If you pull a fuse and find the drain is on that circuit then you need to decide 940 Electrical System Shutdowns. 1994/1995 940 B230FD non-turbo cars using either Bosch or Regina have rather square, squat, blue-colored fuel injection relays in the front row, second from right. Soldering the PCB is done on the other side from the components. I expect that the three passenger doors are on one harness and that the tailgate has a separate harness lead that comes from the relay. Relay Tray Removal and Replacement. Thumbs Up: 0: Headlight Relay 4109070 Malfunction I recently purchased a 2003 9-3 SE and within a week, I got the dreaded "Headlamp Failure" message on the SID. If it senses a bulb failure, it illuminates the instrument panel warning lamp. The switch block will come up and out of its mount point by gently prying up on the edge of the plate that the switches are mounted to. [Quick preventative:] Watch the wires coming from the connector directly under the windshield below the driver and the oil pressure and alternator wires on the right front of the motor. Often this will be intermittent: when the wires cool down, the connection is re-establised. Any solution short of splicing lasts no more than a few months. Remove knock sensor plug and temp sensor (gray). The plastic headlight lenses of my 2004 Volvo Xc90 have become cloudy and appear to prematurely aging. [Additional tips from Dick:] My suggestion: do not remove the intake manifold on the 700 series. It goes without saying that if you are going to touch this, you need to. [Al Bert] If the car's electrical system shuts down and the battery cables and ignition switch are not at fault, check the relay/fuse panel mains and sockets, especially what may be a hot wire connected to the short buss below the sockets. [Inquiry] The brake lights on this car don't work. I have replaced the blower motor, relay, and the fan motor switch without solving the problem. The illustration shows an overdrive relay with solder cracks. Note: for intermittent driveability problems, see the section on de-oxidizing engine wiring connectors in the Performance section of the FAQ as well as brief notes on engine ground straps. 6 posts • Page 1 of 1. lmacdonald Posts: 3 Joined: 26 Oct 2012, 18:14 Year and Model: XC90, 2008 Location: Salem, NH. [Inquiry] Driving headlights only work when high beams are selected. My relay panel is all plastic. Those pins are hard to crimp unless you have the correct crimp tool, so I just soldered 4 jumper wires on to the circuit board and used insulated spade connectors on the jumper wires to attach to the 4 supply wires. One frequent short is in the radio amplifier circuit. Repeat the test with the +ve lead on the blue wire in the open connector (pin 3) -if you don't see 12 volts in the opposite position then the problem is in the blue wire circuit back to the driver door pod switch. First, there's the issue of the mechanical connection itself. If some of the locks are operating and others are not, then you have either a relay failure, a wiring problem or a ground connection problem. Try tapping on the relay to see if that doesn't at least make a temporary difference. Message came up: "bulb failure low beam. the assembly. You'll notice the component leads (including the fine wires) stick through and are soldered to so-called "traces". Bulb-Out Relay. Happens on both sides and the bulbs have been checked and are good. One of the Cs is the original outside shape of the ferrule; the second is the opposite side of the ferrule formed backwards. Overall Discussions of Ground Fault Problems: For a good overall discussion of Volvo electrical system grounds, see the article "Volvo Electrical System Service: In Search of Good Grounds", Bob Kraft, ImportCar magazine, December 1997 at http://www.underhoodservice.com/ (see their searchable archive for ImportCar Magazine.). Volvo XC90 Fuel Pump Relay. [Matt Evans] THere was a bad solder joint on the middle circuit board that I was able to re-flow without disassembling. Most predictable failures can be solved within a two-hour time block. Beneath it you will see the relay tray behind the fuses. At big $$$ for Volvo & the service center. petrol), mass air flow sensor (V8), glow plugs (diesel). Temporary solutions: liquid electrical tape, applied in several coats over several hours, good between -20 and 255 degrees F; shrink-fit insulation, applied with heat gun or torch, good past 400 degrees F, but hard to fit correctly over end connectors; spliced wiring, recommended by some Swedishbricks and SAAB list members as the most nearly permanent fix that does not require a new harness. The video above shows how to replace blown fuses in the interior fuse box of your 2008 Volvo XC90 in addition to the fuse panel diagram location. Want Answer 1. Label the old harness too because you can always compare wire colors in the connectors that are alike. wires) from the remote switch over to the passenger door switch or in ↳ Volvo XC90 ↳ Volvo 850, S70, V70, C70, XC models 1992-2000 ↳ Volvo S80 Forum - First Generation 1999-2006 ↳ Volvo V70, XC70 2008-2016, Volvo S80 2007-2016 ↳ S60 2011+ and V60 2015+ and XC60 2010-2018 ↳ Volvo S90, V90, V90 Cross Country Forum ↳ Volvo XC90 2016+ ↳ S40 & V50 Forum 2004.5+ ↳ Volvo S40 & V40 Forum 2000-2004 Under a bright light, and using a magnifying glass, inspect the soldered connections. See the FAQ File on mechanical faults in the driver's door switch and locking rods. To access relays, remove the ashtray (push the spring clip at the top) and fuse panel cover (push the plastic snap at the bottom). They are terminals, the insulated kind that insert in various grey connectors, including relays, wiring harness hookups and fuel pumps. [Tips from Joe Ward] My rear taillight has been blowing the bulb rather frequently. Electronic throttle module (ETM), solenoid valve, SWIRL (air mixing valve), fuel pressure regulator (diesel). Once the wires are removed, use a small screwdriver to raise the black plastic over the three lips on the front of the fuseholder. The hose was cut to approximately 1-1/4inch length to fit lengthwise Everything is color coded to its location. When the circuit is de-energized (as when the ignition is off) The switch has the spring in it that returns the key to run position after you go to the starter position and it can weaken or wear. immobilizer, transmission control module (V8, 6-cyl. for visual images and instructions for wiring harness replacement and other maintenance items. I use needle nose pliers for removing and re-installing the wires. Now you can remove the harness from the engine area and install the new. Since the … Continue reading "2004 Volvo XC90, Lower Stoplights Do Not Work" The RF passenger door is the exception -it gets its primary power directly from fuse 8. Analog sensors are much more susceptible to ground offsets and electrical noise in the system. The fuse did not blow, but instead heated up enough to melt the fuse and the surrounding fuse box. As for narrowing diagnostic probabilities, let's remember that: See the following diagrams for fuse locations in 740/940 and some 760/all 960 cars: The window guide must be undone, and a clip to engage the door handle to the latch, that can't be seen has to be disconnected and The harness runs along the left side of the block, and EACH of the wires was completely bare the majority of the length of the block!! Everything seems to work except when I hit the bright lights the indicator comes on, the headlights move up but no high beam lights on. Over time, the factory crimped wire and relay base connector increased in resistance and overheats. My left-side high beam light was inop, and the high beam indicator on the dash would not work. Note that cases of relay or fuse panel socket connector failure have been traced to the crimp on the wire. We use cookies to ensure that we give you the best experience on our website. CAUTION: DO NOT do this to any SRS/Airbag/Seatbelt connectors: these are all gold-plated and do not oxidize. Combined instrument panel (DIM), climate control (CCM), parking heater, power driver’s seat . OBDII, light switch (LSM), Steering Angle Sensor (SAS), Steering Wheel Module (SWM). Soldering Tips and Techniques. Install new zips where old ones were. I have recovered literally dozens of Bosch relays (OD, fuel pump, wipers) to perfect performance this way at $0. Note that relays are not interchangeable. Turn it and pop it out. That's why the RF passenger door can sometimes be operated locally but not remotely from the driver door. however check the relay first. These are all limited in scope; you should purchase, as one of your first manuals, an OEM wiring diagram green book from Volvo specific to your year and model. [Response: John Sargent] The brake light failure in our 87 745T was caused by the bulb failure relay. Main page; About us; Contact us; Volvo XC60 (2011) – fuse box diagram. see how much current is flowing. Now start to remove the old harness toward the engine and start to plug in new stuff. You should (and in your case will) see 12 volts on the yellow-red wire in the open connector (pin 4) with the ignition switch on (KPII). [Bill Bethell] You can make a pick by grinding down an old bicycle spoke into a long thin straight As it heats and ages it melts together and forms a tough, conformal coating. Mild hybrid. Pull the fuse and take a reading to see which side of the fuse holder has 12 volts on it. Label stuff carefully. [Tip from JohnB] I had a similar problem with the plastic/copper circuit board below the steering wheel on my Saab. Pull the relay and re-seat it before going further. Volvo XC90 3.2: in talking with a Volvo xc90 owner, he sais in talking with a Volvo xc90 owner, he sais that the rear bearings go bad at 80-100K miles and also the coupling is not sealed and so it corrodes. Have since found the same issue on the Aux Fan relay connector. The headlight relay is energized by the light switch and supplies current to the high/low switch. Tried it first without releasing the manifold and it took 8 hours. The wires up by the firewall on the left side of the car were bare at the connector. 1994/1995 940 B230FD non-turbo cars using either Bosch or Regina have rather square, squat, blue-colored fuel injection relays in the front row, second from right. The new one has a different connector and you are supposed to crimp new pins on each of the 4 wires (Volvo can supply those too).
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