Range Rover (LP) V8-4.0L (1999)
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Trailer Connector: Description and Operation
TRAILER AUXILIARY SOCKET
CIRCUIT OPERATION
Accommodation within the system has been made for the addition of a trailer lighting system to consist of 2 side lamps, 2 fog lamps, 2 reverse lamps, 2
brake lamps, 1 LH indicator and 1 RH indicator. In addition to these loads, there is also a provision for a 10 amp battery feed to the trailer.
Bulb Failure Diagnosis With Trailer
The diagnosis of external bulb failures will be modified by the presence of a trailer as follows:
Brake lamps
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Diagnosis of the RH vehicle and trailer lamps will only detect a failure of all the filaments.
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Diagnosis of the LH vehicle brake light is unaffected.
Rear side lamps
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Diagnosis of the LH rear side lamps will only detect the failure of both the vehicle filament and the trailer filament.
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Diagnosis of the RH rear side lamps will only detect the failure of both the vehicle filament and the trailer filament.
Reverse lamps
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Diagnosis of the RH vehicle reverse light and the LH and RH trailer reverse lamps will only detect failure of all of the filaments.
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Diagnosis of the LH vehicle reverse light is unaffected.
Fog lamps
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Diagnosis of the RH vehicle rear fog light and the LH and RH trailer fog lamps will only detect failure of all of the filaments.
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Diagnosis of the LH vehicle rear fog light is unaffected.
Direction indicators
The indicator warning lamp and trailer warning lamp will diagnose the status of the vehicle s rear filaments, and trailer direction indicator filaments
according to the above table.
In the case of hazard light operation with trailer lamps fitted, the failure of a trailer direction indicator light will cause the trailer warning light to flash at
double rate, while the direction indicator light will flash at the "standard" rate.