Operation Section Table 2. MI-07 Diagnostic Fault Codes (Flash Codes) cont’d. (*) Fault actions shown are default values specified by the OEM. 65 DFC PROBABLE FAULT FAULT ACTION * CORRECTIVE ACTION FIRST CHECK 161 (16) ECTOverTempFault Engine coolant temperature is high. The sensor has measured an excessive coolant temperature typically due to the engine overheating. (1) TurnOnMil (2) DelayedEngine Shutdown (3) CheckEngineLight Check coolant system for radiator blockage, proper coolant level and for leaks in the system.
Possible ECT short to GND, check ECT signal wiring SECM (Signal) Pin B15 to ECT Pin 3 SECM (Sensor GND) Pin B1 to ECT Pin 1 SECM (System GND) Pin A16, B17 Check regulator for coolant leaks 171 ECT IR Fault _ _ Engine coolant temperature not changing as expected None Check for coolant system problems, e.g.
defective or stuck thermostat 181 FuelSelectConflict Conflict in fuel select signals, normally set if both of the fuel select signals are shorted to ground TurnOnMil Check fuel select switch connection for a short to GND SECM (SIGNAL) Pin A12 SECM (SIGNAL) Pin A15 SECM (Sensor GND) Pin B1 191 CamEdgesFault No CAM signal when engine is known to be rotating, broken crankshaft sensor leads or defective CAM sensor None Check CAM sensor connections SECM (SIGNAL) Pin B10 to CAM sensor Pin 2 SECM (Sensor GND) Pin B1 to CAM sensor Pin 3 Switched 12V to CAM sensor Pin 1 Check for defective CAM sensor 192 CamSyncFault Loss of synchronization on the CAM sensor, normally due to noise on the signal or an intermittent connection on the CAM sensor None Check CAM sensor connections SECM (SIGNAL) Pin B10 to CAM sensor Pin 2 SECM (Sensor GND) Pin B1 to CAM sensor Pin 3 Switched 12V to CAM sensor Pin 1 Check for defective CAM sensor 193 CrankEdgesFault No crankshaft signal when engine is known to be rotating, broken crankshaft sensor leads or defective crank sensor None Check Crankshaft sensor connections SECM (SIGNAL) Pin B5 to Crank sensor Pin 3 SECM (Sensor GND) PIN B1 to Crank sensor Pin 2 Switched 12V to Crank sensor Pin 1 Check for defective Crank sensor 194 CrankSyncFault Loss of synchronization on the crankshaft sensor, normally due to noise on the signal or an intermittent connection on the crankshaft sensor None Check Crankshaft sensor connections SECM (SIGNAL) Pin B5 to Crank sensor Pin 3 SECM (Sensor GND) Pin B1 to Crank sensor Pin 2 Switched 12V to Crank sensor Pin 1 Check for defective Crank sensor