825597 Mercury PIPE-BREATHER

Illustration 1 g01100964
Output voltage from a typical analog temperature sensorIllustration 1 indicates the signal range for a typical analog sensor. Diagnostic codes will be generated if the sensor's output signal is below 0.2 VDC or above 4.8 VDC.Active Diagnostic Codes
An active diagnostic code represents a problem with the electronic control system. Correct the problem as soon as possible.If the condition that generated the code is momentary, the message disappears from the list of active diagnostic codes. The diagnostic code becomes logged.Logged Diagnostic Codes
When the Electronic Control Module (ECM) generates a diagnostic code, the ECM logs the code in permanent memory. The ECM will record the following information when a code is generated:
The hour of the first occurrence of the code
The hour of the last occurrence of the code
The number of occurrences of the codeThis information is a valuable indicator for troubleshooting intermittent problems.A code is cleared from memory when one of the following conditions occur:
The service technician manually clears the code.
The code does not recur for 100 hours.
A new code is logged and there are already ten codes in memory. In this case, the oldest code is cleared.Some diagnostic codes may be easily triggered. Some diagnostic codes may log occurrences that did not result in complaints. The most likely cause of an intermittent problem is a faulty connection or damaged wiring. The next likely cause is a component failure. The least likely cause is the failure of the engine's ECM. Diagnostic codes that are logged repeatedly indicate a problem that needs special investigation.Note: Always clear logged diagnostic codes after investigating and correcting the problem which generated the code.Diagnostic Codes Table
Table 1
Engine Diagnostic Codes    
CID    FMI    Description    
0001     11     Injector Cylinder #1 fault    
0002     11     Injector Cylinder #2 fault    
0003     11     Injector Cylinder #3 fault    
0004     11     Injector Cylinder #4 fault    
0005     11     Injector Cylinder #5 fault    
0006     11     Injector Cylinder #6 fault    
0042     11     Inject Actuation Control Valve open/short    
0091     08     Throttle Position signal abnormal    
0094     03     Fuel Pressure open/short to +batt    
0094     04     Fuel Pressure short to ground    
0100     03     Engine Oil Pressure open/short to +batt    
0100     04     Engine Oil Pressure short to ground    
0110     03     Engine Coolant Temperature open/short to +batt    
0110     04     Engine Coolant Temperature short to ground    
0164     00     High Injector Actuation Pressure    
0164     02     Injector Actuation Pressure Sensor Loss of Signal    
0164     03     Injection Actuation Pressure voltage hig    
0164     04     Injection Actuation Pressure voltage low    
0164     11     Injector Actuation Press Sensor mechanical failure    
0168     02     System Voltage intermittent    
0172     03     Intake Manifold Air Temp open/short to +batt    
0172     04     Intake Manifold Air Temp short to ground    
0175     03     Engine Oil Temperature open/short to +batt    
0175     04     Engine Oil Temperature short to ground    
0190     02     Loss of Engine Speed Signal    
0190     11     Engine Speed Sensor mechanical failure    
0253     02     Personality Module mismatch    
0261     13     Engine Timing calibration required    
0262     03     5 Volt Sensor DC Power Supply short to +batt    
0262     04     5 Volt Sensor DC Power Supply short to ground    
0268     02     Check Programmable Parameters    
0273     03     Turbo Outlet Pressure open/short to +batt    
0273     04     Turbo Outlet Pressure short to ground    
0274     03