Question about 1999 Dodge Intrepid

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Does disconnecting the battery wipe out the diagnostic codes

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No, disconnecting the battery will not erase the trouble codes. in fact it will add a new code indicating the battery was disconnected

Posted on Jun 01, 2014

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I have a 1996 dodge intrepid with a diagnostic code 1255. Could someone please tell me what that code means?

If you had two blinking CEL codes, a 12 (pause) and a 55, the code 12 means the battery has been disconnected within the previous 50 starts. The code 55 indicates the end of stored codes. Therefore, you have no saved trouble codes (disconnecting the battery deletes saved trouble codes).

Jan 08, 2017 | 1996 Dodge Intrepid

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What do the codes P1684 and P0700 mean?

Hi Rich Stuck,P0700 means Transmission Control System (MIL Request),P1684 means Battery Disconnected within last 50 starts.More read Diagnostic Trouble Code Table ,hope it can help you.

Dec 08, 2012 | 2002 Chrysler PT Cruiser

1 Answer

Ford ranger airbag code 12

Code 12
Lost Battery Feed 9 (Dead battery or battery disconnected) The Airbag diagnostic module must be reset.

Sep 06, 2012 | Ford Cars & Trucks

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How do i get my check engine light to go off

Only 2 ways to make the light go out.
1) You can disconnect the negative battery cable for 10 minutes. This will wipe from memory fault codes stored on your car's ECM (computer).

2) Take the car to a shop with a OBDII reader and have a diagnostic test done. After making appropriate repairs the light will go out.

Dec 06, 2011 | 1994 Nissan Maxima

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My 86 toyota 4runner don't have a diagnostic plug

Please check the locations indicated below and follow procedures to extract the code. Send us the code for repair advice or replay with any questions.

DIAGNOSTIC CODESDiagnosis codes are held in memory and may be displayed by grounding the proper terminals at the diagnostic connector or check connector. The system should be interrogated for stored codes before any disconnection of the battery cables; once disconnected, the stored codes will be lost. Certain conditions must be met before the codes will be transmitted from the ECU. The initial conditions are:

Engine at normal operating temperature Battery voltage 11 volts or above Throttle fully closed (IDL points engaged) Transmission in N All accessories and electrical loads OFF
If any of the initial conditions are not met, the ECU will note a problem and display a switch condition code when the diagnostic circuit is grounded.
Diagnostic Connector Locations
See Figure 1
On all equipped vehicles the check connector (near the ignition coil) or diagnostic connector are located under the hood in the engine area on the shock tower (passenger side) or near the junction or relay block (driver's side). A small plastic cap covers the check connector terminals and hinged plastic cap covers the diagnostic connector. Each terminal is mark inside the diagnostic cap cover for proper identification.


Fig. Fig. 1: Check connector (lower view) and diagnostic connector (upper view)
Reading Stored Codes

  1. Check that the initial conditions are met.
  2. Turn the ignition switch ON but do not start the engine.
  3. At the diagnostic connector or check connector, use a jumper wire to connect terminals T and E 1 .
  4. Observe the CHECK ENGINE warning lamp on the dashboard; read the code(s) based on the number and rate of flashes.
  5. If the system is operating normally, with no codes stored, the warning lamp will flash on/off in a constant, unchanging pattern. This is the System Normal signal; the ECU is acknowledging the request for codes but has nothing to report.
  6. If malfunction codes are stored, the light will blink every 1 / 2 -second. The first number of blinks will indicate the first digit of a 2-digit code. After a 1 1 / 2 second pause, the second digit will be transmitted. If there is more than one code stored, they will be separated by a 2 1 / 2 -second pause. After all stored codes have been transmitted, the cycle will begin again after a 4 1 / 2 second pause. The codes will continuously transmit until the jumper wire is disconnected. Even when transmission has stopped, the codes remain in memory until the memory is cleared.

If more than one code is stored, the codes will be transmitted in numerical order from lowest to highest. The order of the codes does not indicate the order of fault occurrence.
  1. Record the codes as they are received.
  2. Disconnect the diagnostic jumper; switch the ignition OFF .

Clearing Stored Codes

Stored codes will remain in memory until cleared. The correct method of clearing codes is to turn the ignition switch OFF , then remove the EFI 15A fuse for at least 30 seconds. The time required will be longer in cold weather.
Disconnecting the negative battery cable will also clear the memory but is not recommended due to other on-board memories being cleared as well. Once the system power is restored, re-check for stored codes. Only the System Normal indication should be present. If any other code is stored, the clearing procedure must be repeated or the old code will be stored with any new ones.
After repairs, it is recommended to clear the memory before test driving the vehicle. Upon returning from the drive, interrogate the memory; if the original code is again present, the repair was unsuccessful.

Oct 07, 2011 | Cars & Trucks

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My 03 g35 infiniti's engine was running very rough and infiniti mechanic is telling me that it's the alternator??? it's going to cost $850 for the repair.

You are right to have question marks. Just put a voltmeter across the battery terminals and if you can see 14.5 volts when the car is running then your alternator is more than likely OK. Take the car to Autozone and have the codes lifted from the PCM diagnostics. Running rough can have a variety of sources and in my book the alternator would not be one of them. It could be that a good clean out of your throttle body interior is all that is needed. Just disconnect the air ducting between air cleaner and throttle throat and using WD40 along with a cloth, wipe out any oily dirt on and behind the throttle plate. Re-assemble and check all vacuum lines to the inlet manifold to avoid leaks. If you still have problems the diagnostic error codes will help pinpoint the area to look at.

Oct 11, 2010 | 2004 Infiniti G35 Sport Coupe

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How do i reset the CEL on a 2003 Nissan Sentra, 2.8l...dealership wants to run a diagnostic $$$$$

Disconnecting the battery might reset the check engine light on your car. However, keep in mind the following:

- not all cars will clear the code after disconnecting the battery
- some problems, if not repaired in time may cause a serious damage and more costly repair.
- the radio, if code-protected, may be locked after disconnecting the battery
- the "check engine" light will come back anyway if the problem still exists.

But by all means try disconnecting the battery (for at least 1 minute) first.



Aug 20, 2010 | 2003 Nissan Sentra

2 Answers

How do i clear the "service engine soon"

Disconnect the battery for a minuit and turn on the light's to power down any electrical power. Reconnect the battery and that should clear the "servie engine light soon",but if there are any DTC codes, the "Service engine light" will come back on.
On board diagnostic (OBD) was designed on vehicles equipped with electronic fuel injection so you can generally retrieve the codes yourself. No need buying a scanner or running to any parts stores to check the Engine Light. This system is called obd1 and applies to most vehicles made before 1995 for domestics and 1993 on imports.

For GM domestic vehicles made before 1995, the diagnostic connector is located under the dash panel by the driver side. To get the check engine codes to flash in your dash panel, use a jumper wire or a paper clip and connect terminals A and B of the diagnostic connector. Turn your ignition key on with engine off and the codes should start to blink. All codes should start with code 12 which is one long flash followed by 2 short flashes. This code 12 means the diagnostic system is normal and will repeat itself continuously if there are no trouble codes. Otherwise, code 12 will flash 3 times before flashing the fault codes.

the codes can be erased or cleared by disconnecting the battery negative terminal for 1 minute and reconnect. Just make sure to check your service manual in case you have electronic equipment such as radio or clock that needs reprogramming in which battery disconnection is not recommended. Finally after performing repairs on the culprit code, always go for a road test to confirm if the problem is fixed.

Good luck and hope this help, here is a link to the DTC codes.

May 08, 2009 | 1989 GMC Sierra

1 Answer

Engine code 95 jeep grand cherokee lerado

12 is a battery disconnect within the last 50 start cycles and 55 means the end of the diagnostic cycle.  Basically the computer found nothing wrong. The 12 code may seem incorrect if you haven't disconnected the battery recently, but from my experience the 12 code shows up almost all the time regardless.

Dec 16, 2008 | 1995 Jeep Grand Cherokee

2 Answers

I have a diagnostic code of p0700 and p1684 coming up for my 2002 dodge neon...anyone know what that means??

Hey, Code 0700-Transmission Control System (Malfunction Indicator Light Request)
Code 1684 -Battery disconnected during last 50 starts

Nov 30, 2008 | 2003 Dodge Neon

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