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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Ignition SwitchViews : 510 Replies : 2Users Viewing This Thread : |
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Jul 11th, 2020, 21:48 | #1 |
New Member
Last Online: Jul 11th, 2020 23:17
Join Date: Jul 2020
Location: Earls Barton
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Ignition Switch
Hi ,
I have an issue with my 1800s 69 model Has anyone come across this I have 2 issues 1. Vehicle will not start 2. Ignition is live without key operation (Ignition is live) ignition light active and fuel gauge is displaying tank reading with ignition key in position 2 / or with key removed. I have checked ignition switch wiring , and have the following Terminal 30 ( brown wire / 12 volts when turning the ign key to accessory / radio position. Terminal 54 ( white wire / 12 volts from switch to ignition / charging light on dash and from fuse box supply to ignition switch. Terminal 50 ( red and white wire / no supply voltage from switch when moving ign key to starting / cranking position 4. If I provide a voltage from the red and white at the switch to the starter solenoid the starter will turn , but engine will not start. The ignition key turns without any issues , and I can select all positions. All functions on the car work without issue , lights , indicators etc etc . If I remove the yellow and brown wire from the alternator charge relay the ignition light will go out ?? , or of course disconnect the battery. Thanks Phil |
Jul 12th, 2020, 13:29 | #2 |
VOC Member
Last Online: Yesterday 14:34
Join Date: Jul 2006
Location: Chatham
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1. Was everything working correctly before this problem occurred?
2. Was it sudden? 3. What work were you doing on the car immediately before you had the problem. |
Jul 12th, 2020, 15:19 | #3 |
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Last Online: Today 09:52
Join Date: Jul 2007
Location: Connecticut, USA
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Phil;
[Welcome to this forum! I/we can try to help, but I see inadequate/conflicting/mixed info in your posting which doesn't help and needs to be be cleared...] I have an issue with my 1800s 69 model Has anyone come across this I have 2 issues 1. Vehicle will not start [...of course!...everyone has experienced a non-starting vehicle, but we need a lot more and specific info...! Do you have fuel?...did it start fine yesterday, or an hour ago, nothing has been changed from factory stock, or was it just hit by a meteor, and involved in an engine-fire?] 2. Ignition is live without key operation [...presumably you say that because you see the AMP Indicator is ON when Ign Key is turned to the Ign ON Position 3, or did you test further for Spark?] (Ignition is live) ignition light [...we'll call it the AMP Indicator...it indicates status of the Charging Sys...there is no indicator on the Ign Sys!] active and fuel gauge is displaying tank reading with ignition key in position 2 / or with key removed. [...are you certain? Pos 2 is OFF, Key insert Pos!?!...see diagram below!] I have checked ignition switch wiring , and have the following Terminal 30 ( brown wire / 12 volts when turning the ign key to accessory / radio position. [Term 30 is Batt power...it should have power continuously, when a charged Batt is installed!...not just when Key is in Ign On Pos 3, or 1!] Terminal 54 ( white wire / 12 volts from switch to ignition / charging light on dash and from fuse box supply to ignition switch. [Term 54 is Ign Power, it should have power when Key is in Pos 3 or 1] Terminal 50 ( red and white wire / no supply voltage from switch when moving ign key to starting / cranking position 4. [Term 50 is Sol power, and should get power when turning Key to Pos 4!] [From the wire color codes, I know this is an early, dashboard located Ign Sw...in that case, Key Pos 2 is the Off Pos, in which Key can be inserted and removed, so I wouldn't expect Ign to be powered at that time...Key positions, with Term power diagram: [Verify also that Ign Sw is locate in Dashboard and not Steering Column (this would make this a very rare configuration requiring special troubleshooting considerations!)] If I provide a voltage from the red and white at the switch to the starter solenoid the starter will turn , but engine will not start. [As expected, but no start...suggests fuel or Ign issue!] The ignition key turns without any issues , and I can select all positions. [OK!] All functions on the car work without issue , lights , indicators etc etc . [OK, but actual Ign circuit is a separate circuit which must be functioning for a successful Start. (...and with Dashboard located Ign Sw, the actual Ign circuit is somewhat inaccessible, due to armored cable tying together Ign Sw and Ign Coil!) ] If I remove the yellow and brown wire from the alternator charge relay the ignition light will go out ??[This is expected!, and it is standard practice to refer to multiple colored wires by their main color first, and thin tracer color second. Removing Brn/Yel wire from VReg/Chg Control removes power from AMP Ind, so no surprise there!], or of course disconnect the battery. [Wire color codes you state are those of the early Generator(Dynamo) based Chg Sys, (Ref: https://www.sw-em.com/1800_Wiring_Di..._No_10000+.jpg ], not Alternator, there is a significant difference!...you need to confirm your configuration, give specifics, in standard terminology, and if anything has been added, changed, or "worked on" before I can give applicable and more helpful troubleshooting help.] ...a bit much, and don't take my picking apart your info wrong, but I need correct, specific and concise info with which to help...! Cheers from Connecticut! |
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