Fault code on my vw mk4 19497 implausible engine temp. message from inst panel p3041

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01800 - Light Switch (E1): Implausible Signal.

01800 - Ross-Tech Wiki

'implausible signal'. As usual all these things are controlled by the Body Control Module. Check all the connection on that new switch. If that checks out, you need an auto electrician with a PRO GRADE scan tool computer to see why the signal on the computer network is failing. A basic scan tool can't do this.

https://www.google.com/search?q=Volkswagen+fault+code+01800

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Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

17443 Nox signal implausible, 17441 Nox sensor Signal too low,
check the latest software version

is running on the engine ecu. the Nox sensor is located to the rear of the cat and has a control box
bolted to the underside of the floor (o/s seat area) under the black
plastic protector

there is a workshop recall for this fault, Humidity in the Nox sensor Giving an implausible signal

a new sensor is needed if the production date on its sticker is before week 41/04



P/N of new item - 03C907807 D

also a software update is required if the engine code is BLP

here is a list of the possible codes this fault can cause17443/P1035 - Sensor for Nox (G295): Signal Implausible Possible Symptoms . MIL on Possible Causes . Sensor for Nox (G295) faulty Possible Solutions

It is a manufacturers fault code, it means implausable signal from G212

In English that means replace EGR valve :o)

Pull the codes and follow that indication The codes and their respective definitions are below as requested.

P1412 - Secondary air system fault bank 1Drive cycle D:Signal implausible

P1415 - Secondary air system fault bank 2Drive cycle D:Signal implausible

2005 Mercedes Benz C 240 Sedan (203.061) V6-2.6L (112.912) Vehicle Level Engine, Cooling and Exhaust Engine Engine Oil Dip Stick - Dip Stick Tube Technical Service Bulletins All Technical Service Bulletins Engine - Oil Level Message General Information Engine - Oil Level Message General Information GENERAL INFORMATION ON OIL LEVEL MESSAGE IN INSTRUMENT CLUSTER
Topic Number LI01.45-P-047548 Version 1 Design Group 01.45 Oil Pan Date 08-06-2009 Validity Valid for engines: M111, M112, M113, M166, M266, M271, M272, M273, M275, M285, OM611, OM612, OM613, OM628, OM629, OM640, OM642, OM646, OM647, OM648, OM668 Reason for change Update model designation/Supercedes SI S-B-01.45/26a and S-B-18.00/36a
Reason for block
COMPLAINT:
The attachment to this document contains detailed information on procedures and possible remedies in the event of implausible display messages concerning the engine oil level in the Instrument Cluster (IC).
Specifically, it contains information on:
1. Notes on implausible display messages
2. Overview chart of the relevant switches
3. Supplemental notes on oil level measurement
CAUSE:
For causes of implausible display messages, please refer to the document in the attachment (observe correct language version).
REMEDY:
For procedures and remedies in the event of implausible display messages, please refer to the document in the attachment (observe correct language version).
Engine Oil

Capacity
With Oil Filter 7.9 qts (7.5 liters)

EOBD type: P3041 = VAG type 5-digit: 19497
Fault location: CAN data bus, instrumentation - implausible ECT (Engine Coolant Temperature sensor) signal
Probable cause: Wiring, matching resistor in ECM (Engine Control Module)

HI. The codes and their respective definitions are below as requested.

P1412 - Secondary air system fault bank 1Drive cycle D:Signal implausible

P1415 - Secondary air system fault bank 2Drive cycle D:Signal implausible

1. VW VAG type 5 digit fault code 19497 = EOBD type P3041 fault code:
Fault location = CAN data bus, instrumentation - implausible Engine Coolant Temperature (ECT) signal
Probable cause = Wiring, matching resistor in Engine Control Module (ECM)

2. VW VAG type 5 digit fault code 18032 = EOBD type P1624 fault code:
Fault location = Malfunction Indicator Lamp (MIL) - request signal active
Probable cause = Trouble code(s) stored in other system(s)

3. VW VAG type 5 digit fault code 01039:
Fault location = Coolant Temperature Sensor (G2)
Probable cause = Open or Short to Plus, Short to Ground - Intermittent

4. VW VAG type 5 digit fault code 01304:
Fault location = Radio
Probable cause = No Communication

5. EOBD type P0761 fault code:
Fault location = Shift Solenoid C
Probable cause = Performance or Stuck OFF

Hi, I have a 2001 polo 1.4 mpi it lackes power when you hit a hill it just dies, It has had new cat, fuel filter, fuel pump and throttle body, but is still the same it just dose not want to give me full rev's?