Harness Routing Views. Isuzu Isuzu MD F-Series 2008

For 1990-2009 cars only

Makes 🢒 Isuzu 🢒 2008 🢒 Isuzu MD F-Series 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Harness Routing Views

Figure 1:

Front Right Side of Engine Compartment (LF8)


(1)	Engine - LF8
(2)	X105
(3)	Glow Plug Relay
(4)	X111
(5)	X125
(6)	X102
(7)	Transmission Control Module (TCM)
(8)	Engine Control Module (ECM)

Figure 2:

Right Rear Side of Engine Compartment (LF8)


(1)	X109
(2)	Fuse Block - Primary
(3)	X121
(4)	X127
(5)	X101
(6)	X401

Figure 3:

Left Side of Engine (LF8)


(1)	X122
(2)	Manifold Absolute Pressure (MAP) Sensor
(3)	X123
(4)	Engine Control Module (ECM) X2
(5)	Intake Manifold Temperature (IMT) Sensor
(6)	Fuel Temperature Sensor
(7)	Suction Control Valve (SCV)
(8)	Crankshaft Position (CKP) Sensor
(9)	G100
(10)	Oil Level Switch
(11)	X111
(12)	Fuel Rail Pressure (FRP) Sensor
(13)	Water in Fuel Sensor
(14)	Glow Plug Control Module
(15)	Exhaust Gas Recirculation (EGR) Valve

Figure 4:

Cab to Frame Grounds


(1)	Front Cross Member
(2)	G114
(3)	Right Frame Rail
(4)	Cab Ground Cable
(5)	G214
(6)	Cab

Figure 5:

Engine Harness Ground to Frame (LF8)


(1)	G100
(2)	Starter Ground Cable
(3)	G101

Figure 6:

Front of Engine (LF8)


(1)	Exhaust Gas Recirculation (EGR) Cooler Temperature Sensor 1
(2)	Throttle Body
(3)	X129
(4)	Exhaust Gas Recirculation (EGR) Cooler Temperature Sensor 2
(5)	Engine Coolant Temperature (ECT) Sensor

Figure 7:

Front of Engine Compartment (LF8)


(1)	J101
(2)	J118
(3)	J171
(4)	J110
(5)	J159
(6)	J102
(7)	J161
(8)	J162
(9)	J233
(10)	J100
(11)	J151
(12)	J195
(13)	J121
(14)	J115
(15)	J104
(16)	X175
(17)	X408
(18)	J193
(19)	J163
(20)	J114

Figure 8:

Engine Chassis Harness


(1)	Automatic Transmission
(2)	X175 Engine Chassis Harness to Transmission
(3)	A/C Compressor Clutch Pigtail Connector
(4)	Engine Chassis Harness
(5)	Starter
(6)	X125 Engine Chassis Harness to Front Chassis Harness
(7)	X117 Engine Chassis Harness to Front Chassis Harness
(8)	Front Chassis Harness
(9)	X116 Engine Chassis Harness to Front Chassis Harness
(10)	X115 Engine Chassis Harness to Front Chassis Harness
(11)	Engine Chassis Harness

Figure 9:

Front Chassis Harness 1 of 3


(1)	Condensor and Fan (C60)
(2)	G107
(3)	X118 Front Chassis Harness to Engine Harness
(4)	X115 Front Chassis Harness to Engine Chassis Harness
(5)	X116 Front Chassis Harness to Engine Chassis Harness
(6)	X125 Front Chassis Harness to Engine Chassis Harness
(7)	X117 Front Chassis Harness to Engine Chassis Harness
(8)	Engine Control Module (ECM)
(9)	X111 Front Chassis Harness to Engine Chassis Harness
(10)	Wheel Speed Sensor (WSS)-LF
(11)	Data Link Connector (DLC) Resistor
(12)	Front Fascia
(13)	X105 Front Chassis Harness to Turn Signal Harness
(14)	X207 Front Chassis Harness to Lower I/P Harness
(15)	X205 Front Chassis Harness to Lower I/P Harness
(16)	X200 Front Chassis Harness to Lower I/P Harness
(17)	X202 Front Chassis Harness to Lower I/P Harness
(18)	X204 Front Chassis Harness to Lower I/P Harness
(19)	Front Chassis Harness

Figure 10:

Front Chassis Harness 2 of 3


(1)	Hydromax Fuse (JE3)
(2)	ABS Relay (JE4)
(3)	Power Brake (P/B) Booster Pump Relay
(4)	Surge Tank Bracket
(5)	Cab Bridge
(6)	X104 (Upfitter PTO Connector)
(7)	X405 Front Chassis Harness to Rear Chassis Harness
(8)	Trailer Stop Lamp Relay (RQ2 and U86 or RQ3)
(9)	X2 Starter Relay
(10)	X1 Starter Relay
(11)	X3 Starter Relay
(12)	X411 Front Chassis Harness to Fuel Tank Harness
(13)	X405 Front Chassis Harness to Rear Chassis Harness
(14)	X403 Front Chassis Harness to Rear Chassis Harness
(15)	X406 Front Chassis to Tractor/Trailer Harness
(16)	X421 Front Chassis Harness to Air Compressor Harness (K16)
(17)	Fuse Block 2
(18)	Fuse Block 1
(19)	X401 Front Chassis Harness to Upfitter AUX WRG Connector
(20)	X409 Front Chassis Harness to Upfitter PTO Harness

Figure 11:

Front Chassis Harness 3 of 3


(1)	Cab Bridge
(2)	Frame Rail - Right Hand
(3)	X400 Front Chassis Harness to Fusible Link
(4)	X402 Front Chassis Harness to Fusible Link
(5)	Batteries
(6)	Low Air Pressure Switch - Primary (JE4)
(7)	JX400

Figure 12:

Fuel Tank - Right (NK8)


(1)	Fuel Sender (NK8 or NNW)
(2)	G410
(3)	Fuel Sender Harness
(4)	Crossmember Center Beam
(5)	Front Chassis Harness
(6)	X411 Fuel Sender Harness to Front Chassis Harness
(7)	Rear Chassis Harness

Figure 13:

Inboard Left Frame Rail, Rear of the Spring Perch


(1)	Engine Bell Housing
(2)	X104 Upfitter PTO Connector
(3)	Front Chassis Harness
(4)	Left Frame Rail
(5)	Left Rear Spring Perch

Figure 14:

Inboard Left Frame Rail, Forward of #2 Crossmember


(1)	Front Chassis Harness
(2)	X409 (6 Cavities - Upfitter Remote PTO Connector - PTO)
(3)	X410 (4 Cavities - Upfitter PTO Throttle Position Sensor Connector - PTO)
(4)	X401 (12 Cavities - Upfitter AUX WRG Connector)
(5)	Upfitter Transmission Optional Connector - (10 Cavities - A/T)
(6)	Lower Left Frame Rail

Figure 15:

Outboard Right Frame Rail, Rear of the Air Cleaner


(1)	Right Frame Rail
(2)	G400 (from Splice Pack JX400 and Negative Battery Cable)
(3)	Ground Cable to Splice Pack SP400
(4)	Front Chassis Harness
(5)	X402 (2 cavities)
(6)	Fusible Link 1
(7)	Fusible Link 2
(8)	Air Intake Elbow
(9)	Positive Battery Cable
(10)	Air Cleaner
(11)	Fusible Link 3
(12)	Fusible Link 4
(13)	X400 (2 cavities)
(14)	Negative Battery Cable
(15)	Battery - Outboard
(16)	Negative Battery to Battery Cable
(17)	Battery - Inboard

Figure 16:

Behind the Left Side of the I/P


(1)	Lower I/P Harness
(2)	J305
(3)	Controller Area Network (CAN) Connector
(4)	Forward Bulkhead
(5)	X209 (6 cavities - Upfitter Connector - PTO)
(6)	Glow Plug Relay
(7)	Glow Plug Relay X2
(8)	Glow Plug Relay X1
(9)	Driver Grab-handle
(10)	Door Harness - Left

Figure 17:

Outboard Right Frame Rail, Rear of the Batteries


(1)	Right Frame Rail
(2)	Fuel Tank (NK8 or NNW) or Fuel Tank - Secondary (NG7, NJ7, NJ8 or NNQ)
(3)	G410 shown, G411 on Left Fuel tank
(4)	Fuel Sender (NK8 or NNW) or Fuel Sender - Secondary (NG7, NJ7, NJ8 or NNQ)
(5)	G400 (from Splice Pack JX400 and Negative Battery Cable)
(6)	Battery - Inboard
(7)	Battery - Outboard

Figure 18:

Fuel Tank - Right (NK8)


(1)	Fuel Sender (NK8 or NNW)
(2)	G410
(3)	Fuel Sender Harness
(4)	Crossmember Center Beam
(5)	Front Chassis Harness
(6)	X411 Fuel Sender Harness to Front Chassis Harness
(7)	Rear Chassis Harness

Figure 19:

Fuel Tank - Left (NK6)


(1)	G411
(2)	Fuel Sender - Left (w/o NK8 or NNW)
(3)	X411 Fuel Sender Harness to Front Chassis Harness
(4)	Front Chassis Harness
(5)	Crossmember Center Beam
(6)	Rear Chassis Harness

Figure 20:

Fuel Tanks - Dual (NJ8)


(1)	Fuel Tank - Right
(2)	Fuel Sender - Secondary (NG7, NJ7, NJ8 or NNQ)
(3)	G410
(4)	Crossmember Center Beam
(5)	G411
(6)	Fuel Sender - Primary
(7)	Fuel Tank - Left
(8)	Rear Chassis Harness
(9)	Front Chassis Harness
(10)	X411 Fuel Sender Harness to Front Chassis Harness

Figure 21:

Trailer Front Harness to Cab Bridge, Left Forward View


(1)	Trailer Receptacle

Figure 22:

Turn Signal Harness (Front Fascia)


(1)	X105 Turn Signal Harness to Front Chassis Harness
(2)	A/C High Pressure Switch (C60)
(3)	Park/Turn Signal Lamp - Right Front
(4)	Horn (w/U08)
(5)	Horn (w/o U08)
(6)	X101 Turn Signal Harness to Horn Harness (U08)
(7)	Park/Turn Signal Lamp - Left Front

Figure 23:

Rear Chassis Harness 1 of 2


(1)	Frame Rail - Right Hand
(2)	X404 Rear Chassis Harness to Two-Speed Rear Axle Harness
(3)	Rear Chassis Harness
(4)	Rear Axle Shift Motor Connector - Two-Speed (HP2)
(5)	Rear Axle Shift Relay - Two-Speed (HP2)
(6)	Rear Spring Crossmember - Front

Figure 24:

Rear Chassis Harness 2 of 2


(1)	X405 Rear Chassis Harness to Front Chassis Harness
(2)	X403 Rear Chassis Harness to Front Chassis Harness
(3)	Front Chassis Harness
(4)	Rear Chassis Harness
(5)	Surge Tank Bracket
(6)	Cab Bridge
(7)	Batteries

Figure 25:

Lower Right Front of Engine-LF8


(1)	G101
(2)	G100

Figure 26:

Trailer Harness


(1)	G402
(2)	Tractor or Trailer Receptacle
(3)	Trailer Harness
(4)	X406 Trailer Harness to Front Chassis Harness
(5)	Front Chassis Harness