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Codes fail codes 42 and 55

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Code 42 (I couldnt find what that converted to in normal ODB-II codes) is the code for an open or shorted circuit in the fuel pump relay circuit.

Code 55 just means end of codes. Code 55 just tells you it has reached the end of the report, so basically the only engine code you have is 42.

Posted on Jan 02, 2009

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SOURCE: getting codes 12 43 42 42 55 96 caravan 3.3liter

55 is the ending of every code so that isnt a trouble code either

Posted on Feb 05, 2010

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Codes0441 0442 0455 0456


codes po441 po442 po455 po456. code po441 - EVAP system no flow during purge conditions.code po442 -EVAP system small leak detected conditions. code po455 - EVAP system large leak detected conditions.code po456 - EVAP system very small leak detected. possible causes loose damaged missing fuel cap.fuel tank sensor disconnected or failed. ORING on top fuel sending unit leaking.purge valve vapor line clogged disconnected or purge solenoid failed.vent solenoid not closing or has failed.

May 23, 2013 | 2002 Dodge Durango

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Code 12, 42,55 what do it mean


Hi there:
12 - Battery or computer recently disconnected
42 - Automatic shutdown relay circuit open or shorted (check fuel and pump system)
55 - End of codes

Hope this helps.

Apr 21, 2013 | 1996 Jeep Grand Cherokee

1 Answer

P0700 code p0455


Trouble Code: P0455

EVAP Large Leak Detected

Possible Causes:


EVAP purge solenoid is damaged or it has failed.Fuel tank cap is damaged, missing or the wrong part number.NVLD switch is damaged or it has failed.Trouble Code: P0700

Automatic Transmission Control System Malfunction

Possible Causes:


The presence of this code means the TCM detected a problem.TCM related Sensor has solenoid is damaged or has failed.This code is for information only - check for other TCM codes.TCM or PCM has failed.Now it's time to turn into Einstein and figure this out.Good luck.

Jan 14, 2013 | 2000 Dodge Grand Caravan

1 Answer

My 00 xterra had a code of po446


Trouble Code: P0446

EVAP Vent Control Solenoid Circuit Malfunction

Possible Causes:


Vent solenoid circuit open, shorted to ground or to power (B+).Vent control solenoid is damaged or has failed..PCM has failed.TSB 00-060 (7/00) contains information related to this code.Trouble Code: P0455

EVAP System Gross Leak (0.080") Detected

Possible Causes:


.EVAP control system pressure sensor is damaged or has failed.EVAP purge solenoid or canister vacuum line loose or off.EVAP purge solenoid is damaged or has failed.EVAP emission canister is dirty, restricted or full of water.EVAP canister vent control valve is damaged or has failed.Fuel tank cap loose, missing or it is the wrong part number.Fuel tank temperature sensor is damaged or has failed.Fuel tank vacuum relief valve is damaged or has failed.Large leak in the EVAP canister or in the fuel tank area.ORVR system is damaged or has a large leak in a component.Refueling control valve is damaged or has failed.Vacuum hose leaking between intake manifold and Purge valve.Here are the codes,take part back and get refund.

Dec 03, 2012 | Cars & Trucks

1 Answer

Engine codes PO 128, PO 440, PO 456 and PO 622


Trouble Code: P0128

Thermostat Rationality Test

Possible Causes:


Check the operation of the thermostat (it may be stuck open).ECT Sensor is contaminated, damaged or it has failed.Inspect for low coolant level or for an incorrect coolant mixture.Trouble Code: P0440

EVAP Purge System Fault

Possible Causes:


EVAP purge valve vacuum supply is leaking or clogged.EVAP purge valve is stuck closed.EVAP purge solenoid has failed.NVLD assembly (leak detection) is damaged or has failed.NVLD switch circuit is open or the NVLD switch has failed.Ground circuit is open.PCM has failed.Trouble Code: P0456

EVAP Small Leak (0.020") Detected

Possible Causes:


.EVAP fuel tank or canister vapor hoses leaking or damaged.EVAP system component leaking, fuel cap loose or missing.Leak detection pump damaged or leaking.Trouble Code: P0622

Generator Field Control Circuit Malfunction

Possible Causes:


Generator field control circuit is open or is shorted to ground.Generator field control circuit is shorted to system power (B+).Generator field ground circuit is open.Generator is damaged or PCM has failed.PCM has failed.Here are the codes and causes.

Nov 25, 2012 | 2002 Dodge Intrepid

1 Answer

Maifunction indicator light comeing on


Trouble Code: P0340

No Camshaft Position Sensor Circuit Failure

Possible Causes:


CMP Sensor connector is damaged, open or it is shorted.CMP Sensor signal circuit is open or shorted to ground or to battery voltage or 5v supply circuit.CMP Sensor 5v supply circuit is open or shorted to ground or to battery voltage.CMP Sensor ground circuit is open.CMP Sensor is damaged or has failed.CKP Sensor is damaged or has failed.PCM has failed.Trouble Code: P0700

Automatic Transmission Control System Malfunction

Possible Causes:


.The presence of this code means the TCM detected a problem.TCM related Sensor has solenoid is damaged or has failed.This code is for information only - check for other TCM codes.TCM or PCM has failed.Sorry but the PO620 is not listed.

Nov 05, 2012 | 2004 Jeep Grand Cherokee

1 Answer

2005 chrysler 300c trouble codes p0344, p0016 p0061c


Trouble Code: P0344

Camshaft Position Sensor Circuit Intermittent

Possible Causes:


.Wiring harness fault.5v supply circuit open or shorted to ground.Tone wheel/pulse ring is damaged or corroded.CMP Sensor has failed.CMP Sensor signal circuit is open, shorted to ground or battery. voltage or 5v supply.CMP Sensor ground circuit is open.PCM has failed.Trouble Code: P0016

Crankshaft/Camshaft Timing Misalignment

Possible Causes:


.Base engine problem (i.e., the camshaft timing is not correct).Intermittent condition.CKP or CMP Sensor signal is erratic (check with lab scope).Tone wheel or pulse wheel is damaged or contains debris.CKP or CMP Sensor, harness or connector has failed.PCM has failed.Trouble Code: P0061

Engine Temperature Control Level 2 RPM Performance

Possible Causes:


PCM need to be reprogrammed.PCM has failed.

Oct 27, 2012 | 2005 Chrysler 300

2 Answers

VW Passat Code P0748



Trouble Code: P0748

Pressure Control Solenoid Electrical
Possible Causes:


Pressure control solenoid circuit is shorting to ground Pressure control solenoid circuit is open Valve has failed TCM has failed ECM has failed

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2 Answers

What does the code p0442,p0456,p0700,p0645,p0481,p0340


CODE PO442 - EVAP SMALL LEAKED DETECTED. CODE PO456 - LEAK IN EVAP SYSTEM DETECTED. POSSIBLE CAUSES / VACUUM HOSE CONNECTIONS OR SWITCHES HAVE COME LOOSE OR MALFUNCTION / EVAP EMISSION SYSTEM HAS A LEAK / EVAP PURGE SOLENOID OPERATION HAS MALFUNCTION / NVLD SWITCH OPERATION HAS MALFUNCTION / CODE PO 700 - AUTOMATIC TRANSMISSION FAULT DETECTED .POSSIBLE CAUSE TRANSMISSION CONTROL MODULE RELATED SENSOR HAS SOLENOID IS DAMAGED OR HAS FAILED.TRANSMISSION CONTROL MODULE FAILED OR POWER CONTROL MODULE HAS FAILED.YOU TAKE VECHICLE TO DEALERSHIP THEY WILL TO SCAN TRANSMISSION. CODE PO645 - AC CLUTCH RELAY CIRCUIT MALFUNCTION . POSSIBLE CAUSE.INTERNALLY FUSED IGNITION SWITCH OUTPUT CIRCUIT IS FAULTY. AC RELAY CLUTCH CONTROL CIRCUIT IS OPEN OR IT IS SHORTED TO GROUND. AC RELAY CLUTCH POWER SUPPLY FUSED IGNITION CIRCUIT IS OPEN. AC RELAY IS DAMAGED OR IT HAS FAILED.PCM HAS FAILED. CODE PO481 - HIGH SPEED NUMBER 2 FAN RELAY CONTROL CIRCUIT. POSSIBLE CAUSE HI FAN RELAY POWER CIRCUIT IS OPEN FROM THE RELAY TO FUSED POWER.HI FAN CONTROL CIRCUIT IS OPEN OR SHORTED TO CHASIS GROUND. FAN RELAYS FAILED. PCM HAS FAILED. CODE PO340 - NO CAMSHAFT POSITION SENSOR CIRCUIT FAILURE. POSSIBLE CAUSE CMP SENSOR CONNECTOR IS DAMAGED OPEN OR IT IS SHORTED. CMP SENSOR SIGNAL CIRCUIT IS OPEN OR SHORTED TO GROUND OR TO BATTERY VOLTAGE OR 5 VOLT SUPPLY CIRCUIT. CMP SENSOR 5 VOLT SUPPLY CIRCUIT IS OPEN OR SHORTED TO GROND OR TO BATTERY VOLTAGE. CMP SENSOR GROUND CIRCUIT IS OPEN. CKP SENSOR IS DAMAGED OR HAS FAILED.PCM HAS FAILED. SOUND LIKE PROBLEM IS PCM GROUND WIRE BROKEN OR LOOSE OR PCM HAS FAILED.

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2 Answers

Fail safe engine fail


this can be caused by a few things. Diagnostic Trouble codes needed to diagnose. many auto part store will read codes for free, please post codes

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