Chris and Kate Posted November 23, 2022 Share Posted November 23, 2022 Is there a simple fix for this issue?The car is used every week and ran perfectly last time out.I put the key in the ignition, turned the key and waved the immobilser black tag thing under the dash.The immobiliser light went out and I pressed the start button.Nothing but a faint hum.I have tried unplugging the battery for ten mins to see if that resets anything but no luck. I have also taken off the solenoid/fuse box cover and checked that everything is pushed home into its socket.Headlights and wipers work fine. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 23, 2022 Member Share Posted November 23, 2022 1 Any recent work on it? Has it been drowned?2 Recycle immobiliser.3 Check inertia cut-off switch.4 Measure battery voltage at rest and as you try to crank. (Or failing that try jumping off another battery or vehicle.)5 Check all relevant connections and earths, including battery, starter, and engine block earth.JonathanPS: Please me know if you'd like an Assembly Guide (with wiring diagram) and Owner's Handbook (with layout of fuses and relays). Link to comment Share on other sites More sharing options...
SM25T Posted November 23, 2022 Share Posted November 23, 2022 Battery not fully charged ? Link to comment Share on other sites More sharing options...
Chris and Kate Posted November 26, 2022 Author Share Posted November 26, 2022 The car was driven over 50 miles two days before the fault appeared.No work on it, not drowned.The lights work fine so I assume the battery is OK.I have looked, as much as I can given the very tight spaces, to see if a wire has come off. I've also pushed everything I can reach/feel home.I suspect it is either the wires to the motor or a fuse/solenoid issue. Link to comment Share on other sites More sharing options...
Chris and Kate Posted November 26, 2022 Author Share Posted November 26, 2022 It worked fine the last time the car was driven. It gets taken out every week and was driven 50 miles two days prior to the fault appearing.Lights and wipers work so I', assuming it is a fuse/wiring/solenoid issue. Link to comment Share on other sites More sharing options...
Leadership Team 700newtons Posted November 26, 2022 Leadership Team Share Posted November 26, 2022 Is the fuel pump relay faulty? When you turn the key can you hear the fuel pump buzz into action for a few seconds.a new relay can be found on ebay quite cheaply.Simon Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 27, 2022 Member Share Posted November 27, 2022 "The lights work fine so I assume the battery is OK."I wouldn't assume that. Would you like a recommendation for a multimeter?Jonathan Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted November 27, 2022 Area Representative Share Posted November 27, 2022 Put headlights on. Do they dim when you try to start? If they do it's a sign of a flat battery or possibly a poor connection. Link to comment Share on other sites More sharing options...
Mark_P09 Posted November 27, 2022 Share Posted November 27, 2022 Hi, this does sound similar to a problem I had which I believe was down to a sticking relay. I swapped relays around, it started fine but the indicators didn't work! I've replaced all the relays now with new Bosch ones and it's been fine ever since.Just in case the part numbers for Bosch mini & micro relays I ordered from Arnold Clark parts were as follows:0332209152 0986AH0304 Link to comment Share on other sites More sharing options...
Chris and Kate Posted December 1, 2022 Author Share Posted December 1, 2022 The engine does not turn. Link to comment Share on other sites More sharing options...
Chris and Kate Posted December 1, 2022 Author Share Posted December 1, 2022 The engine does not turn. Pressing the start button results in a small electronic hum "mmmmmmm...".Either the starter motor is faulty or something is stopping it from getting power. Link to comment Share on other sites More sharing options...
SM25T Posted December 1, 2022 Share Posted December 1, 2022 Have to put a voltmeter or multimeter across the battery. Just guessing otherwise. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 2, 2022 Member Share Posted December 2, 2022 What Ian says.Jonathan Link to comment Share on other sites More sharing options...
Chris and Kate Posted December 2, 2022 Author Share Posted December 2, 2022 Update!I swapped two of the "bocks" around in the electrics box under the passenger dashboard and it worked!If anyone else has the same issue there are two big "blocks" in the lower row, above that are six smaller "blocks" in two rows of three..I swapped the middle two "blocks", upper row to lower row, in that group of six smaller "blocks".The engine starts immediately.So now I need to work out if this is just luck or if something is going to cause this to happen again. I probably need to find out what the defective "block" is now wired to.Thanks for all the help. Link to comment Share on other sites More sharing options...
Chris and Kate Posted December 2, 2022 Author Share Posted December 2, 2022 That's what it was. I swapped the middle two blocks in the group of six and it worked. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 2, 2022 Member Share Posted December 2, 2022 I'd guess that's the relays for the starter and for the radiator fan. Any sign of overheating on the relay or the relay base?I have diagrams of the fuse and relay layouts if you'd like them...Jonathan Link to comment Share on other sites More sharing options...
Mark_P09 Posted December 2, 2022 Share Posted December 2, 2022 As I said in my previous post - don't swap the micro relays, replace them! Link to comment Share on other sites More sharing options...
John Vine Posted December 2, 2022 Share Posted December 2, 2022 #16: Yes, assuming your 160 has the same fuse and relay set-up as the 170, this is the lay-out (from the latest Handbook):If you swapped RAD FAN and START, it would be worth checking whether or not your fan now runs. JV Link to comment Share on other sites More sharing options...
ScottR400D Posted December 2, 2022 Share Posted December 2, 2022 Or swap them back and see if it still starts; it may have just needed pushing in properly. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 2, 2022 Member Share Posted December 2, 2022 Yes, same layout of relays in the 160/165 (K6A) as shown above for the 170.Jonathan Link to comment Share on other sites More sharing options...
Chris and Kate Posted May 13, 2023 Author Share Posted May 13, 2023 I swapped the relays for Bosch ones from Arnold Clark as recommended in this thread. It worked.Just an update in case anyone else has the same issue. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 13, 2023 Member Share Posted May 13, 2023 Well done. And thanks for adding the answer.Jonathan Link to comment Share on other sites More sharing options...
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