Webwithout explanation. Relay 109 controls the ECU and since the ECU controls fueling, failure of relay 109 causes the engine to suddenly shut off. The old relay is black and marked "109" and is under the dashboard in the relay box. The redesigned relay to fix this problem is gray and is also marked "109". If you have a black relay 109, WebRelay 109 is the main power supply relay for A3/B4, and A4 TDIs with the ALH engine. When it fails the engine will crank but not start. Sometimes they fail intermittently. Read …
Electrical problems, no ignition power at all. VW TDI forum, Audi ...
WebApr 5, 2013 · SOURCE: fuel pump relay. The relay panel is mounted just behind and below the headlight switch - actually right behind the diagnostic plug. Access to this relay is from beneath the dash. Remove the driver's-side under-dash flat plastic panel with a Torx screwdriver (T20) you only need to remove the three screws at the front edge). WebRelay 109 only switches on the ECU. The fact that the glow plug light does not come on means there is something wrong with relay 103, either the wiring or the relay itself. First ensure that all the wiring operates correctly as per my description above, because the vehicle will not start if the glow plugs do not come on. Regards, Martin. the valley view collection furniture
Jetta TDI dies while driving VW TDI forum, Audi, Porsche, and …
WebAug 23, 2014 · This video deal with a 1998 Jetta Tdi with 351,000 miles. Can had and intermittent no start condition due to a faulty relay 109. However I jumped the gun and … WebFeb 17, 2024 · In the relay panel (bottom row) there are: position 1: 53 (horn) position 2: 100 (load reduction) position 4: 409 (fuel pump) position 5&6: 192 (wiper w/rain sensor) Does that sound correct? Is anything missing? And one more thing: Why, having put away with relays for low and high beams a long time ago, did they keep a relay for the fog lights? D WebMar 28, 2024 · Referring to the pic without the arrow, if you don't see any relays up top, they are 3 layers deep in that box. Take out the ecm. No need to disconnect. Take out the tcm under that. No need to disconnect. Now … the valley view collection