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U1806 Engine Code Repair

Meaning of U1806 engine trouble code is a kind of network trouble code and when your car's 'U1806 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

U1806 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting

If one of these reasons for U1806 code is occuring now you should check U1806 repair processes.
Now don't ask yourself; What should you do with U1806 code ?
The solution is here :

U1806 Possible Solution:

U1806 Engine

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

U1806 Code Meaning :

U
OBD-II Diagnostic Network (U) Trouble Code For Engine

1
Fuel And Air Metering

8
Fuel Rail Pressure Sensor Circuit Malfunction

0
Crankshaft Position Sensor A Circuit Malfunction

6
Crankshaft Position Sensor B Circuit Malfunction

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

U1806 OBD-II Diagnostic Network (U) Trouble Code Description

U1806 engine trouble code is about Crankshaft Position Sensor B Circuit Malfunction.

Main reason For U1806 Code

The reason of U1806 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

U1806 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.