Right-hand
front height
sensor, height
changing
slower than
expected
Suspension
prevented from
moving
Height sensor
incorrectly installed
Air spring leak
Air harness leak
Blocked/damaged
air harness
Blocked/damaged
gallery pipe
Corner valve stuck
closed
Front or rear valve
block pipes
incorrectly fitted
(unions reversed)
Reservoir valve
block pipes
incorrectly fitted
(unions reversed)
Reservoir valve
stuck open
Exhaust valve stuck
closed
Corner valve air leak
Pressure sensor
fault
Height sensor failure
Check that the vehicle is free of obstructions. Check the height
sensor for correct fitment and torque of fixings. If any height
sensor fixings are slackened or found to be loose, or a height
sensor has been changed, the vehicle ride height must be re-
calibrated. Calibrate the system using the approved diagnostic
system. Refer to the guided diagnostic routine for this code on
the approved diagnostic system. Check for an air spring leak.
Check the air harness for evidence of melting, crushing, kinking
or collapsing. Check the front and rear valve block pipes for
correct routing and installation. Check the reservoir valve block
pipes for correct routing and installation. Refer to the approved
diagnostic system for corner, reservoir and exhaust valve
checks. Check the corner valve for leaks.
C1A051C
Left-hand rear
height sensor,
signal voltage
out of range
Water ingress to
wiring harness or
connectors
Height sensor
linkage
disconnected
Height sensor
linkage
damaged/bent
Height sensor
disconnected
Height sensor
linkage toggled
Height sensor
bracket
damaged/bent
Height sensor
incorrectly installed
Height sensor
installed on wrong
side of vehicle
Height sensor
harness wiring: short
circuit to ground,
short circuit to
power, high
resistance
Height sensor failure
Incorrect height
calibration
Air suspension
control module
failure
Visually inspect the wiring harness and connectors for water
ingress. Refer to the guided diagnostic routine for this code on
the approved diagnostic system. Check the height sensor
bracket condition and security. Check the height sensor for
correct fitment and torque of fixings. If any height sensor fixings
are slackened or found to be loose, or a height sensor has been
changed, the vehicle ride height must be re-calibrated. Calibrate
the system using the approved diagnostic system. Refer to the
warranty policy and procedures manual if a module is suspect.