Electrical system
5
Electrical component and wiring harness routing ......... 5-1
Port ........................................................................................... 5-1
Junction box assembly .............................................................. 5-3
Rear ........................................................................................... 5-5
Top ............................................................................................ 5-6
Bottom cowling .......................................................................... 5-7
ECM circuit ........................................................................ 5-9
Circuit diagram .......................................................................... 5-9
ECM coupler layout ................................................................. 5-11
Checking the electrical component ............................... 5-12
Using the YDIS ........................................................................ 5-12
Measuring the peak voltage .................................................... 5-12
Using the digital tester ............................................................. 5-13
Engine control unit and component .............................. 5-13
Checking the main relay .......................................................... 5-13
Checking the engine ECM circuit ............................................ 5-14
Checking the TPS ................................................................... 5-15
Checking the ISC valve ........................................................... 5-15
Checking the oil pressure sensor ............................................ 5-16
Fuel control unit and component .................................. 5-16
Checking the water detection switch ....................................... 5-16
Checking the fuel injector ........................................................ 5-17
Checking the high-pressure fuel pump .................................... 5-18
Checking the vapor shut-off valve ........................................... 5-18
Charging unit and component ....................................... 5-19
Ignition unit and component .......................................... 5-21
Checking the ignition spark ..................................................... 5-21
Checking the spark plug wire .................................................. 5-21
Checking the ignition coil ......................................................... 5-21
Checking the pulser coil .......................................................... 5-22
Checking the air temperature sensor ...................................... 5-23
Checking the air pressure sensor ............................................ 5-24
Checking the engine temperature sensor ............................... 5-24
Summary of Contents for F150A
Page 1: ...SERVICE MANUAL 63P 28197 3P 12 F150A FL150A F150B FL150B ...
Page 4: ......
Page 48: ...2 3 Electronic control system Engine ECM component 2 3 4 6 5 1 8 7 10 9 11 12 14 15 16 13 17 ...
Page 110: ...3 41 Propeller selection MEMO ...
Page 129: ...4 18 Outboard motor troubleshooting MEMO ...
Page 175: ...5 44 PTT system 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 247: ...7 22 Starter motor Terminal nut 3 9 N m 0 9 kgf m 6 6 ft lb ...
Page 385: ...8 78 Shimming counter rotation model 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 449: ...9 62 PTT gear pump 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Page 474: ...i 8 Index 0 1 2 3 5 6 7 8 9 10 10 A MEMO ...
Page 475: ......
Page 476: ...Oct 2011 2 ABE E ...