DTC Description Possible Causes Action sensor malfunction
C1A57-11
Left Front Initiator -
Circuit short to ground
Left front initiator circuit
is short to ground
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test B1 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A57-12
Left Front Initiator -
Circuit short to battery
Left front initiator circuit
is short to power
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test B2 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A57-13
Left Front Initiator -
Circuit open
Left front initiator circuit
open
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test B9 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A58-31
Right Front Tire Pressure
Sensor and Transmitter
Assembly - No signal
Missing, incompatible or
defective tire pressure
sensor or radio frequency
receiver
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test F in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A58-68
Right Front Tire Pressure
Sensor and Transmitter
Assembly - Event
information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire pressure
sensor low battery
voltage event
No action required C1A58-91
Right Front Tire Pressure
Sensor and Transmitter
Assembly - Parametric
Tire pressure sensor has
reported out of range
information for pressure,
temperature or
acceleration
Replace defective tire pressure sensor. refer to
the relevant section of the workshop manual C1A58-93
Right Front Tire Pressure
Sensor and Transmitter
Assembly - No operation
No tire pressure sensor
can be localized at this
position due to an
initiator or tire pressure
sensor malfunction
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test G in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A59-11
Right Front Initiator -
Circuit short to ground
Right front initiator circuit
is short to ground
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test C1 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A59-12
Right Front Initiator -
Circuit short to battery
Right front initiator circuit
is short to power
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test C2 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A59-13
Right Front Initiator -
Circuit open
Right front initiator circuit
open
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test C9 in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A60-31
Left Rear Tire Pressure
Sensor and Transmitter
Assembly - No signal
Missing, incompatible or
defective tire pressure
sensor or radio frequency
receiver
For additional information, refer to: Wheels and
Tires (204-04 Wheels and Tires, Diagnosis and
Testing).Go to pinpoint test F in section 204-04,
Diagnosis and Testing, Wheels and Tires C1A60-68
Left Rear Tire Pressure
Sensor and Transmitter
Assembly - Event
information
Information only - Vehicle
exposed to extreme
temperature environment
and/or tire pressure
sensor low battery
voltage event
No action required
7 Initiators 8 TPMS module 9 Instrument cluster
Tire Pressure Monitoring System (TPMS) System Operation
The controlling software for the Tire Pressure Monitoring System (TPMS) is located within a Tire Pressure Monitoring System
Module. The software detects the following:
When the tire pressure is below the recommended low pressure value - under inflated tire.
The location of the tire on the vehicle that is below the recommended pressure.
Malfunction warning.
The TPMS system comprises:
Tire pressure monitoring system module located below the right-hand front seat.
Tire pressure receiver located near the gear shifter within the floor console.
Two front initiators positioned forward of the wheels and behind the fender splash shields.
Two rear initiators positioned rearward of the wheels and assembled on dedicated brackets located behind the fender
splash shields.
Four sensors, each sensor is integral with a tire valve and located within the tire; the space saver spare wheel is not
fitted with a sensor.
The four initiators are hard wired to the TPMS module. The initiators transmit 125 KHz Low Frequency (LF) signals to the tire
pressure sensors which respond by modifying the mode status within the Radio Frequency (RF) transmission. The 315 or 433
MHz RF signals are detected by the tire pressure receiver which is connected directly to the TPMS module. The received RF
signals from the tire pressure sensors are passed to the TPMS module and contain identification, pressure, temperature and
acceleration information for each wheel and tire.
The TPMS module communicates with the instrument cluster via the medium speed CAN bus to provide the driver with
appropriate warnings. The TPMS module also indicates status or failure of the TPMS or components.
Tire Location and Identification
The TPMS can identify the position of the wheels on the vehicle and assign a received tire pressure sensor identification to a
specific position on the vehicle, for example front left, front right, rear left and rear right. This feature is required because of
the different pressure targets and threshold that could exist between the front and rear tires.
The wheel location is performed automatically by the TPMS module using an 'auto-location' function. This function is fully
automatic and requires no input from the driver. The TPMS module automatically re-learns the position of the wheels on the
vehicle if the tire pressure sensors are replaced or the wheel positions on the vehicle are changed.
The TPMS software can automatically detect, under all operating conditions, the following:
one or more new tire pressure sensors have been fitted
one or more tire pressure sensors have stopped transmitting
TPMS module can reject identifications from tire pressure sensors which do not belong to the vehicle
two 'running' wheels on the vehicle have changed positions.
If a new tire pressure sensor is fitted on any 'running' wheel, the module can learn the new sensor identification automatically
through the tire learn and location process.
The tire-learn and location process is ready to commence when the vehicle has been stationary or traveling at less than 12
mph (20 km/h) for 15 minutes. This is known as 'parking mode'. The learn/locate process requires the vehicle to be driven at
speeds of more than 12 mph (20 km/h) for 15 minutes. If the vehicle speed reduces to below 12 mph (20 km/h), the learn
process timer is suspended until the vehicle speed increases to more than 12 mph (20 km/h), after which time the timer is
resumed. If the vehicle speed remains below 12 mph (20 km/h) for more than 15 minutes, the timer is set to zero and process
starts again.
Low Pressure Monitoring
The tire low pressure sensor transmits by RF (315 MHz or 433 MHz depending on market) signal. These signals contain data
which corresponds to tire low pressure sensor identification, tire pressure, tire temperature, acceleration and tire low pressure
sensor mode.
Each time the vehicle is driven, the tire pressure monitoring system module activates each LF antenna in turn. The
corresponding tire low pressure sensor detects the LF signal and responds by modifying the mode status within the RF
transmission.
The system enters 'parking mode' after the vehicle speed has been less than 20 km/h (12.5 miles/h) for 12 minutes. In parking
mode the tire low pressure sensors transmit a coded signal to the tire pressure monitoring system module once every 13
hours. If the tire pressure decreases by more than 0.06 bar (1 lbf/in²) the tire low pressure sensor will transmit more often as
pressure is lost.
As each wheel responds to the LF signal from the tire pressure monitoring system module, it is assigned a position on the
vehicle and is monitored for the remainder of that drive cycle in that position.
NOTES:
If the control module or a 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 programme is in operation, prior to
the installation of a new module/component.
Generic scan tools may not read the codes listed, or may read only five digit codes. If this is the case, match the five
digits from the scan tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give extra
information read by the manufacturer-approved diagnostic system).
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.
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
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.
DTC Description Possible Cause Action C1A56-31
Left Front Tire Pressure
Sensor and Transmitter
Assembly-no signal
Missing, incompatible or
defective tire low pressure
sensor or radio frequency
receiver GO to Pinpoint Test F. C1A56-68
Left Front Tire Pressure
Sensor and Transmitter
Assembly-event information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire low pressure
sensor low battery voltage
event No action required. C1A56-91
Left Front Tire Pressure
Sensor and Transmitter
Assembly-parametric
Tire low pressure sensor
has reported out of range
information for pressure,
temperature or acceleration Replace defective tire low pressure sensor. Refer to
the relevant section of the workshop manual. C1A56-93
Left Front Tire Pressure
Sensor and Transmitter
Assembly-no operation
No tire low pressure sensor
can be localized at this
position due to an initiator
or tire low pressure sensor
malfunction GO to Pinpoint Test G. C1A57-11
Left Front Initiator-circuit
short to ground
Left front initiator circuit is
short to ground GO to Pinpoint Test B. Refer to Pinpoint test B1 C1A57-12
Left Front Initiator-circuit
short to battery
Left front initiator circuit is
short to power GO to Pinpoint Test B. Go to Pinpoint test B2 C1A57-13
Left Front Initiator-circuit
open
Left front initiator circuit
open GO to Pinpoint Test B. Go to Pinpoint test B9 C1A58-31
Right Front Tire Pressure
Sensor and Transmitter
Assembly-no signal
Missing, incompatible or
defective tire low pressure
sensor or radio frequency
receiver GO to Pinpoint Test F. C1A58-68
Right Front Tire Pressure
Sensor and Transmitter
Assembly-event information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire low pressure
sensor low battery voltage
event No action required.
DTC Description Possible Cause Action C1A58-91
Right Front Tire Pressure
Sensor and Transmitter
Assembly-parametric
Tire low pressure sensor
has reported out of range
information for pressure,
temperature or acceleration Replace defective tire low pressure sensor. refer to
the relevant section of the workshop manual. C1A58-93
Right Front Tire Pressure
Sensor and Transmitter
Assembly-no operation
No tire low pressure sensor
can be localized at this
position due to an initiator
or tire low pressure sensor
malfunction GO to Pinpoint Test G. C1A59-11
Right Front Initiator-circuit
short to ground
Right front initiator circuit
is short to ground GO to Pinpoint Test C. Go to Pinpoint test C1 C1A59-12
Right Front Initiator-circuit
short to battery
Right front initiator circuit
is short to power GO to Pinpoint Test C. Go to Pinpoint test C2 C1A59-13
Right Front Initiator-circuit
open
Right front initiator circuit
open GO to Pinpoint Test C. Go to Pinpoint test C9 C1A60-31
Left Rear Tire Pressure
Sensor and Transmitter
Assembly-no signal
Missing, incompatible or
defective tire low pressure
sensor or radio frequency
receiver GO to Pinpoint Test F. C1A60-68
Left Rear Tire Pressure
Sensor and Transmitter
Assembly-event information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire low pressure
sensor low battery voltage
event No action required. C1A60-91
Left Rear Tire Pressure
Sensor and Transmitter
Assembly-parametric
Tire low pressure sensor
has reported out of range
information for pressure,
temperature or acceleration Replace defective tire low pressure sensor, refer to
the relevant section of the workshop manual. C1A60-93
Left Rear Tire Pressure
Sensor and Transmitter
Assembly-no operation
No tire low pressure sensor
can be localized at this
position due to an initiator
or tire low pressure sensor
malfunction GO to Pinpoint Test G. C1A61-11
Left Rear Initiator-circuit
short to ground
Left rear initiator circuit
short to ground GO to Pinpoint Test D. Go to Pinpoint test D1 C1A61-12
Left Rear Initiator-circuit
short to battery
Left rear initiator circuit
short to power GO to Pinpoint Test D. Go to Pinpoint test D2 C1A61-13
Left Rear Initiator-circuit
open
Left rear initiator circuit
open GO to Pinpoint Test D. Go to Pinpoint test D9 C1A62-31
Right Rear Tire Pressure
Sensor and Transmitter
Assembly-no signal
Missing, incompatible or
defective tire low pressure
sensor or radio frequency
receiver GO to Pinpoint Test F. C1A62-68
Right Rear Tire Pressure
Sensor and Transmitter
Assembly-event information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire low pressure
sensor low battery voltage
event No action required. www.JagDocs.com
B10: CHECK THE INITIATOR CIRCUIT FOR HIGH RESISTANCE 1 Measure the resistance between: C3MC39A, harness side C1MC40, harness side Pin 13 Pin 1 Is the resistance greater than 5 ohms?
Yes
REPAIR the high resistance circuit. This circuit contains
intermediate connector, C13-B. For additional information, refer to
the wiring diagram. Clear the DTC and run an On Demand Self Test
(ODST) using the manufacturer approved diagnostic system to
confirm rectification.
No
INSTALL a new left hand front low-frequency initiator. REFER to:
Tire Pressure Monitoring System (TPMS) Front Antenna (204-04 Wheels and Tires, Removal and Installation).
PINPOINT TEST C : RIGHT FRONT LOW FREQUENCY INITIATOR CIRCUIT TEST CONDITIONS DETAILS/RESULTS/ACTIONS C1: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 1 Ignition off. 2 Disconnect the right hand front low-frequency initiator electrical connector, C1MC41.
3 Measure the resistance between: C1MC41, harness side Battery Pin 2 Negative terminal Is the resistance less than 10,000 ohms?
Yes
GO to C5. No
GO to C2. C2: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 1 Measure the resistance between: C1MC41, harness side Battery Pin 2 Positive terminal Is the resistance less than 10,000 ohms?
Yes
GO to C6. No
GO to C3. C3: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 1 Measure the resistance between: C1MC41, harness side Battery Pin 1 Negative terminal
C10: CHECK THE INITIATOR CIRCUIT FOR HIGH RESISTANCE 1 Measure the resistance between: C3MC39A, harness side C1MC41, harness side Pin 15 Pin 1 Is the resistance greater than 5 ohms?
Yes
REPAIR the high resistance circuit. This circuit contains
intermediate connector, C13-B. For additional information, refer to
the wiring diagram. Clear the DTC and run an On Demand Self Test
(ODST) using the manufacturer approved diagnostic system to
confirm rectification.
No
INSTALL a new right hand front low-frequency initiator. REFER to:
Tire Pressure Monitoring System (TPMS) Front Antenna (204-04 Wheels and Tires, Removal and Installation).
PINPOINT TEST D : LEFT REAR LOW FREQUENCY INITIATOR CIRCUIT TEST CONDITIONS DETAILS/RESULTS/ACTIONS D1: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 1 Ignition off. 2 Disconnect the left hand rear low-frequency initiator electrical connector, C4MC42.
3 Measure the resistance between: C4MC42, harness side Battery Pin 2 Negative terminal Is the resistance less than 10,000 ohms?
Yes
GO to D5. No
GO to D2. D2: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER 1 Measure the resistance between: C4MC42, harness side Battery Pin 2 Positive terminal Is the resistance less than 10,000 ohms?
Yes
GO to D6. No
GO to D3. D3: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO GROUND 1 Measure the resistance between: C4MC42, harness side Battery Pin 1 Negative terminal Is the resistance less than 10,000 ohms?
Yes
GO to D7. No
GO to D4. D4: CHECK THE INITIATOR CIRCUIT FOR SHORT CIRCUIT TO POWER www.JagDocs.com