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