Buncers Posted January 8, 2004 Report Posted January 8, 2004 Hello - I'm new to this Have been having problems with my blowers for some time (only setting 4 working), then my wipers stopped working with all the blowers until the car was warmed up. Finally the wipers failed completely. Replaced blown fuse. Seems to have fixed problem for now. Will it return. Blowers still only working on setting 4. Why are these things connected ? Anyone know how to fix the blower problem ? Any help appreciated. Quote
Guest SA Intruder Posted January 8, 2004 Report Posted January 8, 2004 Yep, resistor unit goosed. 9/10 chance. Quote
Guest ianock Posted January 8, 2004 Report Posted January 8, 2004 Front wipers are known problem areas,if fuse goes again check the wiper motor,look for signs of water ingress underneath as it destroys the circuit board.While your there disconnect the wiper linkage & make sure the linkage moves freely(prone to seizing)make sure you put linkage back in same posistion as you took it off(9 o'clock posistion).The motors always tend to go in wet weather because of water ingress....which could be all year round in this country :huh: Quote
Buncers Posted January 8, 2004 Author Report Posted January 8, 2004 Thanks for all the advice Any idea why the wipers and blowers are linked, ie don't work until the car warms up ? Quote
Guest ianock Posted January 8, 2004 Report Posted January 8, 2004 Could be connected due to(on some models)they use the same earth point(behind left side headlight area from memory!),could be water ingress drying out or just sheer coincidence? Let us know how you get on :huh: Quote
Buncers Posted January 13, 2004 Author Report Posted January 13, 2004 it could be the switch but i'd say it sounds like the resistor packs gone u/s? fredt - If it was the resistor pack, would the blower at setting 3 still work intermittently - but most of the time not at all. Most of the time only setting 4 is working ? Quote
Ivor_E_Tower Posted January 13, 2004 Report Posted January 13, 2004 I'm not fredt, but from experience, this can happen- depends on how the resistance wires have failed. Bust to remove the old unit and check it for failures. Have previously seen units with wire coils exposed to the air flow within the blower unit, and they fail through melting. If one end of the break is "flapping around" it may make intermittent contact. Quote
Guest yurir Posted January 13, 2004 Report Posted January 13, 2004 Do "resistor packs" still use resistors ? I had a look at my front blower control pack, and it looks like an electronic device, bolted to what appears to be a chunk heatsink. Probably a switched-mode regulator ? If it is electronic, it could fail in weird and not so wondeful ways e.g. if it decided to act like a "resistor", it would get very very hot and perhaps even explode. Quote
seatkid Posted January 13, 2004 Report Posted January 13, 2004 I'm inclined to agree, would have thought the speed control was electronic. In which case the switch might be the culprit but..... :blink: ...don't all the electrics work via an electronic (CAN) bus? (The loads are switched by electronic relays controlled by a serial data bus) That would explain how the vehicle can switch off loads when battery voltage is low etc. Also explains the weird faults you can get (between seemingly unrelated items). Quote
Ivor_E_Tower Posted January 13, 2004 Report Posted January 13, 2004 Didn't think that the Galaxy used CAN BUS, thought that only more recent designs of vehicles would have it fitted. Quote
seatkid Posted January 13, 2004 Report Posted January 13, 2004 Just checked TIS, late 2000 onwards have a Module Communications Network, Data Link Connector (DLC), this sounds like CAN BUS Yes...up to three data buses (CAN, ISO9141 and SCP) see this extract from TIS Communications Network Module communication is effected via two different data bus systems, in which the data link connector (DLC) forms the interface between the modules and the diagnostic tester. For vehicles with 2.0l DOHC and 2.3l DOHC engines, an additional third data bus system is used. The Controller-Area-Network (CAN) data bus consists of two twisted wires. Communication takes place both between the modules themselves and between the modules and the diagnostic tester, via these lines. If there is a break in one of the lines or a short to ground or short to battery positive is present, then communication between the modules and the diagnostic tester is no longer possible. The International Organisation for Standardisation (ISO) 9141 data bus consists of a single line. If there is a break in the line or a short to ground or short to battery positive is present, then communication between the modules and the diagnostic tester is no longer possible. The Standard Corporate Protocol (SCP) data bus is not installed in all vehicle versions. It is only used in vehicles with 2,0l DOHC and 2.3l DOHC engines. It is only responsible for communication between the PCM and the diagnostic tester. It consists of two twisted wires. If there is a break in one of the lines or a short to ground or short to battery positive is present, then communication between the PCM and the diagnostic tester is no longer possible. The data link connector (DLC) is a standard 16-pin connector, which connects the communication lines (CAN, SCP and ISO 9141), the EEPROM programming line and the diagnostic tester power supply. The steering position sensor transmits the turning angle of the steering wheel to the Electronic Stability Program (ESP) module and communicates with the ESP module and the DLC via the CAN data bus. The vehicle is fitted with either the ESP module or the ABS module (with or without TCS). The ESP module controls the anti-lock braking system (ABS), the traction control system (TCS) and the stabilising system. It is connected to the PCM, the steering position sensor and the DLC via the CAN data bus. There is also a connection to the DLC via the ISO data bus. The ABS module with TCS controls the anti-lock braking system and the traction control system and is connected to the PCM and the DLC via the CAN data bus. There is also a connection to the DLC via the ISO data bus. The PCM controls all functions related to engine management and emission control. This module communicates with the ESP module, the ABS module with TCS, the instrument cluster and the DLC via the CAN data bus. The instrument cluster is connected to the DLC and the PCM via the CAN data bus. If the vehicle is equipped with a diesel engine, a fuel-fired booster heater is fitted. This supplements the interior heating at low ambient temperatures. The airbag module controls the driver's and passenger's airbags, the side airbags and the pyrotechnic seat belt pretensioner. The module is connected to the DLC via the ISO data bus. The Generic Electronic Module (GEM) is connected to the DLC via the ISO data bus and controls all time-dependent functions. The PCM transmits the engine speed signal for the tachometer, the engine temperature signal for the coolant temperature display and the signal for the speedometer to the instrument cluster, via the CAN data bus. Quote
seatkid Posted January 13, 2004 Report Posted January 13, 2004 Further digging into TIS confirms for vehicles without climate control that The blower motor operates at four speeds controlled electrically by means of a resistor. Also picked this up for early Sharalaxies, evidently the Windscreen Wiper Motor was a common problem. Procedure for Inoperative Windscreen Wiper Motor Vehicles with 1.9l TDI and 2.8i-CD-V6 engine built to 14.10.96 inclusive (build code TY). If a concern is expressed that the front wiper motor is not functioning, this could be caused by voltage peaks that occur when the air conditioning compressor is switched on and which damage the wiper motor module. To resolve the concern, the wiper motor module must be renewed (not the whole wiper motor) and an additional cable with diode must be installed. The additional cable must be installed between the wiring harness and the magnetic clutch. Since 15.10.96 (build code TY), an additional cable with diode has been installed on the air conditioning compressor in production Quote
seatkid Posted January 13, 2004 Report Posted January 13, 2004 Agreed. However I thought the BUS info might shed some light on (other) weird faults - BTW there is definitely some (proprietry) BUS on pre-2000 models (the lights can switch off automatically etc. maybe it can control the power to Wiper?) Quote
Ivor_E_Tower Posted January 13, 2004 Report Posted January 13, 2004 Don't know about that.I just love the way that Ford use the word "concern" rather than "complaint"! Quote
Buncers Posted January 19, 2004 Author Report Posted January 19, 2004 Could be connected due to(on some models)they use the same earth point(behind left side headlight area from memory!),could be water ingress drying out or just sheer coincidence? Let us know how you get on :unsure: Earth Point Any idea how I can find/get to this earth point ? What does it look like ? Is it in the engine compartment or do I need to take the headlight out ? Quote
Buncers Posted January 19, 2004 Author Report Posted January 19, 2004 Wierder and Wierder So - I was looking around under the bonnet for the earth point this morning. Went out in the afternoon and when I stopped and turned off the ignition the blowers and wipers (4th position only of course) kept going. Very wierd - I think the car is possessed. Managed to turn them off individually. Any ideas or should I get in the priest ? Quote
Ivor_E_Tower Posted January 19, 2004 Report Posted January 19, 2004 Only if he's an electrician in his spare time! Quote
Dally Posted January 19, 2004 Report Posted January 19, 2004 Hey do any of you guys know what the EPC light in the cluster is for on the V6? The manual says: - This light should extinguish when the engine has been started - if not then there's something wrong! Yes, but what is it for? Quote
Buncers Posted January 26, 2004 Author Report Posted January 26, 2004 Attempted the fix this weekend - before the predicted freeze-up. Symptoms before I started (to recap). 1) Blower only working on 4th setting2) Sometimes not working at all and at the same time wipers would not work, until warmed up. 3) More recently, interior (courtesy) lights stayed on after ignition and security alarm would not set.4) Blowers (4th setting only), wipers and radio stayed on after ignition turned off. :) Suspected resistor pack (info from Forum - thanks guys).I suspected poltergeist. :angry: Tried to fix former: 1) Bought resistor pack ( Quote
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