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. |
B1C6012 |
Sidelights Relay Output Circuit |
- Side lamps relay output circuit short to power
- Rear tail/brake lamp bulb incorrect spec
- Rear tail/brake lamp bulb fault
|
A bulb fault can also cause DTC B1B0187 to be logged in the
Network Communications Module and DTC C1A5564 to be logged in the Park
Brake Module. A fault in this circuit causing DTC B1C6012 to log could
also cause up shift issues on automatic transmission vehicles. Check the
rear tail/brake lamp bulbs for correct type, installation or faults
including a short circuit of the bulb filaments. Refer to the electrical
guides and check side lamps relay output circuit, repair/renew as
necessary. |
B1C6014 |
Sidelights Relay Output Circuit |
- Rear/License lamp relay output circuit short circuit to ground
- Rear/License lamp relay output circuit high resistance
|
Refer to the guided diagnostic routine for this code on the
approved diagnostic system. |
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. |