Workshop Manuals Factory service & repair Land Rover
01 Range Rover 2002MY ON Workshop Manual - System Description and Operation - LM - 6th Edition - NAS02 03 04 05 06 07 08 09 ENGINE - V810 11 12 ENGINE MANAGEMENT SYSTEM – V813 14 FUEL DELIVERY SYSTEM – V815 16 17 18 19 20 COOLING SYSTEM – V821 22 MANIFOLDS AND EXHAUST SYSTEM – V823 TRANSFER BOX24 AUTOMATIC TRANSMISSION – ZF 5HP2425 26 DRIVE AND PROPELLER SHAFTS27 28 FINAL DRIVE29 STEERING30 31 SUSPENSION32 33 34 35 BRAKES36 37 38 RESTRAINT SYSTEMS39 40 41 DOORS42 INTERIOR TRIM COMPONENTS43 44 45 SCREENS46 SEATS47 48 SUNROOF49 50 AIR CONDITIONING51 52 53 54 55 56 57 WIPERS AND WASHERS58 59 CHARGING AND STARTING60 61 62 63 64 LIGHTING65 66 BODY CONTROL UNIT67 68 COMMUNICATION DATA BUSES69 70 71 SECURITY72 WINDOWS73 74 75 ENTERTAINMENT AND INFORMATION SYSTEMS76 DRIVING AIDS77 78 INSTRUMENTS
Land Rover L322 Range Rover System Description and Operation76 · DRIVING AIDS
76 · General

Diagnostics

Make
Land Rover
Model
Range Rover L322 Range Rover System Description and Operation
Section
Operation › Diagnostics
DRIVING AIDSDiagnostics
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DRIVING AIDS

DESCRIPTION AND OPERATION 86-10-7

The PDC ECU software incorporates routines that compensate for the effect of ice, frost and rain on the acoustic 
sensors. Ice compensation occurs if the ambient temperature is less than 6 

°

C (43 

°

F).

Diagnostics
The PDC ECU performs self check routines and checks the system wiring for short and open circuits. While the 
system is active the PDC ECU also monitors the data from the acoustic sensors.

If a fault is detected, a related fault code is stored in the non volatile memory of the PDC ECU and either the front 
sensors, the rear sensors or the complete system is disabled, as appropriate. To advise the driver of the failure, the 
PDC ECU flashes the indicator LED at 2 Hz and sounds a continuous warning tone for 3 seconds, in place of the 
normal short tone, when the system is activated.

Fault codes can be accessed using TestBook/T4, which communicates with the PDC ECU via the instrument pack 
and the I bus.

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