2001 ISUZU NPR / NQR Electrical Toubleshooting / Service Manual
FILE DETAILS:
LANGUAGE:ENGLISH
PAGES:260
DOWNLOADABLE:YES
FILE TYPE:PDF
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DESCRIPTION:
2001 ISUZU NPR / NQR Electrical Toubleshooting / Service Manual
HOW TO USE THIS MANUAL:
Circuit Schematics:
- Circuit schematics break the entire electrical system into individual circuits. Electrical components that work together are shown together. Each drawing is arranged so that current flows from positive at the top of the page, to ground, at the bottom of the page. The “hot” labels at the top of a fuse show when the starter switch supplies power to that fuse. Wires that connect to another circuit are shown with an arrowhead pointing in the direction of current flow.
- The name of the circuit that shares wiring is provided for ref¬ erence. “See Fuse Box Details” means that there are other con¬ nections to circuits that are not shown. These shared circuits are shown on the Fuse Box Details circuit sche¬ matic. “See Ground Distribution” means that there are shared ground circuits which are shown on the Ground Distribution circuit schematic. No attempt is made on the schematic to represent components and wiring as they physically appear on the car. For example, a 4-foot length of wire is not treated any differently in a schematic than one which is only a few inches long. The number of cavities for each connector is listed in the Component Location Index rather than being illustrated.
- Similarly, switches and other components are shown as simply as possible with regard to function only. The example on this page shows a horns schematic. Locate the horn schematic by using the Circuit Index. The circuit schematic will look similar to the one shown below. The schematic is read from top to bottom. Voltage is applied to the horn relay at all times. When the relay coil is grounded by closing the horn switch, the relay contacts close. When the relay contacts are closed, both the LH and RH horns are energized.
TABLE OF CONTENTS:
2001 ISUZU NPR / NQR Electrical Toubleshooting / Service Manual
2001 NPR/NQR Electrical Troubleshooting Manual.... 1 Contents.......................................... 2 How to Use This Manual ...................... 3 Troubleshooting .............................. 13 Fuse/Relay Information ...................... 19 Circuit Schematics (see Circuit Index)........ 2 Component Location Photographs .............215 Harness Connector Views.......................237 Connector and Wire Harness Routing............249 Circuit Index..................................... 2 Air Conditioner...............................141 Blower Controls .........................131 Diesel................................129 Gas...................................130 Compressor Controls.......................141 Diesel................................137 Gas...................................139 Anti-lock Brake System (ABS)..................127 Diesel....................................119 Gas.......................................123 A/T Shift Indicator .........................163 Diesel....................................161 Gas.......................................162 Automatic Transmission Controls...............116 Diesel....................................109 Gas.......................................113 Back Up Lights .............................197 Diesel....................................195 Gas.......................................196 Blower Controls .............................131 Diesel....................................129 Gas.......................................130 Brake Lights .................................187 Diesel....................................185 Gas.......................................186 Brake Warning System ........................143 Diesel w/Hydro Booster....................143 Diesel w/Vacuum Booster...................144 Gas.......................................145 Ceramic Heater ...............................133 Charging System .............................. 73 Diesel.................................... 69 Gas....................................... 71 Cigarette Lighter ...........................213 Compressor Controls...........................139 Diesel....................................137 Gas.......................................139 Console Lights ..............................205 Diesel....................................201 Gas.......................................203 Cornering Lights..............................193 Diesel....................................189 Gas.......................................191 Dash Lights .................................205 Diesel....................................201 Gas.......................................203 Dome Light ...................................199 Engine Controls .............................. 75 Diesel.................................... 75 Gas....................................... 83 Engine Coolant Temperature Gauge..............159 Diesel....................................155 Gas.......................................157 Engine Stop System ..........................103 Exhaust Brake System ........................ 95 Automatic Transmission.................... 95 Manual Transmission....................... 99 Front Park Lights ...........................177 Diesel....................................173 Gas.......................................175 Fuel Gauge .................................. 2 Diesel....................................155 Gas.......................................157 Fuse Box Details ............................. 39 Diesel.................................... 31 Gas....................................... 35 Gauges .......................................159 Diesel....................................155 Gas.......................................157 Ground Distribution .......................... 57 Diesel.................................... 49 Gas....................................... 54 Hazard Lights ................................184 Diesel....................................179 Gas.......................................181 Headlights....................................171 Diesel....................................167 Gas.......................................169 Heater .......................................131 Diesel....................................129 Gas.......................................130 Horns .......................................117 Ignition System ............................. 59 Indicators ..................................153 Diesel....................................147 Gas.......................................150 License Light ...............................173 Diesel....................................173 Gas.......................................175 Lighting Switch Details....................... 47 Diesel.................................... 41 Gas....................................... 44 Power Distribution .......................... 25 Diesel.................................... 23 Gas....................................... 27 Power Door Locks .............................209 Power Windows ................................207 Sound System .................................211 Speedometer .................................105 Diesel....................................105 Gas.......................................106 Starting system .............................. 67 Diesel.................................... 63 Gas....................................... 65 Taillights ..................................173 Diesel....................................173 Gas.......................................175 Turn Lights .................................179 Diesel....................................179 Gas.......................................181 Vehicle Speed Sensor (VSS)....................107 Diesel....................................105 Gas.......................................106 Windshield Wiper/Washer ......................165
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