845760T 6 Mercruiser CYLINDER ASSEMBLY, Steering, Port

Use the lamps to check the operational status of the engine or the existence of any engine faults.
Each lamp will be illuminated in a combination of ways in order to identify the engine's operational status. The lamps will also be illuminated in a combination of ways to indicate if the engine has a fault. These combinations of illuminated lamps have the following meanings:The status of the lamps before the engine is cranked. This also acts as a lamp check.When the ignition switch is turned ON, the lamps will be illuminated for 2 seconds. The lamps are then OFF unless the cold starting aid is required.
Table 1
Orange lamp (status) Red lamp (status) Comments
ON ON The lamps will be illuminated for 2 seconds or the lamps will be illuminated until the engine is cranked.
Refer to the comments. OFF The lamp will be OFF unless the cold starting aid is required. The lamp status with the cold starting aid in operation and before the engine is cranked.The orange lamp will be illuminated until the engine is ready to be cranked.
Table 2
Orange lamp (status) Red lamp (status) Comments
ON OFF The status of the lamps with the cold starting aid still operating.
Then OFF OFF This is the status of the lamps while the engine is being cranked. The cold starting aid is no longer operating. This is the status of the lamps while the engine is being cranked.Unless there is a fault, the engine monitoring system will not illuminate the indicator lamps while the engine is being cranked. For example if there is a lack of lubricating oil pressure after the start delay is exceeded. This type of fault will cause the stop lamp for the engine to be illuminated.
Table 3
Orange lamp (status) Red lamp (status) Comments
OFF OFF There are no apparent problems.
ON ON The lubricating oil pressure is low. This low oil pressure was measured after the set delay had expired. The status of the lamps after cranking has failed to start the engine.
Table 4
Orange lamp (status) Red lamp (status) Comments
OFF OFF No faults were detected.
ON OFF An electrical fault was detected.
OFF Flashing The engine was activated when a serious fault was detected. Other combinations of illuminated indicator lampThe following combinations of lamp status may also be exhibited when the engine is either running or when the engine has been shut down automatically.
Table 5
Orange lamp (status) Red lamp (status) Comments
OFF OFF No faults were detected.
OFF ON The oil pressure is low.
Flashing OFF Either the coolant temperature is high or the intake air temperature is high. The engine may be derated.
OFF Flashing Either a fault has caused the engine to be automatically shut down or the engine has exceeded the condition for a derate.
ON OFF An electrical fault has been detected.
ON ON The oil pressure is low and there is an electrical fault.
ON Flashing Either a fault has caused the engine to shut down or the engine has exceeded the conditions for a derate. There is also an electrical fault.
Flashing ON The oil pressure is low and either the coolant temperature or the intake air temperature is high. The engine may be derated. Use the lamps to identify active diagnostic codes.
The indicator lamps can be used to identify an active code by flashing in a sequence that will identify the active code. The active code that is flashed by the indicator lamps is related to the Component Identifier (CID). The indicator lamps cannot identify the fault with the component. The active code that is flashed by the indicator lamps is not a Failure Mode Identifier (FMI).
Table 6
CID number Description Flash code
0041 8 Volt DC Supply 517
0091 Throttle Position Sensor 154
0100 Engine Oil Pressure Sensor 157
0102 Boost Pressure Sensor 135
0105 Inlet Manifold Temperature Sensor 133
0110 Engine Coolant Temperature Sensor 168
0168 Electrical System Voltage 422
0174 Fuel Temperature Sensor 165
0247 SAE J1939 Data Link 514
0253 Personality Module 415
0262 5 Volt Sensor DC Power Supply 516
0320 Speed/Timing Sensor 141
0342 Secondary Engine Speed Sensor 142
0774 Secondary Throttle Position Sensor 155
1627 Fuel Pump Relay 187
1684 Fuel Injection Pump 158
1690 Throttle #2 Position Sensor 195
1743 Engine Operation Mode Selector Switch 144
1894 Cruise Control Disengage Switch 427
1895 Cruise Control Speed Toggle Switch 428 When the Flash Code feature is activated the indicator lamps will flash the codes of all active codes. Activation of the indicator lamps is achieved by cycling the keyswitch OFF and ON twice within 3 seconds.There will be a delay of 2 seconds before the lamps start to flash the identity of any active code.An active CID with two digits will be flashed in the following sequence. There will be a number of flashes. The n