|
|
REAR SUSPENSION DESCRIPTION AND OPERATION 64-19 Failure modes Height sensors Door Switch Inputs SLS off-road mode switch Air supply unit air control valves Air supply unit compressor 5 Right height sensor earth Input 6 Right height sensor signal Input C0655 1 Driver's door switch Input 2 Passenger and tail door switches Input 3 Left air valve Output 4 Right air valve Output 5 Exhaust valve Output 6 Air compressor (SLS relay) Output 7 Audible warning Output 8 SLS warning lamp Output 11 ORM switch/ORM warning lamp Input/Output 12 Remote handset raise/lower signal Input Connectors and pins not listed are either not used or used by the brakes system. BRAKES, DESCRIPTION AND OPERATION, Description. Failure Effect Sensor output stuck at 5 V Vehicle will not level Sensor output stuck at 0 V Vehicle will not level Mechanical link between radius arm and sensor broken Vehicle will not level Failure Effect Harness leads for open doors are are broken or shorted to Air suspension levels when one or more doors are open Harness leads to door(s) shorted to earth Air suspension will not level Failure Effect Fault in wiring harness Off-road mode cannot be selected Failure of off-road mode switch Off-road mode is activated when switch has not been Failure Effect Valves open or short circuit Vehicle does not level or levels unevenly Failure Effect Faulty relay, harness fault or compressor fault Vehicle does not level upwards |