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I have been diagnosing my Camshaft sensor issue after installing a new ECU in my 1999 5sp Manual 2500. I have been going through the article: http://articles.mopar1973man.com/3rd-generation-dodge-cummins/60-obdii-error-codes/312-p0341-camshaft-position-cmp-sensor-signal I am using the pin-out from the FSM to locate the wire positions in the ECU connector and the sensor connector. There are numbers on the ECU connector for reference. I have found the conducting wire which actually goes to the Ecu connector in spot 9 instead of spot 17 as specified in the pin-out. There is full continuity between the Pin C in the cam sensor connector and pin 9 in the Ecu connector. I was about to cut and solder due to diagnostic specifications and lack of continuity of the specified pins, Then I noticed the color of the wires is different. I would appreciate any understanding as to why this is the case and help me to find the best solution to my issue. And replacing the cam sensor is a major PiTA... Below is the ECU pin-out in the FSM ENGINE CONTROL MODULE (DIESEL) - 50 WAY CAV CIRCUIT FUNCTION 1 H104 18BR/OR IDLE VALIDATION SWITCH NO. 1 2 K244 20YL/DB CUMMINS BUS (+) 3 K6 18VT/WT 5V SUPPLY 4 K14 18BK/DB SENSOR GROUND 5 F18 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START) 6 G60 18GY/BK ENGINE OIL PRESSURE SENSOR SIGNAL 7 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL 8 G12 18GY/RD MANIFOLD AIR PRESSURE SENSOR SIGNAL 9 - - 10 K7 18OR 5V SUPPLY 11 K104 18BK/LB SENSOR GROUND 12 K246 20YL/DG CUMMINS BUS (-) 13 K242 20WT DATA LINK (+) FUEL INJECTION PUMP 14 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL 15 K135 18YL/WT TRANSFER PUMP SUPPLY 16 H105 18LG/DB IDLE VALIDATION SWITCH NO. 2 17 K124 18GY CAMSHAFT POSITION SENSOR SIGNAL 18 K48 18DG FUEL INJECTION PUMP SYNC SIGNAL 19 - - 20 - - 21 K1 18DG/RD WATER IN FUEL SENSOR SIGNAL 22 V37 18RD/LG SPEED CONTROL SWITCH SIGNAL 23 K240 20BK DATA LINK (-) FUEL INJECTOR PUMP 24 V32 18YL/RD BRAKE SWITCH SENSE 25 H102 18LB/BK ACCELERATOR PEDAL POSITION SENSOR SIGNAL 26 G113 18OR PTO SWITCH SENSE 27 - - 28 K22 18OR/DB ACCELERATOR PEDAL POSITION SENSOR SIGNAL 29 S21 18YL/BK AIR INTAKE HEATER RELAY NO.1 30 Z12 18BK/TN GROUND 31 H101 18DB/WT ACCELERATOR PEDAL POSITION SENSOR SUPPLY 32 H103 18BK/YL ACCELERATOR PEDAL POSITION SENSOR GROUND 33 K45 18LB/RD FUEL SHUT-OFF SIGNAL 34 K44 18VT/OR LOW IDLE SELECT 35 K135 18YL/WT TRANSFER PUMP SUPPLY 36 K131 18BR/WT FUEL INJECTOR PUMP RELAY CONTROL 37 G85 18OR/BK WAIT-TO-START WARNING INDICATOR DRIVER 38 D21 18PK/DB SCI TRANSMIT 39 D20 18DG SCI RECEIVE 40 D2 18WT/BK CCD BUS (-) 41 D1 18VT/BR CCD BUS (+) 42 K247 20DB CUMMINS BUS SHIELD 43 G7 18WT/OR VEHICLE SPEED SENSOR SIGNAL 44 K243 20OR/BR DATA LINK SHIELD FUEL INJECTOR PUMP 45 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL 46 - - 47 S22 18OR/BK AIR INTAKE HEATER RELAY CONTROL NO. 2 48 A14 18RD/WT FUSED B(+) 49 Z12 18BK/TN GROUND 50 A14 18RD/WT FUSED B(+)