Doosan D35C-5 FDA04 Operation & Maintenance Manual page 121

Table 2. Diagnostic Fault Codes (Flash Codes) cont'd.
DFC PROBABLE FAULT
MAPTimeRangeHigh
Manifold Absolute Pressure
Sensor Input is High, normally
341 set if the TMAP pressure
(34) signal wire has become
shorted to power, shorted to
the IAT signal, the TMAP has
failed or the SECM has failed.
MAPRangeHigh
Manifold Absolute Pressure
Sensor Input is High, normally
set if the TMAP pressure
342
signal wire has become
shorted to power, shorted to
the IAT signal, the TMAP has
failed or the SECM has failed
MAP_IR_HI
351 MAP sensor indicates higher
pressure than expected
MAP_IR_LO
352
MAP sensor indicates lower
pressure than expected
MAP_STICKING
353 MAP sensor not changing as
expected
IATRangeLow
Intake Air Temperature
Sensor Input is Low normally
371
set if the IAT temperature
(37)
sensor wire has shorted to
chassis ground or the sensor
has failed.
(*) Fault actions shown are default values specified by the OEM.
FAULT ACTION *
Check TMAP connector and MAP signal wiring
for a shorted circuit
TMAP Pin 4 to SECM Pin B18 (signal)
TMAP Pin 1 to SECM Pin B1 (sensor GND)
TMAP Pin 3 to SECM Pin B24 (XDRP +5 Vdc)
Check the MAP sensor by disconnect-ing the
TurnOnMil
TMAP connector and measuring at the sensor:
TMAP Pin 1(GND) to
Pin 4 (pressure signal KPA) (2.4k - 8.2k)
TMAP Pin 3 (power) to
Pin 4 (pressure signal KPA) (3.4k - 8.2k)
Check TMAP connector and MAP signal wiring
for a shorted circuit
TMAP Pin 4 to SECM Pin B18 (signal)
TMAP Pin 1 to SECM Pin B1 (sensor GND)
TMAP Pin 3 to SECM Pin B24 (XDRP +5 Vdc)
(1) TurnOnMil
Check the MAP sensor by disconnecting the
(2) Engine
TMAP connector and measuring at the sensor:
Shutdown
TMAP Pin 1(GND) to
Pin 4 (pressure signal KPA) (2.4k - 8.2k)
TMAP Pin 3 (power) to
Pin 4 (pressure signal KPA) (3.4k - 8.2k)
Check for vacuum leaks. Check that TMAP
TurnOnMil sensor is mounted properly. Possible defective
TMAP sensor.
TurnOnMil Possible defective TMAP sensor.
Check that TMAP sensor is mounted properly.
TurnOnMil
Possible defective TMAP sensor.
Check TMAP connector and IAT signal wiring
for a shorted circuit
TMAP Pin 2 to SECM Pin B12 (signal)
TMAP Pin 1 to SECM Pin B1 (sensor GND)
TurnOnMil To check the IAT sensor of the TMAP
disconnect the TMAP connector and measure
the IAT resistance
Resistance is approx 2400 ohms at room
temperature.
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CORRECTIVE ACTION FIRST CHECK
Operation Section