• 54.00 General9
• 54.10 Battery, power supply, voltage converter14
• 54.18 Cable harnesses5
• 54.21 Control units / basic modules8
• 54.22 Diagnostic test coupling/diagnostic socket4
• 54.25 Switches7
• 54.30 Instrument cluster, display instruments, hazard warning device59
• 54.35 Signaling system1
• 54.61 Speed recorder, trip recorder, taximeter14