Published: 11-May-2011

2007.0 Range Rover Sport (LS), 417-01

Exterior Lighting

Autolamps (G830845)

DIAGNOSIS AND TESTING
Overview

The automatic lighting system is only operational when Auto is selected on the lighting control switch

For information on the description and operation of the systems, refer to section 417-01 - Exterior Lighting of the workshop manual.

Inspection and Verification
  1. Verify the customer concern.
  1. Visually inspect for obvious electrical faults.

Visual Inspection Chart

Mechanical Electrical
  • Lighting control switch and installation
  • Rain/Light sensor condition and installation
  • Wiper control switch and installation
  • Fuses
    • Battery junction box (BJB) - link 15E
    • BJB - link 16E
    • BJB - link 11E
    • BJB - link 25E
    • Central junction box (CJB) - Fuse 18P
    • CJB - Fuse 67P
    • CJB - Fuse 62P
  • Relays
    • Automatic headlamps relay
  • Wiring harness
  • Loose or corroded connector(s)
  • Battery junction box (BJB)
  • Central junction box (CJB)
  • Rain/Light sensor control module
  • Local interconnect network (LIN) circuits
  • Controller area network (CAN) circuits
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
      • Because the DTCs are stored in more than one module, a complete vehicle read is recommended
      • Make sure that all DTCs are cleared following rectification
Symptom Chart
SymptomPossible causesAction
Side and headlamp(s) inoperative when the automatic headlamp switch option is selected
  • Fuse(s) blown
  • Lighting control switch fault
  • Wiper control switch fault
  • Circuit fault
  • Rain/Light sensor fault
  • LIN circuit fault
Check the fuse(s) (see visual inspection). Check the lighting and wiper control switch functions. Check the automatic headlamp circuit. Refer to the electrical guides. Check for DTCs indicating a rain/light sensor or LIN system fault.
Automatic headlamp switch illumination inoperative
  • Fuse(s) blown
  • Lighting control switch fault
  • Circuit fault
  • Automatic headlamp relay fault
Check the fuse(s) (see visual inspection). Check the lighting control switch function. Check the automatic headlamp relay circuit. Refer to the electrical guides. Check for DTCs indicating an automatic headlamp fault.
DTC index
NOTE:

Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

DTCDescriptionPossible causesAction
B1A9801LIN Bus Circuit #1
  • LIN Bus short circuit to power or ground
Refer to the guided diagnostic routine for this code on the approved diagnostic system. The LIN Bus is the serial link to the rain sensor, sunroof, memory seat modules which are optional install items, but the control of the DTC logging is determined from the car configuration file (CCF) (installed or not). Repair action only required if one or more items installed and not functioning correctly. Refer to the lost communication statement at the start of this table.
B1A9881LIN Bus Circuit #1
  • Software error
  • Rain/ambient light sensor lost power during transmission
Refer to the guided diagnostic routine for this code on the approved diagnostic system. No repair action necessary unless customer complains of rain sensor, roof opening panel or memory seat not functioning correctly. The LIN Bus is the serial link to the rain sensor, sunroof, memory seat modules which are optional install items, but the control of the DTC logging is determined from the car configuration file (CCF) (installed or not). Repair action only required if one or more items installed and not functioning correctly. Refer to the lost communication statement at the start of this table.
B1A9883LIN Bus Circuit #1
  • LIN Bus check sum error
Refer to the guided diagnostic routine for this code on the approved diagnostic system. The LIN Bus is the serial link to the rain sensor, sunroof, memory seat modules which are optional install items, but the control of the DTC logging is determined from the car configuration file (CCF) (installed or not). Repair action only required if one or more items installed and not functioning correctly. Refer to the lost communication statement at the start of this table.
B1B551CRain Sensor Module
  • Rain sensor module supply voltage out of range
Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the power supply to the sensor module from the CJB, repair as necessary. If the power supply exists, no further action necessary, clear/ignore DTC.
B1B5546Rain Sensor Module
  • Rain sensor module calibration/parameter memory failure:
    • Initialization error - unable to perform optical calibration
Refer to the guided diagnostic routine for this code on the approved diagnostic system. Check the cleanliness of the windscreen in the sensor location. Check for correct installation of the sensor to the optical element and the adherence of the optical element to windscreen. Clear DTC and retest. If DTC persists, renew the rain/ambient light sensor.
B1B5549Rain Sensor Module
  • Internal electronic failure
Check the rain/light sensor module and circuit. Refer to the electrical guides. Refer to the warranty policy and procedures manual if a module is suspect.
B1B5587Rain Sensor Module
  • Missing message
Refer to the guided diagnostic routine for this code on the approved diagnostic system. Rain sensor is not installed to all variants (optional). Fault logging is inhibited by the CCF, but an incorrectly configured CCF could give erroneous DTC logging. Repair action only required for vehicles with sunroof installed. Where necessary refer to the lost communication statement at the start of Communications Module section.
B1B5591Rain Sensor Module
  • Rain sensor module - measured temperature outside of normal operating range
No action necessary, clear/ignore DTC.
B1D3713Wiper Switch Connection Circuit
  • Wiper switch connection circuit open circuit
 Refer to the electrical guides and check the switch circuit, repair/renew as necessary.
B1C8612Autolights Switch Illumination Relay Output
  • Autolamps switch illumination relay output circuit short to power
Where installed, refer to the electrical guides and check the autolamps switch illumination relay circuit, repair/renew as necessary. Where the feature is not installed, check the vehicle configuration and clear/ignore this DTC.
B1C8614Autolights Switch Illumination Relay Output
  • Autolamps switch illumination relay output circuit short to ground or open circuit
Refer to the guided diagnostic routine for this code on the approved diagnostic system. Where installed, refer to the electrical guides and check the autolamps switch illumination relay supply fuse and the relay output circuit, repair as necessary. Where the feature is not installed, check the vehicle configuration and clear/ignore this DTC.
B1D4013Lighting Switch Connection Circuit
  • Lighting switch connection circuit open circuit
 Refer to the guided diagnostic routine for this code on the approved diagnostic system. Refer to the electrical guides and check the switch circuit, repair/renew as necessary.
U1A1449CAN Initialisation Failure
  • Internal electronic failure
Check the power and ground circuits to the component. Refer to the electrical guides. Configure the module(s) using the approved diagnostic system. Refer to the warranty policy and procedures manual if a module is suspect.