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Trouble code p1670 - 1999 Honda Civic

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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

Electronic Feedback Signal Not Detected

see list here. (vast)

that will take a real FSM to find it. ever heard of FSM
or log in to 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.

Posted on Jan 01, 2014


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Posted on Jan 02, 2017


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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.

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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

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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

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.

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I have an 1999 ford f350 7.3 powerstroke. I'm having white smoke coming out of the exhaust, I had trouble shot the vehicle the codes are DTC 04 p0562, DTC 03 p1670, DTC 02 p0603 and DTC 01 p0344. I...

P0344 = cam position sensor error
P0603 = Internal control module keep alive memory error.
P1670 = communication error between PCM and IDM
P0562 = system voltage low

My guess is you probably have some wiring issues but it's hard to tell exactly where.

May 16, 2011 | 1999 Ford F350 Regular Cab

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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

Sep 16, 2009 | 1995 Oldsmobile Eighty Eight

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2002 Buick LeSabre ECM DTC codes

P14xx and P15xx Diagnostic Trouble Codes?????????? You say has no DTC'S ???? What ?????

006 O2 Sensor Signal Analysis
What are the fuel trims at ? add fuel ,taking it away . Are the O2 sensors switching ?
What does scan data show the mass air flow sensor doing ?
010 Mass Air Flow Signal Analysis

006 Fuel Pump Current Testing Fuel pressure is AOK ??? fuel flow ?

035 Emission Tests Lean Fuel Condition

002 Fuel System Tests Start Here
DTC P1404
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DTC P1635
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DTC P1650
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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

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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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