Workshop Manuals Factory service & repair Land Rover
01 Range Rover Classic - 199502 01 - INTRODUCTION03 04 - GENERAL SPECIFICATION DATA04 05 - ENGINE TUNING DATA05 06 07 - GENERAL FITTING REMINDERS07 09 - LUBRICANTS, FLUIDS AND CAPACITIES08 10 - MAINTENANCE09 12 - ENGINE - Tdi10 11 12 13 12 - ENGINE - V8i14 17 - EMISSION CONTROL15 19 - FUEL SYSTEM - Tdi16 19 - FUEL SYSTEM - MFI17 19 - FUEL SYSTEM - CRUISE CONTROL - V8i18 26 - COOLING SYSTEM - Tdi19 26 - COOLING SYSTEM - V8i20 30 - MANIFOLD AND EXHAUST SYSTEM21 33 - CLUTCH22 37 - MANUAL GEARBOX - R38023 41 - TRANSFER GEARBOX - BORG WARNER24 25 44 - AUTOMATIC GEARBOX - ZF26 27 28 47 - PROPELLER SHAFTS29 51 - REAR AXLE AND FINAL DRIVE30 31 54 - FRONT AXLE AND FINAL DRIVE32 33 34 57 - STEERING35 36 37 60 - FRONT SUSPENSION38 64 - REAR SUSPENSION39 68 - AIR SUSPENSION40 70 - BRAKES - NON ABS41 70 - BRAKES - ABS42 70 - BRAKES - ELECTRONIC TRACTION CONTROL43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 74 - WHEELS AND TYRES59 75 - SUPPLEMENTARY RESTRAINT SYSTEM60 76 - CHASSIS AND BODY61 62 63 64 80 - HEATING AND VENTILATION65 82 - AIR CONDITIONING66 84 - WIPERS AND WASHERS67 86 - ELECTRICAL
Land Rover Range Rover Classic42 · 70 - BRAKES - ELECTRONIC TRACTION CONTROL
42 · Brakes

FAULT DIAGNOSIS PROCEDURE

Make
Land Rover
Model
Range Rover Classic
Section
FAULT DIAGNOSIS › FAULT DIAGNOSIS PROCEDURE
70 - BRAKES - ELECTRONIC TRACTION CONTROLFAULT DIAGNOSIS PROCEDURE
background image

70

BRAKES

2

FAULT DIAGNOSIS

ABS FAULT DIAGNOSIS

If a fault has occurred, or has been identified by ECU
self diagnostic function and ABS warning light is
illuminated, system and components must be checked
to locate and rectify fault using Testbook diagnostics.

NOTE: If warning lamp has indicated a
fault in system, and no fault code has been
stored in memory, cause of fault is:

a)

Failure in electrical supply

b)

Loss of hydraulic pressure

c)

Faulty pressure switch

d)

Bad ECU ground

e)

Faulty warning light relay

f)

System not fully charged before driving away

g)

ECU not connected

Before commencing fault diagnosis procedure the
following items must be checked:

1. Inspect all exposed cables for damage or

abrasion.

2. Check ground on ABS system.
3. Battery - state of charge.
4. Fluid level in reservoir.
5. All ABS fuses and electrical connections.
6. Check hub end-float.

Refer to the Electrical Troubleshooting Manual -
D1.

Fault rectification

1. Complete harness must be replaced if faults are

found in wiring harness.

2. DO NOT use unspecified cables or connectors,

as this could jeopardise safe function of ABS.

3. DO NOT attempt to open sealed 35 way

connector to ECU.

FAULT DIAGNOSIS PROCEDURE

NOTE: If ABS warning light illuminates due
to large sensor air gap, fault will be
retained by the ECU memory. Where wheel

sensors have been pushed fully home prior to
test, blink code will indicate a fault that has been
rectified.

NOTE: After any steering adjustment,
bearing replacement/adjustment, brake
disc replacement: Check hub end-float and

sensor clearance.

Parts & tools for this job For Land Rover Range Rover

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.