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Engine light came on.....code p1670 - S70 Volvo Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: Check Engine light P1670

I have a 2000 Volvo S70 as well with the same code. Do you ever have trouble starting your car? I did and that's why I took it to the dealer. Appartently it's the code for the ignition immobilizer system in your car (part of the security system). Specifically, a part call the antenna ring. The antenna ring is the outer portion of your ignition switch on the steering column - the part that lights up and has the following printed on it: 0 - I - II - III. This part is actually a sensor that transmits the code stored in the microchip inside of your key. When this part goes bad it fails to transmit the correct key code to the computer, and cuts the fuel to the engine.

The dealer wanted to charge me $550 for a new antenna ring, two new keys, and software to program the car's computer with the new key codes. I purchased the antenna ring online for $50 and did it myself in 15 minutes - so easy. They claim that you can't replace the antenna ring without new software - lie! You only need the software if you are replacing the keys.

Car is running great.

Posted on Mar 30, 2009

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2000 Volvo s70 got a code from my OBD tool witch is P1670 could that be why it doesn't get speed like pose to an it that apart or wat is it


P1670 is an Immobilizer fault code, the problem is related to the immobilizer antenna the connectors are defective or dirty or just loose.
There are 3 main parts to the immobilizer system. The ignition key, the antenna around the ignition lock, and the control module. The only thing that would need any sort of cleaning would be the electrical terminals that connects the antenna and control module.

Jun 24, 2016 | Volvo Cars & Trucks

1 Answer

My check engine light is on. it is pulling 4 codes P0302 P1670 P0174 P0171


code p 0302 is a misfire on no 2 cylinder
check that the plug lead is on properly, that the lead is operational
move the injector from 2 to another cylinder and see if the misfire follows the move
code p 0174 refers to system too lean bank 2===causes intake /exhaust leak---fuel pressure / pump---injector/s--AIR system--hose connection/s
code p 0171 refers to system too lean bank 1=== causes intake /exhaust leak---AIR system---MAF/VAF sensors---fuel pressure / pump---injector/s -- HO2S
You stated that you replaced the O2 sensor but that is different to the HO2S sensor , does a different job and controls the air/fuel mixture from the ECM
because it has banks 1 and 2 it is a v engine and you will have a HO2S in the exhaust manifold or before the cat converter for each exhaust
O2 sensors are after the cat converter and confirm the HO2S settings for the ECM
to put the lights out , use a scan tool to reset the ECM

Jan 15, 2016 | Cars & Trucks

1 Answer

What does the code P1670 on 2000 Volvo V70 mean?


A 1670 code points to the engine immobilized. In most newer cars the key contains a chip so if you try to get a copy at a locksmith the immobilizer will realize that the key has no chip and it will not stay running. You may have trouble starting the car if this problem persists. This one unfortunately is a dealer fix unless you are savvy with new ignition switches, airbag removal(if key is in column), and/or a little electronics backround. I am not sure if the immobilizer or ring is fused or not but good luck and I hope all goes well for you. No sarcasm intended. This is just one of those problems that adds to the fact that the days of backyard fixes are coming to an end. Not saying you can't correct the issue but sometimes jobs like this even require special model only tools. They sure have figured out how to make us keep coming back to them. I am pretty sure I got your code right and if I didn't, I am sorry, gave it my best shot

Oct 08, 2014 | 2000 Volvo V70

1 Answer

What is code p1670 and code p1671 mean


First code is for an immobilizer problem. Clean the contacts for the antenna ring around the ignition switch first. Second codes is for the Cam position sensor. Could be caused by the sensor or a sticky VVT valve.

Jun 04, 2014 | 2000 Volvo S70

1 Answer

Trouble code p1670


1999 civic?
post engine option in car. gas, I4, and displacement
lots of engines, used world wide.
before working on any car or engine, know what's there? first.
P1 means unique to honda, P1 means factory code, P0 means federal generic codes.
did you scan this , or AUTOZONED.?
only 1 code, i too have trouble finding it..... is it correct.?
tell the full story, who got it, and how. and is there any driving symptoms

P1670
Electronic Feedback Signal Not Detected

see list here. (vast)
http://honda-tech.com/showthread.php?t=1739993

that will take a real FSM to find it. ever heard of FSM
or log in to alldata.com and look up 1670s.

there is little info on 1670, googling and ignoring all non honda post.
you must stay on HONDAs only. to get facts. here.

Dec 31, 2013 | 1999 Honda Civic

1 Answer

Engine code P1670


DTC P1668 and P1670 indicates that a communication error has occurred between the PCM and the IDM.

Possible causes:

-- Open fuse

-- IDM relay

-- Open or shorted IDM enable circuit

-- Open/short in EF circuit

-- Open/short in FDCS circuit

-- IDM powering circuits

-- PCM

l Check for other codes.

l Key on, engine off.

Dec 08, 2011 | Ford F-250 Cars & Trucks

1 Answer

I have two codes on my 1995 oldsmobile eighty-Eight P1640 P1670 what do they mean.


P1640 Driver 1-Input High Voltage
P1670 Driver 4
have a look here for more codes and info......if this helps, would you leave feedback for me please....thanx
http://www.engine-light-help.com/oldsmobile-check-engine-light.html

Sep 16, 2009 | 1995 Oldsmobile Eighty Eight

1 Answer

Truck will not start


P1670 Electronic Feedback Signal Not Detected
P0344 Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor)
P0470 Exhaust Pressure Sensor Malfunction

Apr 10, 2009 | 1999 Ford F250 Regular Cab

2 Answers

Check Engine light P1670


I have a 2000 Volvo S70 as well with the same code. Do you ever have trouble starting your car? I did and that's why I took it to the dealer. Appartently it's the code for the ignition immobilizer system in your car (part of the security system). Specifically, a part call the antenna ring. The antenna ring is the outer portion of your ignition switch on the steering column - the part that lights up and has the following printed on it: 0 - I - II - III. This part is actually a sensor that transmits the code stored in the microchip inside of your key. When this part goes bad it fails to transmit the correct key code to the computer, and cuts the fuel to the engine.

The dealer wanted to charge me $550 for a new antenna ring, two new keys, and software to program the car's computer with the new key codes. I purchased the antenna ring online for $50 and did it myself in 15 minutes - so easy. They claim that you can't replace the antenna ring without new software - lie! You only need the software if you are replacing the keys.

Car is running great.

Feb 16, 2009 | 2000 Volvo S70

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