GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 1999 🢒 Isuzu MD Steel Tilt (F Model) 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Engine Controls Component Views
Figure 1:

Automatic Transmission Harness, Upper Left Rear View
Object Number: 228797 Size: LF
(1)Backup Lamps Switch
(2)Vehicle Speed Sensor (VSS)
(3)Neutral Switch
(4)Front Chassis Harness
Figure 2:

Manual Transmission Harness (5 or 6-Speed), Upper Left Rear View
Object Number: 628296 Size: LF
(1)Front Chassis Harness
(2)Backup Lamps Switch
(3)Vehicle Speed Sensor (VSS) (JE5)
(4)Vehicle Speed Sensor (VSS) (JE3)
(5)Manual Transmission Case
(6)Manual Transmission Harness
(7)C409
Figure 3:

Manual Transmission Harness (9 or 10-Speed) , Upper Left Rear View
Object Number: 231666 Size: LF
(1)Backup Lamps Switch
(2)Vehicle Speed Sensor (VSS)
Figure 4:

Instrument Panel Harness to Right Seat
Object Number: 228786 Size: MF
(1)Lower IP Harness
(2)Inverting Driver Module Connector (JE3)
(3)Inverting Driver Module (JE3)
(4)Multifunction Alarm Module
(5)Ignition Main Relay
(6)Speedo Adapter (Vehicle Speed Sensor (VSS) Buffer)
(7)Pre Stroke Power Cut Relay Fusible Link, 30 A
(8)Engine Control Module
(9)Engine Control Module Connector C2 (80 cavities)
(10)Engine Control Module Connector C1 (40 cavities)
Figure 5:

Ambient Air Temperature Sensor
Object Number: 397149 Size: LF
(1)Ambient Air Temperature Sensor
Figure 6:

Accelerator Pedal Sensor
Object Number: 397650 Size: LF
(1)Accelerator Pedal Sensor
Figure 7:

Automatic Transmission , Left Side View
Object Number: 397655 Size: MF
(1)Backup Lamps Switch
(2)Automatic Transmission Modulator
Figure 8:

Left Side Engine View
Object Number: 397631 Size: MF
(1)Engine Coolant Temperature Gauge Sensor
(2)Fuel Pressure Sensor
(3)Pressure Control Valve 1
(4)Pressure Control Valve 2
(5)Injection Pump Speed Sensor
Figure 9:

Engine Speed Sensor
Object Number: 397634 Size: MF
(1)Engine Speed Sensor
Figure 10:

Front Chassis Harness to Cab Bridge (JE5) (LG4) Right Forward View
Object Number: 397657 Size: LF
(1)ABS Relay (JE5)
(2)Exhaust Brake Disable (Interlock) Relay
(3)Trailer Stop Relay
(4)Electronic Brake Control Module (EBCM) (JE5)
Figure 11:

Instrument Panel (Relay Center 2), Lower Right Center View
Object Number: 397661 Size: LF
(1)Relay Center 2
Figure 12:

Left Rear Engine View
Object Number: 397647 Size: LF
(1)Fuel Injector Connector
(2)Glow Plug
(3)Fuel Temperature Sensor
(4)Glow Plug
Figure 13:

Fuel Tank Harness, Right Side
Object Number: 628248 Size: LF
(1)Fuel Sending Unit Connector
(2)Fuel Tank Sender (NL5)
(3)Fuel Transfer Pump Connector
(4)Fuel Transfer Pump
(5)Back of Cab Crossmember
(6)Fuel Tank Harness to Left Side Fuel Tank
(7)C411
(8)Rear Chassis Harness
Figure 14:

Fuel Tank Harness to Fuel Level Controls, Left Side Front View
Object Number: 402258 Size: LF
(1)Fuel Sender and Balance Pump Control Module
(2)Fuel Transfer Pump Relay
Figure 15:

Instrument Panel Harness to the Right Seat
Object Number: 397629 Size: MF
(1)Ignition Main Relay
(2)Pressure Control Valve Relay
(3)Stop Lamps Switch Interface Module
Figure 16:

Instrument Panel Switches, Center Forward View
Object Number: 231678 Size: LF
(1)Exhaust Brake Switch
(2)Fast Idle Switch
(3)Heated Mirror Switch
(4)Two-Speed Rear Axle Shift Switch (Automatic Transmission)
(5)Air Suspension Dump Switch
(6)Differential Lock Switch
(7)Clearance Lamps Switch
Figure 17:

Instrument Panel and Instrument Cluster With Gages
Object Number: 228466 Size: MF
(1)Speedometer
(2)Tachometer
(3)Air Pressure Gage
(4)Fuel Gage
(5)Engine Oil Pressure Gage
(6)Voltmeter
(7)Engine Coolant Temperature (ECT) Gage
(8)Indicator Lamps Check Switch
Figure 18:

Instrument Panel, Center (Typical)
Object Number: 231681 Size: LF
(1)Relay Block 2
Figure 19:

Instrument Panel, Right Side Forward View
Object Number: 228475 Size: MF
(1)Relay Center 1
(2)IP Fuse Block
Figure 20:

Steering Column, Left
Object Number: 228426 Size: LF
(1)Multifunction Switch
(2)Right Multifunction Lever
(3)Ignition Switch
(4)Left Multifunction Lever
Figure 21:

Engine Harness to Right Side of Engine, Right Rear View
Object Number: 228805 Size: LF
(1)Engine Harness
(2)Generator Fuse
(3)Generator
(4)A/C Compressor Clutch
(5)A/C Compressor
(6)Engine Oil Pressure Gage Sensor
Figure 22:

Fuel Tank Harness, Left Side
Object Number: 231729 Size: MF
(1)Fuel Sender
(2)Fuel Tank
Figure 23:

Exhaust Brake Solenoid, Right Front View
Object Number: 216278 Size: MF
(1)Exhaust Brake Solenoid Valve
Figure 24:

Front Chassis Harness to Brake Components (JE3)
Object Number: 231487 Size: LF
(1)Brake Fluid Flow Switch
(2)Electronic Brake Control Module (EBCM) (JE3) Connecor C2 (2 cavities)
(3)Electronic Brake Control Module (EBCM) (JE3) Connector C1 (24 cavities)
(4)Electronic Brake Control Module (EBCM) (JE3)
Figure 25:

Lower Instrument Panel, Left Forward View
Object Number: 231692 Size: SF
(1)Data Link Connector (DLC)
Figure 26:

Front Chassis Harness to Radiator Surge Tank, Forward View
Object Number: 231750 Size: LF
(1)Radiator Surge Tank
(2)Cab Bridge
(3)Front Chassis Harness
(4)Low Engine Coolant Level Indicator Switch