Doosan D20S-5 Operation & Maintenance Manual page 111

MAPRangeLow
Manifold Absolute Pressure
sensor input is low, normally
set if the TMAP pressure
332
signal wire has been
disconnected or shorted to
ground or the circuit has
opened to the SECM
(*) Fault actions shown are default values specified by the OEM.
(1) TurnOnMil
(2) EngineShutdown
-109-
Check TMAP connector and MAP signal
wiring for an open 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 TMAP connector and measuring at the
sensor:
TMAP Pin 1(GND) to
Pin 4 (pressure signal KPA) (2.4kΩ - 8.2kΩ)
TMAP Pin 3 (power) to
Pin 4 (pressure signal KPA) (3.4kΩ - 8.2kΩ)
Operation Section