Frelander 2. Manual — part 30
General Information - Diagnostic Trouble Code (DTC) IndexDTC: Rear
Differential Control Module (RDCM)
Description and Operation
• 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. W hen 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.
Description And Operation
For a detailed description of the rear differential system, refer to the relevant Description and Operation section in the
workshop manual.
For additional information, refer to:
Rear Drive Axle and Differential
(205-02 Rear Drive Axle/Differential, Description and
Operation).
DTC
Description
Possible Cause
Action
P0560-17 System Voltage - circuit
voltage above threshold
Differential Electronic
Module (DEM) supply
circuit voltage above
threshold
Check vehicle battery and charging system,
repair as required. Refer to the relevant
section in the workshop manual. Refer to the
electrical circuit diagrams and check the
power and ground supply circuits to the
Differential Electronic Module (DEM). Clear
the DTC and re-test.
P0602-54 Powertrain Control Module
Programming Error - missing
calibration
Differential Electronic
Module (DEM)
programming error
Differential Electronic
Module (DEM) internal
failure
Using the manufacturer approved diagnostic
system check and install latest level of
software to the Differential Electronic Module
(DEM). Clear the DTC and re-test.
Check and install a new Differential
Electronic Module (DEM) as required. Refer to
the W arranty Policy and Procedures manual,
or determine if any prior approval programme
is in operation, prior to the installation of a
new module/component.
P0607-49 Control Module Performance
- internal electronic failure
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0666-11 PCM / ECM / TCM Internal
Temperature Sensor Circuit -
circuit short to ground
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0666-15 PCM / ECM / TCM Internal
Temperature Sensor Circuit -
circuit short to battery or
open
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0667-27 PCM / ECM / TCM Internal
Temperature Sensor
Range/Performance - signal
rate of change above
threshold - signal rate of
change above threshold
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0748-14 Pressure Control Solenoid A
Electrical - circuit short to
ground or open
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
DTC
Description
Possible Cause
Action
the installation of a new module/component.
P0748-1D Pressure Control Solenoid A
Electrical - circuit current out
of range
Differential Electronic
Module (DEM) internal
failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0932-11 Hydraulic Pressure Sensor
Circuit - circuit short to
ground
Internal oil pressure
sensor connector fault
Internal oil pressure
sensor failure
Differential Electronic
Module (DEM) internal
failure
Remove the Differential Electronic Module
(DEM) and check the internal oil pressure
sensor connection. Repair as required.
Check and install a new internal oil pressure
sensor as required.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0932-15 Hydraulic Pressure Sensor
Circuit - circuit short to
battery or open
Internal oil pressure
sensor connector fault
Internal oil pressure
sensor failure
Differential Electronic
Module (DEM) internal
failure
Remove the Differential Electronic Module
(DEM) and check the internal oil pressure
sensor connection. Repair as required.
Check and install a new internal oil pressure
sensor as required.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0937-11 Hydraulic Oil Temperature
Sensor Circuit - circuit short
to ground
Internal oil
temperature sensor
connector fault
Internal oil
temperature sensor
failure
Differential Electronic
Module (DEM) internal
failure
Remove the Differential Electronic Module
(DEM) and check the internal oil temperature
sensor connection. Repair as required.
Check and install a new internal oil
temperature sensor as required.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0937-15 Hydraulic Oil Temperature
Sensor Circuit - circuit short
to battery or open
Internal oil
temperature sensor
connector fault
Internal oil
temperature sensor
failure
Differential Electronic
Module (DEM) internal
failure
Remove the Differential Electronic Module
(DEM) and check the internal oil temperature
sensor connection. Repair as required.
Check and install a new internal oil
temperature sensor as required.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0938-27 Hydraulic Oil Temperature
Sensor Range/Performance-
signal rate of change above
threshold
Internal oil
temperature sensor
connector fault
Internal oil
temperature sensor
failure
Differential Electronic
Module (DEM) internal
failure
Remove the Differential Electronic Module
(DEM) and check the internal oil temperature
sensor connection. Repair as required.
Check and install a new internal oil
temperature sensor as required.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P0961-62 Pressure Control Solenoid A
Control Circuit
Range/Performance - signal
compare failure
Differential Electronic
Module (DEM) internal
failure
Differential coupling
assembly failure
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
Clear the DTC and re-test. Check and install
a new differential coupling assembly as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
DTC
Description
Possible Cause
Action
P1889-12 Oil Pressure Pump
Performance -circuit short to
battery
Oil pressure feeder
pump circuit short to
power
Oil pressure feeder
pump internal failure
Differential Electronic
Module (DEM) internal
failure
Refer to the electrical circuit diagrams and
check oil pressure feeder pump circuit for
short to power.
Clear the DTC and re-test. Check and install
a new oil pressure feeder pump as required.
Refer to the W arranty Policy and Procedures
manual, or determine if any prior approval
programme is in operation, prior to the
installation of a new module/component.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P1889-14 Oil Pressure Pump
Performance- circuit short to
ground or open
Oil pressure feeder
pump circuit short to
ground, open circuit
Oil pressure feeder
pump internal failure
Differential Electronic
Module (DEM) internal
failure
Refer to the electrical circuit diagrams and
check oil pressure feeder pump circuit for
short to ground, open circuit.
Clear the DTC and re-test. Check and install
a new oil pressure feeder pump as required.
Refer to the W arranty Policy and Procedures
manual, or determine if any prior approval
programme is in operation, prior to the
installation of a new module/component.
Clear the DTC and re-test. Check and install
a new Differential Electronic Module (DEM) as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P1889-49 Oil Pressure Pump
Performance - internal
electronic failure
Oil pressure feeder
pump internal failure
Clear the DTC and re-test. Check and install
a new oil pressure feeder pump as required.
Refer to the W arranty Policy and Procedures
manual, or determine if any prior approval
programme is in operation, prior to the
installation of a new module/component.
P1889-74 Oil Pressure Pump
Performance - actuator
slipping
Oil pressure feeder
pump harness short to
ground, short to
power, open circuit
Oil pressure feeder
pump internal failure
Differential coupling
assembly failure
Refer to the electrical circuit diagrams and
check oil pressure feeder pump harness for
short to ground, short to power, open circuit.
Clear the DTC and re-test. Check and install
a new oil pressure feeder pump as required.
Refer to the W arranty Policy and Procedures
manual, or determine if any prior approval
programme is in operation, prior to the
installation of a new module/component.
Clear the DTC and re-test. Check and install
a new differential coupling assembly as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
P188A-68 Differential Oil Temperature
Too High/Too Low - event
information
Differential oil
temperature too high
Internal oil
temperature sensor
connector fault
Internal oil
temperature sensor
connector fault
Differential Electronic
Module (DEM) internal
failure
Differential coupling
assembly failure
Allow differential coupling assembly to cool.
Consider the ambient temperature. Clear the
DTC and re-test.
Remove the Differential Electronic Module
(DEM) and check the internal oil temperature
sensor connection. Repair as required.
Check and install a new internal oil
temperature sensor as required.
Check and install a new Differential
Electronic Module (DEM) as required. Refer to
the W arranty Policy and Procedures manual,
or determine if any prior approval programme
is in operation, prior to the installation of a
new module/component.
Clear the DTC and re-test. Check and install
a new differential coupling assembly as
required. Refer to the Warranty Policy and
Procedures manual, or determine if any prior
approval programme is in operation, prior to
the installation of a new module/component.
U0001-00 High Speed CAN
Communication Bus - no sub
type information
High speed CAN
communication bus
short to ground, short
to power, open circuit
Using the manufacturer approved diagnostic
system, complete a CAN network integrity
test. Refer to the electrical circuit diagrams
and check the CAN network for short to
ground, short to power, open circuit.
DTC
Description
Possible Cause
Action
U0100-00 Lost Communication W ith
ECM/PCM "A" - no sub type
information
Lost communication
with Engine Control
Module (ECM)
Refer to the electrical circuit diagrams and
check the power and ground circuits to the
Engine Control Module (ECM). Using the
manufacturer approved diagnostic system,
complete a CAN network integrity test. Refer
to the electrical circuit diagrams and check
the CAN network between the All Terrain
Control Module (ATCM) and Differential
Electronic Module (DEM).
U0121-00 Lost Communication W ith
Anti-Lock Brake System
(ABS) Control Module - no
sub type information
Lost communication
with Anti-Lock Brake
System (ABS) module
Refer to the electrical circuit diagrams and
check the power and ground circuits to the
Anti-Lock Brake System (ABS) module. Using
the manufacturer approved diagnostic
system, complete a CAN network integrity
test. Refer to the electrical circuit diagrams
and check the CAN network between the All
Terrain Control Module (ATCM) and
Differential Electronic Module (DEM).
U0138-00 Lost Communication with All
Terrain Control Module - no
sub type information
Lost communication
with All Terrain Control
Module (ATCM)
Refer to the electrical circuit diagrams and
check the power and ground circuits to the
All Terrain Control Module (ATCM). Using the
manufacturer approved diagnostic system,
complete a CAN network integrity test. Refer
to the electrical circuit diagrams and check
the CAN network between the All Terrain
Control Module (ATCM) and Differential
Electronic Module (DEM).
U0140-00 Lost Communication W ith
Body Control Module - no
sub type information
Lost communication
with Central Junction
Box (CJB)
Refer to the electrical circuit diagrams and
check the power and ground circuits to the
Central Junction Box (CJB). Using the
manufacturer approved diagnostic system,
complete a CAN network integrity test. Refer
to the electrical circuit diagrams and check
the CAN network between the Central
Junction Box (CJB) and Differential Electronic
Module (DEM).
U0300-00 Internal Control Module
Software Incompatibility - no
sub type information
High speed CAN
communication bus
circuit problem
Invalid configuration
message is received
Using the manufacturer approved diagnostic
system, complete a CAN network integrity
test. Refer to the electrical circuit diagrams
and check the CAN network to the
Differential Electronic Module (DEM).
Refer to the electrical circuit diagrams and
check the power and ground circuits to the
module. Using the manufacturer approved
diagnostic system, complete a CAN network
integrity test. Refer to the electrical circuit
diagrams and check the CAN network
between the Central Junction Box (CJB) and
Differential Electronic Module (DEM). Clear
the DTC and re-test.
U0300-4A Internal Control Module
Software Incompatibility -
incorrect component
installed
Differential Electronic
Module (DEM) missing
calibration, corrupt
software
Incorrect Differential
Electronic Module
(DEM) installed to
vehicle
Using the manufacturer approved diagnostic
system check and install latest relevant level
of software to the Differential Electronic
Module (DEM). Clear the DTC and re-test.
Check and ensure the correct Differential
Electronic Module (DEM) is installed. Check
and install a new Differential Electronic
Module (DEM) as required. Refer to the
W arranty Policy and Procedures manual, or
determine if any prior approval programme is
in operation, prior to the installation of a
new module/component.
U0401-68 Invalid Data Received From
ECM/PCM - event information
Invalid data received
Check Engine Control Module (ECM) for
related DTCs and refer to the relevant DTC
Index. Clear the DTC and re-test.
U0415-00 Invalid Data Received From
Anti-Lock Brake System
(ABS) Control Module - no
sub type information
Invalid data received
from Anti-Lock Braking
System (ABS) module
Check Anti Lock Braking System (ABS)
module for related DTCs and refer to the
relevant DTC Index. Clear the DTC and
re-test.
U0418-68 Invalid Data Received From
Brake System Control Module
- event information
Invalid data received
from Anti-Lock Braking
System (ABS) module
Check Anti Lock Braking System (ABS)
module for related DTCs and refer to the
relevant DTC Index. Clear the DTC and
re-test.
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