Cessna 188 Series Service Manual page 485

MODEL 188 & T188 SERIES SERVICE MANUAL
SECTION 20
WIRING DIAGRAMS
THRU 1977 MODEL
Page No.
TABLE OF CONTENTS Aerofiche/Manual
Circuit Function and Specific LIGHTING
Circuit Code Letters ...... 3A3/20-2 Compass and Instrument Lighting. . 3C1/20-48
D C. POWER Compass and Instrument Lighting
Battery and External Power System. 3A6-20-5 (24V) ..... .... . 3C2/20-49
Battery and External Power System
Landing Lights ........ 3C3/20-50
(24V, 60 AMP) ... 3A8/20-7 Landing Lights .......... 3C4/20-51
Alternator System (14V, 60 AMP). . 3A10/20-9 Landing Lights (24V) ... ... 3C5/20-52
24 Volt, 60 AMP Regulator,
Landing and Taxi Lights (12V and
Alternator & Warning Lt
. . . . 3A11/20-10 24V) ............. 3C6/20-53
Alternator System (14V, 60 AMP) . 3A12/20-11 Navigation Lights ........ 3C7/20-54
Alternator System (14V, 60 AMP) . 3A13/20-12 Navigation Lights (24V) ..... . 3C9/20-56
Alternator System (14V, 60 AMP) . 3A14/20-13 Flashing Beacon Light ...... 3C10/20-57
24 Volt 60 AMP Regulator, Flashing Beacon Light (24V) .... 3C11/20-58
Alternator & Warning Lt .. . .3A16/20-15 Wing Tip Strobe Lights (12V and
Alternator System (24V, 60 AMP) . 3A17/20-16 24V) ......... 3C12/20-59
Alternator System (24V, 60 AMP) . 3A18/20-17 Flashing Beacon Light (12V and
Alternator System (14V, 100 AMP) . 3A20/20-19 24V). ........... . 3C14/20-61
Alternator System (24V, 100 AMP) . 3A21/20-20 Flashing Beacon Light .... .. 3C15/20-62
Bus Bar ... . .... 3A23/20-22 Map and Auxiliary Instrument
Bus Bar ..... .3B1/20-24 Light (12V and 24V) ...... 3C16/20-63
Battery and External Power System. 3B3/20-26 Compass and Instrument Lighting
IGNITION (12V and 24V) ........ 3C17/20-64
Magneto ...... ....... 3B4/20-27 Compass and Instrument Lighting
ENGINE CONTROL (12V and 24V) ........ 3C18/20-65
Starter System .. .3B5/20-28 Turn Lights ....... 3C20/20-67
Starter System (24V) .......3B6/20-29 Spray Lights (24V) ....... 3C22/20-69
FUEL AND OIL Spray Lights (24V) ........ 3C23/20-70
Fuel Pump System ........ 3B7/20-30 Hopper Light. ... ...... 3C24/20-71
Fuel Pump System (24V). .... . 3B8/20-31 HEATING, VENTING AND DE-ICING
Fuel Pump System (12V and 24V). . 3B9/20-32 Heated Pitot Tube & Heated
Fuel Pump System (12V and 24V) . 3B10/20-33 Stall Warning System .... .. 3D1/20-72
Fuel Pump System (12V and 24V) . 3B12/20-35 Cigar Lighter ........ .. 3D2/20-73
ENGINE INSTRUMENTS Cigar Lighter (24V). ....... 3D3/20-74
Fuel Quantity Indicator ..... 3B13/20-36
Air Conditioner ......... 3D4/20-75
Fuel Quantity Indicator (24V). . . 3B14/20-37 WARNING AND EMERGENCY
Fuel Quantity Indicator, Wing Tank. 3B15/20-38 Stall Warning System
Fuel Quantity Indicator, Wing Tank
(Non-Heated) ......... . 3D5/20-76
(24V) .......... ... 3B16/20-39 Stall Warning System
Cylinder Head Temperature . . . . 3B17/20-40 (Non-Heated( (24V) ...... -3D6/20-77
Cylinder Head Temperature (24V) . 3B18/20-41 MISCELLANEOUS SECTION
FLIGHT INSTRUMENTS Electric Spray Valve (12V) .... . 3D7/20-78
Turn and Bank Indicator.
..... 3B19/20-42 Electric Spray Valve (12V) .... . 3D8/20-79
Turn and Bank Indicator (24V) . . . 3B20/20-43 Electric Spray Valve (24V)
..
... 3D10/20-81
Brittain Wing Leveler .. . .. .3B21/20-44
Agitator (12V and 24V) ...... 3D11/20-82
Turn Coordinator (12V) .. .... .3B22/20-45 Electric Spray Valve ....... 3D12/20-83
Turn Coordinator (24V) ....... 3B23/20-46 Automatic Flagman ....... 3D14/20-85
OTHER INSTRUMENTS Automatic Flagman . .... 3D15/20-86
Ammeter ..... ... ....
. 324/20-47 Agitator (12V and 24V) ..... . 3D16/20-87
Electric Spray Valve ....... 3D17/20-88
Beginning With 1978 Models
D C POWER Alternator System (60 AMP &
Bus Bar . ... .. .. . . . . . 3D19/20-90
95 AMP) . .... . . .. . . . 3E1/20-96
Alternator System (60 AMP &
Alternator System (60 AMP &
95 AMP) . ....... 3D20/20-91 95 AMP) ......... 3E2/20-97
Alternator System (60 AMP &
Battery and External Power System. 3E3/20-98
95 AMP) . ...... . .3D21/20-92 Battery and External Power System. 3E4/20-99
Battery and External Power System. 3D23/20-94
Battery and External Power System
Battery and External Power System. 3D24/20-95 (T188C) ... ... .... 3E5/20-100
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