DTC |
Description |
Possible causes |
Action |
B1A9801 |
LIN 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. |
B1A9881 |
LIN 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. |
B1A9883 |
LIN Bus Circuit #1 |
|
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. |
B1B551C |
Rain 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.
|
B1B5546 |
Rain 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. |
B1B5549 |
Rain 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. |
B1B5587 |
Rain Sensor Module |
|
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. |
B1B5591 |
Rain Sensor Module |
- Rain sensor module - measured temperature outside of normal
operating range
|
No action necessary, clear/ignore DTC. |
B1D3713 |
Wiper Switch Connection Circuit |
- Wiper switch connection circuit open circuit
|
Refer to the electrical guides and check the switch circuit,
repair/renew as necessary. |
B1C8612 |
Autolights 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. |
B1C8614 |
Autolights 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.
|
B1D4013 |
Lighting 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. |
U1A1449 |
CAN 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. |