20 Most Recent Transmission & Drivetrain for Volvo C70 Questions & Answers

this code refers to shift timing solenoid "A" circuit open this can be the solenoid , the connectors or the wiring if you can recall when it first started was there anything done or fitted to the car
sorry i don't know what solenoid is "A" i am not familiar with volvos i bought a book on fault codes hope this helps

Transmission &... | Answered on Aug 16, 2014

Temporarily, you can go to the fuse box inside your car [open the driver's door and the panel is on the end of the dash, which is hidden when the door is closed.] And pull the last fuse, #38, for the siren.

The owner's manual states that pulling the fuse, or if it's damaged/burnt/blown, that the alarm will sound. That's not true. BTW, I learned of all this from three different Volvo forums/user groups, tonight. My '03 S60 started having a near constant running of the alarm. [It's usual 25 second run, a very short pause, and then it'd go again.]

Pulling the fuse disables the siren, but the rest of the alarm still works as usual. Blinking lights, and if it has it, an ignition kill. You can verify buy closing all doors, but keeping the drivers window down. Then arm the alarm. Wait 30 seconds. Manually pull up on the door lock pin. Then open the door. The amber lights should start flashing. And your dash will have a message that the alarm was triggered, and to check the vehicle.

The problem and it's permanent solution: the batteries in the siren module go bad after some time, and if they leak their electrolyte fluid, that'll corrode the circuit board and/or quite commonly, it turns out, corrode one of the two +/- wires connecting the battery to the circuit board. Thus, messing up the alarms sense of reality, and triggering the alarm at random times/intervals.

Need to get a replacement siren module [can't get circuit board separately, apparently.] and either have fun trying to replace it yourself [dealing with rivets] or have the dealership do it. They'll say you need to do a software reset, but you just need to arm/disarm the system three times to reset it. [according to the forum posts I've read.]

Good luck!

Here are links to what I read:





Volvo Vehicle... | Answered on Jun 11, 2019

u will find a lot of wiring diagrams, codes etc and circuit diagrams help books and stuff like this at online places.. like reliable-store
for free

the girl in the chat box can help u instantly... im a frequent buyer there since Im a mechanic so take help from there

Volvo Vehicle... | Answered on Jan 24, 2019

cheap repair would be touch up paint. you can get some at a parts store or a volvo parts department located at the dealership

Volvo Vehicle... | Answered on May 06, 2015

you have tho call the dealership and set it up

Volvo Vehicle... | Answered on Feb 12, 2015

There is a relatively common fault of the antenna in the receiver (around the key hole on the steering column) going bad. Basically, it doesn't detect your key properly and then it refuses to start.

You could tap or bang around a bit around the column to see if you can limp it along, but replacement is the most likely course of action. Check the link I attached, it's not that expensive.

You might want to make sure that's the problem (call FCP) before you buy the part though, to be safe.

Volvo Ignition Immobilizer Antenna Genuine Volvo 8621509

Volvo Vehicle... | Answered on Jul 31, 2014

Replace the radiator cap with the proper pound pressure cap. If still does this, could be a bad water pump or collapsed lower radiator hose.

Volvo Vehicle... | Answered on Jul 30, 2014

I do not know this car, but most car the drivers door with key, lock and unlock twice with all doors/windows closed...

Volvo Vehicle... | Answered on Jun 29, 2014

check your plugs first. if OK get the codes.as it can be a coil pack .

Volvo Vehicle... | Answered on Dec 02, 2013

No it will not. By bypassing the heatercore, you are loosing the defroster option on the car until you get it fixed.

Volvo Vehicle... | Answered on Jul 30, 2012

You may have something as simple as a glovebox lamp or trunklamp that is staying on when the lid is closed.Easy to check those before you start getting too deep. The reason I suggest these two is that I worked for Volvo as a tech and found this situation after ripping my hair out for hours, more than once.You might also just have a battery that has done it's service and now wants to retire. If you have power seats take a quick under the front seats from the rear and check for a possible soda can or other form of debris that may have squeezed a wiring harness. Lastly an alternator regulator which is intergral with the alternator can cause a draw if it goes faulty. Disconnect the tickler harness(pull off connector) from the alternator and see if you've still got a draw. I'll be following your results, I'm intrigued by your situation. Good luck my friend, Dana

Volvo Vehicle... | Answered on Sep 10, 2009

The alarm module is most likely failing. They fail internally sometimes. There is no way to remove it I'm sorry to say. It will need to be taken to a trusted shop and replaced.

I hope this helps

Volvo Vehicle... | Answered on Aug 16, 2009

I have a 740- the safety features are as far as I know an air bag for the driver and various body frame structures to protect in impact. C

Volvo Vehicle... | Answered on Mar 01, 2009

plse explain in detail on what help and solutions you are looking for in detail.

Volvo Vehicle... | Answered on Mar 01, 2009

I had a problem similar to that which you described the car would start fine then few seconds later it would cut out completely.
i changed the fuel pump, Fuel pump relay and still the problem was there and a a code of P0230 i cleaned the ECU connections which still didnt change anything so i put a jumper wire to bypass the fuel pump relay it got it to work fine.
With abit more digging and head scratching i opened up the ECU and found one wire broken.
I soldered it back in place and behold the car worked a dream no problem ever since.
I also removed the bypass which i put on the fuel pump relay and put the relay back.
Dont know if this would fix your problem but hopefully it would be of help.

Vehicle Parts &... | Answered on Jul 10, 2020

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