Defender. Manual — part 127
DTC Index
• NOTE: If a control module or component is suspect and the vehicle remains under manufacturer warranty, refer to the
Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval program is in operation,
before the replacement of a component.
• 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).
• NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal
places, and with an up-to-date calibration certificate. When testing resistance always take the resistance of the DMM
leads into account.
• NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
• NOTE: Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
• NOTE: If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern
may be the cause. Always check for loose connections and corroded terminals.
• NOTE: For a full list of engine control module (ECM) DTCs:
REFER to:
Electronic Engine Controls
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR (103kW/140PS) -
Puma, Diagnosis and Testing).
DTC
Description
Possible causes
Actions
P004611 Turbocharger
boost control A
circuit
range/performance
- circuit short to
ground
Turbocharger
control
solenoid
circuit: short
circuit to
ground
Turbocharger
fault
Check the turbocharger control solenoid and circuits. Refer to the
electrical guides. Install a new turbocharger if necessary.
REFER to:
Turbocharger
(303-04B Fuel Charging and Controls -
Turbocharger - 2.4L Duratorq-TDCi HPCR (103kW/140PS) - Puma,
Removal and Installation).
Clear the DTCs and test for normal operation.
P004612 Turbocharger
boost control A
circuit
range/performance
- circuit short to
battery
Turbocharger
control
solenoid
circuit: short
circuit to
power
Turbocharger
fault
P00461A Turbocharger
boost control A
circuit
range/performance
- circuit resistance
below threshold
Turbocharger
control
solenoid
circuit: short
circuit to
ground
Turbocharger
control
solenoid
circuit: short
circuit to
power
Turbocharger
control
solenoid
circuit: open
circuit
Turbocharger
fault
Check the turbocharger control solenoid and circuits. Refer to the
electrical guides. Install a new turbocharger if necessary.
REFER to:
Turbocharger
(303-04B Fuel Charging and Controls -
Turbocharger - 2.4L Duratorq-TDCi HPCR (103kW/140PS) - Puma,
Removal and Installation).
Clear the DTCs and test for normal operation.
P00461B Turbocharger
boost control A
circuit
range/performance
- circuit resistance
above threshold
Turbocharger
control
solenoid
circuit: short
circuit to
ground
Turbocharger
control
solenoid
circuit: short
circuit to
power
Turbocharger
control
solenoid
circuit: open
circuit
Turbocharger
fault
P006900 Manifold absolute
pressure (MAP)
sensor -
barometric
pressure
correlation
• NOTE: The MAP
sensor is part of the
manifold absolute
pressure
temperature (MAPT)
sensor
• NOTE: Barometric
pressure sensor is
part of the engine
control module
(ECM)
MAP sensor
circuit: short
circuit to
other pins
MAP sensor
circuit: open
circuit
MAP sensor
fault
Barometric
pressure
sensor fault
Check for related DTCs. Rectify as necessary. Using a data logger
function check the barometric and manifold absolute pressure
readings, both sensors should read approximately atmospheric
pressure (ignition on, engine NOT running). A reading significantly
higher or lower on one sensor would indicate a sensor fault. Install a
new MAPT sensor if necessary.
REFER to:
Manifold Absolute Pressure and Temperature (MAPT) Sensor
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR
(103kW/140PS) - Puma, Removal and Installation).
Clear the DTCs and check for normal operation. Refer to the warranty
policy and procedures manual, if a module is suspect.
P006A00 Manifold absolute
pressure (MAP)
sensor - mass or
volume air flow
correlation
• NOTE: The MAP
sensor is part of the
manifold absolute
pressure
temperature (MAPT)
sensor
Restricted air
intake path
Exhaust gas
recirculation
(EGR) valve
stuck open
Turbocharger
fault
MAP sensor
fault
Mass air flow
(MAF) sensor
fault
Check the intake air path for restrictions. Rectify as necessary. Check
for DTCs indicating an EGR, turbocharger, MAPT or MAF sensor fault.
Rectify as necessary. Clear the DTCs and check for normal operation.
P00952F Intake air
temperature (IAT)
sensor 2 circuit -
signal erratic
• NOTE: The IAT
sensor 2 is part of
the manifold
absolute pressure
temperature (MAPT)
sensor
IAT sensor 2
circuit: open
circuit
IAT sensor
2: short
circuit to
power
IAT sensor
2: short
circuit to
ground
IAT sensor 2
fault
Check the IAT sensor 2 and circuits. Refer to the electrical guides.
Install a new MAPT sensor if necessary.
REFER to:
Manifold Absolute Pressure and Temperature (MAPT) Sensor
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR
(103kW/140PS) - Puma, Removal and Installation).
Clear the DTCs and test for normal operation.
P009511 Intake air
temperature (IAT)
sensor 2 circuit -
circuit short to
ground
• NOTE: The IAT
sensor 2 is part of
the manifold
absolute pressure
temperature (MAPT)
sensor
IAT sensor
2: short
circuit to
ground
IAT sensor 2
fault
Check the IAT sensor 2 and circuits. Refer to the electrical guides.
Install a new MAPT sensor if necessary.
REFER to:
Manifold Absolute Pressure and Temperature (MAPT) Sensor
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR
(103kW/140PS) - Puma, Removal and Installation).
Clear the DTCs and test for normal operation.
P009515 Intake air
temperature (IAT)
sensor 2 circuit -
circuit short to
battery or open
• NOTE: The IAT
sensor 2 is part of
the manifold
absolute pressure
temperature (MAPT)
sensor
IAT sensor
2: open
circuit
IAT sensor
2: short
circuit to
power
IAT sensor 2
fault
Check the IAT sensor 2 and circuits. Refer to the electrical guides.
Install a new MAPT sensor if necessary.
REFER to:
Manifold Absolute Pressure and Temperature (MAPT) Sensor
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR
(103kW/140PS) - Puma, Removal and Installation).
Clear the DTCs and test for normal operation.
P010029 Mass or volume
air flow A circuit -
signal invalid
Restricted air
intake path
Check for
leak between
mass air flow
(MAF) sensor
and
turbocharger
MAF sensor
fault
Turbocharger
fault
Exhaust gas
recirculation
(EGR) valve
fault
Check the intake air system for leaks, restrictions, etc.. Check for
related DTCs. Rectify as necessary. Clear the DTCs and test for normal
operation.
P023400 Turbocharger A
over boost
condition
Turbocharger
circuit fault
Turbocharger
fault
Engine
control
module
(ECM) fault
Check the turbocharger and circuits. Refer to the electrical guides.
Rectify as necessary. Check turbocharger operation, check for sticking
turbocharger vanes etc.. Install a new turbocharger if necessary.
REFER to:
Turbocharger
(303-04B Fuel Charging and Controls -
Turbocharger - 2.4L Duratorq-TDCi HPCR (103kW/140PS) - Puma,
Removal and Installation).
Clear the DTCs and test for normal operation. Refer to the warranty
policy and procedures manual if a module is suspect.
P023521 Turbocharger
boost sensor A
circuit - signal
amplitude less
than minimum
• NOTE: The MAP
sensor is part of the
manifold absolute
pressure
temperature (MAPT)
sensor
MAP sensor
circuit: short
circuit to
other pins
MAP sensor
circuit: open
circuit
MAP sensor
fault
P023522 Turbocharger
boost sensor A
• NOTE: The MAP
sensor is part of the
circuit - signal
amplitude greater
than maximum
manifold absolute
pressure
temperature (MAPT)
sensor
MAP sensor
circuit: short
circuit to
other pins
MAP sensor
circuit: open
circuit
MAP sensor
fault
Check the MAPT sensor and circuit. Refer to the electrical guides.
Install a new MAPT sensor if necessary.
REFER to:
Manifold Absolute Pressure and Temperature (MAPT) Sensor
(303-14 Electronic Engine Controls - 2.4L Duratorq-TDCi HPCR
(103kW/140PS) - Puma, Removal and Installation).
Clear the DTCs and test for normal operation.
P02352F Turbocharger
boost sensor A
circuit - signal
erratic
• NOTE: The MAP
sensor is part of the
manifold absolute
pressure
temperature (MAPT)
sensor
MAP sensor
circuit: short
circuit to
other pins
MAP sensor
circuit: open
circuit
MAP sensor
fault
P029900 Turbocharger A
under boost
condition
Turbocharger
circuit fault
Turbocharger
fault
Engine
control
module
(ECM) fault
Check the turbocharger and circuits. Refer to the electrical guides.
Rectify as necessary. Check turbocharger operation, check for sticking
turbocharger vanes etc. Install a new turbocharger if necessary.
REFER to:
Turbocharger
(303-04B Fuel Charging and Controls -
Turbocharger - 2.4L Duratorq-TDCi HPCR (103kW/140PS) - Puma,
Removal and Installation).
Clear the DTCs and test for normal operation. Refer to the warranty
policy and procedures manual if a module is suspect.
P256234 Turbocharger
boost control
position sensor A
circuit - signal
high time less
than minimum
Turbocharger
boost control
position
sensor A
circuit: short
circuit to
ground
Turbocharger
boost control
position
sensor A
circuit: open
circuit
Turbocharger
fault
P256235 Turbocharger
boost control
position sensor A
circuit - signal
high time greater
than maximum
Turbocharger
boost control
position
sensor A
circuit: short
circuit to
power
Turbocharger
boost control
position
sensor A
circuit: open
circuit
Turbocharger
fault
P256236 Turbocharger
boost control
position sensor A
Turbocharger
boost control
position
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