1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 83Get this manual
ENGINE CONTROL SYSTEM 3-28
CONDITION FOR SELF-DIAGNOSTIC SYSTEM OPERATION
FAILED ITEM MAP sensor CONDITION No signal (With engine running) Receiving an out of range "37 860 mmHg (0.20 4.53V)" signalWith engine runningNo signal from any CKP sensors while receiving signals from other CKP sensors No signal from any CKP sensors while receiving signals from CMP sensorIAC valveBy-pass air screw adjustment CMP sensor CTP switch Cylinder tempsensor IAT sensor MAP sensor (Sensor hose) Rectifierregulator (Over-chargingExhaust manifold temp, sensor IAC valve operates at 90 duty or higher when CTP switch is "ON" [NOTE 1] No signal while receiving 12 signals from CKP sensors Receiving "ON" signal when engine speed is 2500 r min or higher and intake manifold pressure is 300 mmHg or higher No signal Receiving an out of range46 to +170 (0.10 4.63V)" signal No signal Receiving an out of range46 to +1690.04 4.46V)" signal Receiving unchanging signal regardless engine speed change [NOTE 2] Receiving 16 volts or higher signal No signal Receiving an out of range46 to +170 (0.10 4.63V)" signal