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2002 dodge gr caravan code p0135 and p0456 what do these mean

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135 is O2 Sensor Heater Circuit (bank 1 sensor1)

456 is Evaporative Emmission Control System
very small leak detected

Posted on Feb 24, 2010


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We have a 2005 dodge caravan SE, with a code of P0456, how do we go about repairing it?

Quick google search reveals this:

P0456 Code Chrysler_Dodge Town and Country_Caravan (1_1) - EricTheCarGuy - EricTheCarGuy- Stay Dirty!.htm

Oct 14, 2016 | Dodge Cars & Trucks

1 Answer

Repair codes: P1684 and P0135 What do these codes mean? Any help available?

P1684 means battery was disconnected in the last 50 starts. This could be true if you replaced the battery. If not then you need to check all the cables.
P0135 means an oxygen sensor needs replaced because it is having trouble reaching the correct temperature. There are heaters in them and they fail just like a lightbulb.

Sep 06, 2016 | 2001 Dodge Grand Caravan

1 Answer

I just replaced the upstream oxygen sensor, (P0135) why am I now getting code P0134 (no activity)

Replace both sensors with mopar,some aftermarket sensors are not compatible

Oct 20, 2015 | 2002 Dodge Caravan

1 Answer

Caravan malfunction indicator light

typically means a faulty gas cap. Engine code P0456 can also mean their is a small leak in the EVAPVAPORATIVE hoses from tank to under hood.

Apr 24, 2014 | 2005 Dodge Caravan

1 Answer

I have a dodge grand caravan wit the code p0135. internal controlmodule memorie check sum error no clue as to what it means please help

Code 135 should be a problem with the heater circuit for O2 sensor bank one sensor one. The O2 sensors have a heater to make them work as soon as the engine is started. The problem could be the sensor or the heater circuit.

Feb 18, 2014 | 2002 Dodge Grand Caravan

2 Answers

I have a 2004 Dodge Grand Caravan with a 3.8 and recently replaced the upstream O2 sensor and now get a p0135 engine code. What is the problem? I used a Bosch sensor. I was able to clear out the code but...

rule of thumb on any vehicle. always use the factory sensors for anything. they just are made for your vehicles computer. them online and shop around for best price.

Aug 26, 2017 | 2002 Dodge Grand Caravan

2 Answers

Engine fault codes: P1684 P0135 P0456

Hi the p1684 means the battery has been disconnected within the last 50 starts, the P0135 is Oxygen O2 Sensor Heater Circuit Malfunction (Bank1, Sensor1), you may have notived an increase in fuel consumption. and the P0456 code means evaporated emissions system -small leak detected the causes could be either A small leak in any of the EVAP hoses or fuel tank hoses, a small leak in the purge valve or vent valve or the EVAP Canister may be leaking
Hope this helps

Mar 02, 2011 | 2002 Chrysler Town & Country

4 Answers

Fault codes

The P1684 code simply means that the battery has been disconneted within the last 50 starts.

Jun 11, 2009 | 1996 Dodge Caravan

2 Answers

2005 Dodge Grand Caravan codes P0456 and P0303. Engine light on. Changed Gas cap. Need to pass inspection. Please help with diagnosis.

p0456--emission control system leak(verysmall) leak, check all hoses to emission controls, cylinder 3 missfire detected. could be plugs, wires, or coil.this is code p0303,

Jun 04, 2009 | 2005 Dodge Grand Caravan

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