Table of contents: Battery will not hold a charge for…🠇 Ignition/no-charge warning light…🠇 Ignition/no-charge warning light…🠇 Lights inoperative 🠇 Instrument readings inaccurate or…🠇 Horn inoperative, or unsatisfactory…🠇 Windscreen/tailgate wipers failed,…🠇 Windscreen/tailgate washers failed,…🠇 Electric windows inoperative, or…🠇 Central locking system inoperative,…🠇
Note: For problems associated with the starting system, refer to the faults listed under "Engine" earlier in this Section.
Battery will not hold a charge for more than a few days
- Battery defective internally (Chapter 5A).
- Battery terminal connections loose or corroded ("Weekly Checks").
- Auxiliary drivebelt worn or incorrectly adjusted (Chapter 1A or 1B).
- Alternator not charging at correct output (Chapter 5A).
- Alternator or voltage regulator faulty (Chapter 5A).
- Short-circuit causing continual battery drain (Chapters 5A and 12).
Ignition/no-charge warning light stays on with engine running
- Auxiliary drivebelt broken, worn, or incorrectly adjusted (Chapter 1A or 1B).
- Alternator brushes worn, sticking, or dirty (Chapter 5A).
- Alternator brush springs weak or broken (Chapter 5A).
- Internal fault in alternator or voltage regulator (Chapter 5A).
- Broken, disconnected, or loose wiring in charging circuit (Chapter 5A).
Ignition/no-charge warning light fails to come on
- Warning light bulb blown (Chapter 12).
- Broken, disconnected, or loose wiring in warning light circuit (Chapter 12).
- Alternator faulty (Chapter 5A).
Lights inoperative
- Bulb blown (Chapter 12).
- Corrosion of bulb or bulbholder contacts (Chapter 12).
- Blown fuse (Chapter 12).
- Faulty relay (Chapter 12).
- Broken, loose, or disconnected wiring (Chapter 12).
- Faulty switch (Chapter 12).
Instrument readings inaccurate or erratic
Instrument readings increase with engine speed
- Faulty voltage regulator (Chapter 12).
Fuel or temperature gauges give no reading
- Faulty gauge sender unit (Chapters 3 and 4A, 4B, 4C or 4D).
- Wiring open-circuit (Chapter 12).
- Faulty gauge (Chapter 12).
Fuel or temperature gauges give continuous maximum reading
- Faulty gauge sender unit (Chapters 3 and 4A, 4B, 4C or 4D).
- Wiring short-circuit (Chapter 12).
- Faulty gauge (Chapter 12).
Horn inoperative, or unsatisfactory in operation
Horn operates all the time
- Horn push either earthed or stuck down (Chapter 12).
- Horn cable-to-horn push earthed (Chapter 12).
Horn fails to operate
- Blown fuse (Chapter 12).
- Cable or cable connections loose, broken or disconnected (Chapter 12).
- Faulty horn (Chapter 12)
Horn emits intermittent or unsatisfactory sound
- Cable connections loose (Chapter 12).
- Horn mountings loose (Chapter 12).
- Faulty horn (Chapter 12).
Windscreen/tailgate wipers failed, or unsatisfactory in operation
Wipers fail to operate, or operate very slowly
- Wiper blades stuck to screen, or linkage seized or binding (Chapter 12).
- Blown fuse (Chapter 12).
- Cable or cable connections loose, broken or disconnected (Chapter 12).
- Faulty relay (Chapter 12).
- Faulty wiper motor (Chapter 12).
Wiper blades sweep over too large or too small an area of the glass
- Wiper arms incorrectly positioned on spindles.
- Excessive wear of wiper linkage (Chapter 12).
- Wiper motor or linkage mountings loose or insecure (Chapter 12).
Wiper blades fail to clean the glass effectively
- Wiper blade rubbers worn or perished ("Weekly Checks").
- Wiper arm tension springs broken, or arm pivots seized (Chapter 12).
- Insufficient windscreen washer additive to adequately remove road film ("Weekly Checks").
Windscreen/tailgate washers failed, or unsatisfactory in operation
One or more washer jets inoperative
- Blocked washer jet.
- Disconnected, kinked or restricted fluid hose (Chapter 12).
- Insufficient fluid in washer reservoir ("Weekly Checks").
Washer pump fails to operate
- Broken or disconnected wiring or connections (Chapter 12).
- Blown fuse (Chapter 12).
- Faulty washer switch (Chapter 12).
- Faulty washer pump (Chapter 12).
Washer pump runs for some time before fluid is emitted from jets
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- Faulty one-way valve in fluid supply hose (Chapter 12).
Electric windows inoperative, or unsatisfactory in operation
Window glass will only move in one direction
- Faulty switch (Chapter 12).
Window glass slow to move
- Regulator seized or damaged, or in need of lubricant (Chapter 11).
- Door internal components or trim fouling regulator (Chapter 11).
- Faulty motor (Chapter 11).
Window glass fails to move
- Blown fuse (Chapter 12).
- Faulty relay (Chapter 12).
- Broken or disconnected wiring or connections (Chapter 12).
- Faulty motor (Chapter 11).
Central locking system inoperative, or unsatisfactory in operation
Complete system failure
- Blown fuse (Chapter 12).
- Faulty relay (Chapter 12).
- Broken or disconnected wiring or connections (Chapter 12).
- Faulty control unit (Chapter 11).
Latch locks but will not unlock, or unlocks but will not lock
- Faulty master switch (Chapter 12).
- Broken or disconnected latch operating rods or levers (Chapter 11).
- Faulty relay (Chapter 12).
- Faulty control unit (Chapter 11).
One solenoid/motor fails to operate
- Broken or disconnected wiring or connections (Chapter 12).
- Faulty solenoid/motor (Chapter 11).
- Broken, binding or disconnected latch operating rods or levers (Chapter 11).
- Fault in door latch (Chapter 11).