SSANGYONG Rexton 2004 Service Manual page 1007

TROUBLE DIAGNOSIS
When Faults Occur, First Check...
• Faulty wiring?
(short circuits, interruptions)
• Visual check for
- corroded contacts
- defect fuses
- damaged electrical leads, links and connections
- damaged exhaust and combustion air guidance
• Check battery voltage
Battery voltage < 10 volt: the undervoltage protection
has triggered
• Check fuel supply
Check Voltage Supply U
Disconnect the 10-pin connector and measure the voltage
present in connector between chamber 1 and chamber 2.
For deviations in the battery voltage, check the fuses, sup-
ply lines, ground connection and plus point on battery for
loss of voltage (corrosion / interruption).
Check Key-ON signal (D+)
Disconnect the 10-pin connector and measure the voltage
present in connector 1 between chamber 6 and chamber 2.
Notice
Heater operating conditions
• Ambient temperature: below 5°C
• Engine coolant temperature: below 75°C
FFH/PTC SYSTEM
REXTON SM - 2004.4
(terminal 30)
batt
Controller Lock
• The controller is locked when the following faults occur:
Overheating
• If FFH overheats 10 times in succession, error code
015 appears and the controller is locked.
Too many start attempts
If FFH performs 10 start attempts in vain, error code 050
appears and the controller is locked.
Cancel the Controller Lock
Canceling the controller lock depends on the correspond-
ing testing equipment and is described in Diagnosis In-
strument section.
Testing Equipment
The electronic controller of FFH can save up to 5 errors.
The errors can be read and displayed from the controller
using one of the following items of equipment. In addition,
the controller lock can be cancelled.
Diagnosis instrument
After connecting the diagnosis instrument, the function or
error is shown numerically in the display. For connection
and handling of the diagnosis instrument, refer to next
section. An adapter cable is necessary to connect up the
diagnosis instrument.
10A-13
Y220_10A010
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN