87B-390
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V9 MR-372-J84-87B000$990.mif
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP 55"Tyre sensor fault" message appears
(4 wheel warning lights disappear)
NOTESCheck that all the faulty tyres are fitted with tyre pressure monitor valves.
Are the wheels fitted with tyre pressure
monitor valves?Either install tyre pressure monitor valves, or
deconfigure tyre pressure monitor in the
instrument panel.
Check the tyre pressure monitor configuration
in the UCH (LC017 Tyre pressure monitor
function).
Is the UCH configured "with" the tyre
pressure monitor function?Configure the UCH with the tyre pressure monitor
function using command CF023 Tyre pressure
monitor function under SC008 UCH type.
Program the four valve codes with command
SC002 Program the 4 valve codes. Have the valve codes been programmed?
Check that the ABS is transmitting the vehicle
speed (PR008 Vehicle speed).
Is there an ABS fault?Run full fault finding on the ABS.
UCH fault, contact Techline.
NO
YES
NO
YES
NO
YES
YES
NO
UCH_V44_ALP55 / UCH_V48_ALP55 / UCH_V4C_ALP55 / UCH_V4D_ALP55 / UCH_V4F_ALP55 / UCH_V50_ALP55
