Volvo Trucks Service Manual & EWD - Wiring Diagrams

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Table Of Contents. Quick Links. See also: Operator's Manual. Service Manual. Table of Contents. Previous Page.

Next Page. Oil and filter change intervals for volvo components 19 pages. No part of this publication may be reproduced, stored in retrieval system, or transmitted in any forms by any means, electronic, me- chanical, photocopying, recording or otherwise, without the prior written permission of Volvo Trucks North America, Inc.. Page 5: General Every effort has been made to provide trouble-free operation, easy maintenance and service, and to provide maximum life of the system and its components.

The chart below can be used to determine the proper wire size for 12 volt systems. A multimeter such as a Fluke 87 is recommended for troubleshooting. When working at the anti-static workbench, always keep a wrist strap connected to the anti-static mat. If it starts at the battery, it must return to the battery. It refers to a circuit that is completed in the wrong way, such as two bare wires touching each other, so that the current bypasses part of the normal circuit.

Voltage measured in volts is the force or pressure which pushes the current through the conductor. The voltage remains the same across each branch of the circuit as though each branch was connected directly to the source voltage. The two circuits above and below each other are in parallel since there are two current paths. The circuit number is stamped into the insulation every 76 mm 3 in. Page 17 Circuit breakers are optional equipment. They may be used on accessory and ignition circuits only.

Circuit breakers protect a circuit from overload. Switches are usually at the beginning of a circuit but can be used to control a ground path. For example, the switch controlling A sensor or sender sends a signal to a control unit, or to the microprocessor in the instrument cluster.

Note that each of these wires contains a fusible link. Wire I feeds cab main power stud 1, and 1-A feeds Ignition Switch Connector Detail The ignition switch is mounted in the key lock assembly. It is a single switch of a new double contact design — Page Switches And Controls The switch for the engine brake is different depending have been given new symbols, for example, the switch on which engine brake is installed.

With the Volvo or for the fog lights and the electric heated side mirrors. The windshield wiper module and central door lock module are covered later in this manual. It is located under the relay panel, and is accessed by removing the top and front TEC center covers, and the fuse and relay panels.

The central locking can be activated from either the passenger or driver side door lock. If the main supply is activated with one door locked and one unlocked, both sides will be automatically unlocked to prevent the driver being accidentally locked out. When replacing, the entire LED unit must be replaced. Cab marker lights without the sunvisor option are standard bulbs see Bulb Replace- ment List in this manual.

For this reason, the rear hazard and tail lamps function differently than the tractor front and trailer rear signals. There are several variants of instruments, depending on what options have been The graphic display is in the lower left-hand side of the installed on the vehicle, and on whether the speedometer instrument cluster. Cautions Dielectric grease is needed to provide protection against moisture and the elements. This can Anti-static wrist strap and mat damage sensitive electrical devices.

Page 47 Intermittent problems may also be caused by was not supplied or recommended by Volvo GM Heavy oxidized or loose connections. Truck Corporation. When replacing wires use onto the wire.

Failure to repair the short circuit which caused the fusible link to melt will result in the new fusible link melting. Remove the Remove Replacement the front steering column cover by re- moving the 3 torx bolts from the cover Pull the steering wheel from the steering shaft.

Remove the 2 clips at the bottom of the steering column cover. Insert the wire through the hole in the Push the contact out from the horn steering wheel where the old contact button area. W Install the air horn button by connect- ing wire connectors and pushing the button into the steering wheel. W Adjust steering column forward and up, where possible. Remove bolts from rear column cover and remove cover.

W To release the switch panel, reach be- hind the panel and depress the top and bottom clips on the left side.

Remove switch from panel switch into panel. Push the switch into by pulling locking tabs away from the panel until it locks. Push the switch into the panel the back of the switch at the top and until it locks. In- stall the nut on the rheostat shaft. Connect the terminal connectors and install the knob. W Use a rag and a pair of pliers to remove the rheostat knob. W Push switch out of the panel. Disconnect the 2 terminal connectors Remove the lighter from the LED housing, and slide the housing out of the dash.

Make certain the vehicle ignition is OFF before beginning this procedure. W Install the new switch, pushing the switch into the panel until it locks. Removal Make certain the vehicle ignition is OFF before beginning this procedure. Remove the 2 screws from ment the ashtray housing, and remove the housing.

Includes checking relay function Removal Make certain the vehicle ignition is OFF before beginning this procedure. W 1 Spacers Remove 3 bolts from the fuse panel, and fold the fuse panel outward from the dash to gain access to the mount- ing bolts for the top TEC tray.

Torque to 4. Torque ashtray mounting screws to 0. Install the fuse panel cover and the top TEC panel cover. Torque screws to 2. W 1 Spacers Remove 3 bolts from the fuse panel, When the tool is inserted, push on the switch to clear the switch tabs from the clips.

When the tool is inserted, push on the switch to clear the locking tab. W Disconnect the clock electrical connector. Failure to do so can result in personal injury and pos- sible damage to the vehicle due to vehicle movement. START all bolts before tighten- 29—36 ft-lb ing. Torque to 40—49 Nm 29—36 ft-lb.

W Remove 3 screws from the right side drip molding and remove the molding. Remove 3 torx bolts from the bottom of the right side mirror mounting arm.

Push the linkage arm away from the area where the motor is bolted to the housing. W Install the left side drip molding with 3 1. This manual is also suitable for: Vnm. Print page 1 Print document pages.

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