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External Temp Sensor Fault? (Read 349 times)

Lee Marshall Newbie Offline Posts: 14 Milton Keynes Gender: Drives: Silver Omega MV6 Estate & an ex-AA VW Transporter	External Temp Sensor Fault? 13. Feb 2011 at 08:59 Hi, I have a fault with external temp sensor on my MV6. It seems to count down to about -40c then shows F on the display. It then seems to reset itself to about 1c and then does it again. I though it may be a sensor fault so I had it replaced by my dealer (£28) but that has not had any effect. What else could be wrong? Thanks!
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Jimbob Global Moderator Admin Team Offline Third nipple removal completed succesfuly Posts: 20462 Chester / Flintshire Gender: Drives: 52 3.2 MV6 Estate & 98 3.0 MV6 Manual Estate	Re: External Temp Sensor Fault? Reply #1 - 13. Feb 2011 at 09:21 ouch! they are only £6 and 2 seconds to fit!!!! if not the sensor, then normally the wiring back from it has failed. more important than some people think as the climate control needs it to work properly
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fiend61 Senior Member Offline a car is not a car if it has cupholders Posts: 798 york Gender: Drives: 99-2.5L manual mfl, 00-2.5l auto f/l	Re: External Temp Sensor Fault? Reply #2 - 13. Feb 2011 at 10:13 as jimbob says check the wiring back to the 4pin connector sited passenger side under bumper up towards the headlight, could be dirty contacts or chaffed wiring , the connector also does your front fogs are they working?
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Lee Marshall Newbie Offline Posts: 14 Milton Keynes Gender: Drives: Silver Omega MV6 Estate & an ex-AA VW Transporter	Re: External Temp Sensor Fault? Reply #3 - 13. Feb 2011 at 10:17 Will give the cabling a check. Vauxhall charged £22 for the part and only £6 to fit. No too bad. The dealer said it might be the Air-con ECU has failed. Is that a possibility?
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Lazydocker Omega King Offline Victim of Pinky's Power Trip! Posts: 11336 Woodbridge, Suffolk Gender: Drives: 2003 3.2 Elite Estate LPG Converted, inspected and Certified	Re: External Temp Sensor Fault? Reply #4 - 13. Feb 2011 at 10:20 Lee Marshall wrote on 13. Feb 2011 at 10:17: Will give the cabling a check. Vauxhall charged £22 for the part and only £6 to fit. No too bad. The dealer said it might be the Air-con ECU has failed. Is that a possibility? The dealer is talking ballcocks It will be a problem with the wiring/connectors.
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fiend61 Senior Member Offline a car is not a car if it has cupholders Posts: 798 york Gender: Drives: 99-2.5L manual mfl, 00-2.5l auto f/l	Re: External Temp Sensor Fault? Reply #5 - 13. Feb 2011 at 10:23 the sensor is roughly £6 fitting is acase of unclipping old sensor and clipping in new one approx 10 seconds not difficult at all check wiring and connector before worrying about anything else, the fault is most likely to be there wonders " how much they want to charge for a air-con ecu if the charge £28 for sensor "
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