isolating ancillary modules such as the climate control module and the radio from the power-train. Vehicles without an auxiliary serial bus place the radio on the primary bus with the PCM, ABS and SRS modules. The primary serial bus can usually be identified as a ''red'' wire with a ''black stripe'' whilst the auxiliary serial bus can usually be identified as a ''green'' wire with a ''white stripe''. The BCMs on VT/VX/VY/VZ Commodores can be controlled via [[Holden:ALDL|ALDL]] using Mode 4 commands. The BCM on these models is addressed on the ALDL bus using message ID <code>F1</code>. The table below lists just some of the commands that can be issued to a BCM over ALDL.<ref>[https://www.carmodder.com/viewtopic.php?f=806&t=19529&start=44#p23577 www.carmodder.com - GM ALDL Logging and Scanning]</ref>

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