
DTC Description Possible Causes Action B124812
Right Rear Turn
Indicator
Right rear turn signal
lamp control circuit -
short to power Refer to the electrical circuit diagrams and check right rear turn
signal lamp control circuit for short to power B124813
Right Rear Turn
Indicator
Right rear turn signal
lamp control circuit -
open circuit Refer to the electrical circuit diagrams and check right rear turn
signal lamp control circuit for open circuit B1248-15
Right Rear Turn
Indicator - circuit
short to battery
or open
Right rear turn signal
lamp control circuit -
short circuit to power,
open circuit, high
resistance
Refer to electrical circuit diagrams and check right rear
turn signal lamp control circuit for short circuit to power,
open circuit, high resistance. Repair wiring harness as
required. Clear DTC and retest B126113
Fuel Flap/Door
Release Switch
Fuel filler flap digital
input signal circuit - open
circuit Refer to the electrical circuit diagrams and check fuel filler flap
digital input signal circuit for open circuit B1A7911 Rear Fog Lamp
Rear fog lamp control
circuit - short to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check rear fog lamp control circuit for short
to ground B1A7912 Rear Fog Lamp
Rear fog lamp control
circuit - short to power Refer to the electrical circuit diagrams and check rear fog lamp
control circuit for short to power B1A7913 Rear Fog Lamp
Rear fog lamp control
circuit - open circuit Refer to the electrical circuit diagrams and check rear fog lamp
control circuit for open circuit B1C5512 Horn Relay
Horn control circuit -
short to power Refer to the electrical circuit diagrams and check horn control
circuit for short to power B1C5514 Horn Relay
Horn control circuit -
short to ground, open
circuit Refer to the electrical circuit diagrams and check horn control
circuit for short to ground, open circuit B1C8312 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to power Refer to the electrical circuit diagrams and check heated rear
window power supply circuit for short to power B1C8314 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is short to ground, open
circuit Refer to the electrical circuit diagrams and check heated rear
window power supply circuit for short to ground, open circuit B1C8393 Rear Defog Relay
High Side output not
driven - diagnosis
feedback indicates output
is at open load or short
to power Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check heated rear window power supply
circuit for open load and short to power B1C9112
Fuel Flap/Door
Lock Relay Coil
Circuit
Fuel filler flap locking
motor control circuit -
short to power Refer to the electrical circuit diagrams and check fuel filler flap
locking motor control circuit for short to power B1C9114
Fuel Flap/Door
Lock Relay Coil
Circuit
Fuel filler flap locking
motor control circuit -
short to ground, open
circuit Refer to the electrical circuit diagrams and check fuel filler flap
locking motor control circuit for short to ground, open circuit B1D3512 Hazard Switch
Hazard warning lamp
switch digital input circuit
- short to power Refer to the electrical circuit diagrams and check hazard warning
lamp switch digital input circuit for short to power

length.
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14.
15. NOTE: See illustration: Stripping Insulation
From the Relationship Table, find the correct length of insulation to be stripped from the pre-terminated wiring harness
and set the adjustable cable length stop to the correct length. Place the pre-terminated wiring harness in the wire
stripper and remove the insulation.
Put the cable identification sleeve(s) on to the wiring harness with the main cable colour nearest to the terminal.
During this next step do not over tighten. Place the selected butt splice connector in the crimping tool, matching the
aperture and the butt connector colours. Make sure that the window indentation in the butt connector is resting over
the guide bar on the lower jaw. Partially close the grip until the butt connector is securely held in the aperture. This will
give support to the butt connector while the pre-terminated wiring harness is inserted into it.
NOTE: See illustration: Splice Correctly Located
Insert the pre-terminated wiring harness into the butt connector and make sure that the wire is against the wire stop.
Close the grip firmly, crimping the lead to the butt connector. When the handles have been completely closed the butt
connector will be freed from the tool as the handles are released. If the handles have not been completely closed then
the jaws will hold the butt connector and it cannot be removed from the tool until the crimp is fully made by closing the
handles completely.
Make sure that the harness cable has been squarely cut and the correct length of insulation removed. If more than one
splice is needed the butt connectors must be not be crimped to the wiring harness at the same distance from the
connector. The splices must be staggered to prevent a bulk of splices in the same area of the wiring harness.
It is preferable to cover the butt splice joint with heat shrink sleeve. This is desirable not essential, except where the
electrical connector is a sealed electrical connector. Use the smaller diameter sleeve for red and blue pre-terminated
wiring harness(s) and the large diameter sleeve for the yellow pre-terminated wiring harness(s). It is advisable to place
the heat shrink over the completed joint but in some instances the sleeve will not pass over the terminal. Check, and if
required, place the correct size sleeve onto the harness cable or pre-terminated wiring harness before crimping the butt
splice to the wiring harness.
Place the harness cable into the butt splice with the splice window over the guide bar. Make sure that the cable harness
wire is against the stop in the butt splice, crimp the butt splice connector to the wiring harness.
Gently pull the harness cables each side of the butt splice to make sure that a secure joint has been made.
WARNING: Do not use a naked flame in areas where fuel or oil have been spilt. Clean the area of residual oil and
fuel and wait until the fuel spill has fully evaporated.
CAUTIONS:
When using a heat source make sure that it is localised and causes no damage to surrounding materials.
Where the repair procedure indicates that a glue lined heat shrink sleeve should be applied, apply sufficient heat
to the glue lined heat shrink to melt the glue in order to provide a water tight seal. Do not over heat the glue lined
heat shrink sleeve so that the wiring harness insulation becomes damaged.
Using a suitable heat source, shrink the sleeve over the butt splice.
If further pre-terminated wiring harness(s) are to be installed to the same electrical connector, make sure that the lead
is cut at a different length to the previous joint. This makes sure that the splices will, where possible, be staggered on
the wiring harness and prevent a bulk of splices in one area.
When all of the splices have been made, fit the terminal(s) to the electrical connector, taking care that the terminals
are correctly orientated.
Install the wiring harness cover and secure with adhesive electrical tape. Do not cover the wiring harness right to the
electrical connector as the terminals must have a little movement and not be firmly bound to the electrical connector or
wiring harness. Make sure that the cable identification sleeve(s) are showing at the wiring harness electrical connector.
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Check the Starter Relay circuit.
NOTE: On petrol engine variants, due to Smart Start, both sides of Relay Coil are switched directly from ECM (If
conditions correct). On diesel engine variants the low side only is switched directly from the ECM.
Check that the Steering Column Lock correctly operates and the steering wheel can turn freely.
Check that the High Speed CAN network is not malfunctioning, i.e. the CAN circuit is open or short circuit. This would mean
that the instrument cluster and ECM would be unable to communicate resulting in no Challenge being performed to enable the
ECM. This would be supported by LED Flash Code 24, see PATS Fault Code Table.
Also check the CAN network between the ABS module and the CJB. The CJB uses the CAN_BrakePressureTMC signal to
determine if the brake pedal has been pressed in order to allow an engine crank. The CJB uses a value of 0x05, if the CJB sees
a value less than this, it will not enable the Crank Request Output.
Engine cranks but will not start
If the Engine is cranking it means that the ECM has passed the authorisation required with the Instrument Cluster. If this
authorisation failed, the ECM would not engage the starter relay. This could be confirmed by verifying the PATS LED prove out
(illuminated solid for 3 seconds) or by reading DTCs from the instrument cluster and ECM.
In this case, the fuel pump circuit should be verified. The Fuel Pump Delivery Module (FPDM), which is supplied via the RJB
(authentication required with the instrument cluster) and controlled by the ECM, supplies the fuel pump.
In all cases of suspected non-start issues, the most logical failure modes should be eliminated first. i.e.
1. Check all relevant supplies and grounds to the relevant modules listed herein.
2. Note any unusual behaviour from other systems/functionality.
3. Note any functions that are not operating as expected.
PATS Fault Codes
For the various PATS modes/faults listed in the table , the instrument cluster will store a DTC and indicate this to the customer
during the detection period defined in the 'when logged' column, by illuminating the indicator as described for 60 seconds and
then flashing the LED 10 times as appropriate. The indication will stop immediately the ignition status is set to OFF any time
during the fault indication sequence. Up to 4 DTCs could be stored per key read sequence (1-10 read attempts). No DTCs will be
stored until all retry attempts are complete. Only the highest priority fault code will be flashed.
To determine the fault code from the LED: The LED will flash initially ten times with 1.5 seconds between. The LED will remain
OFF for 2.5 seconds then flash a number of times with 0.5 seconds between (the number of times the LED flashes represents
the first digit of the code), the LED will remain OFF for 1.5 seconds then flash a number of times with 1.5 seconds between
(the number of times the LED flashes represents the second digit of the code).
The PATS LED will be commanded on as shown under 'indication'. Normal PATS operations are complete within 400ms of the
ignition switch transition from OFF to ON or START, worst case for ECM communication problems will be less than 2 seconds. If
PATS is not complete during the 2 seconds the ECM will terminate PATS and await the next ignition ON or START event. PATS
faults will be indicated via the LED as soon as possible and will terminate the LED prove out. At ignition OFF all previous
flashing will cease and the perimeter anti-theft system will control the LED when the vehicle is locked and armed.
PATS Fault Code Table
Mode of Operation/Fault
When Logged
Ignition
Status
DTC LED
Fault
Code
Indication Prove out N/A Transition
from OFF to
ON N/A N/A
3 Seconds of steady
illumination Perimeter Anti-theft Control N/A OFF -
Vehicle
locked and
armed N/A N/A
Off or 0.5Hz flashing
at 5% duty cycle ±
20% until Off Start Control Unit already programmed Key Insert Any B1B0105 N/A No Indication Start Control Unit status = invalid response Key Insert Any B1B0167 N/A No Indication Start Control Unit programming error Key Insert Any B1B0151 N/A No Indication Start Control Unit challenge response error Key Insert OFF B1B0162 N/A No Indication Key Programming timer expired or Key Auth Timer expired Key Insert Any B1B0187 N/A No Indication Transponder challenge response error Key Insert Any B1B0164 N/A No Indication Transponder keys stored below minimum number required B&A/Dealer Any B1B0100 N/A No Indication Transponder not programmed B&A/Dealer Any B1B0155 N/A No Indication If the instrument cluster sends a 'theft' key status
to the ECM or the ECM returns a status message
containing the data 'Disabled/Theft', the instrument
cluster will set this DTC EMS CAN
communication OFF to ON B1B3364 16
60 seconds of 4Hz
flashing at 50% duty
cycle followed by fault
code 16 flashing 10
times

- Air flow checker
- Sealing compound (tape and plastic compound)
- Multi-purpose sticker
- Clinched flange sealer
- Window sealing compound
- Water shield (PVC)
- Double-sided adhesive tape for water shield
- Methylated spirit (available from trade outlets)
- PU adhesive
- Silicone remover
- Tar remover
Water leaks according to mileage or running time
Increasing mileage has an effect on the problem of leaks in a vehicle. Possible influencing factors are:
Servicing and maintenance of seals:
- No maintenance, lack of maintenance or incorrect maintenance
- Using an incorrect agent
Damaged seals:
- As a result of aging, wear or incorrect handling/assembly.
Heavy soiling of the vehicle:
- Heavy soiling of a vehicle can seriously impair the function of water drainage channels in particular, and also of
rubber seals.
Age-related factors:
- Environmental factors
- UV radiation
- Extreme climatic conditions
Corrosion can have a serious impact on bodywork, in particular as a result of:
- Lightly or heavily rusted seal carriers
- Rusted body seal welds
- Perforation corrosion
Water leaks after body repairs
If a vehicle develops a leak after body repairs, the following points must be taken into consideration in particular:
The correct seating of ancillary components and their seals must be checked.
The correct alignment of doors/tailgate and liftgate must be checked. The associated seals must not be damaged and
must be installed correctly.
Check that panel seams are correctly sealed.
The correct seating of rubber grommets must be checked.
Directly-glazed windows must have correct and complete bonding.
Water drainage system
If a vehicle develops water leaks, then areas into which water is routed or drained should be checked first.