B1643 Trouble Code

View B1643 obd/2 error code description and symptoms. B1643 engine photo

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

B1643 Error Code Repair Process :

The rule of B1643 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of b1643 mirror passenger right circuit failure. Likewise, overriding the OBD B1643 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

B1643 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B1643

A common cause of code B1643 is the failure of B1643 Mirror Passenger Right Circuit Failure, but there are several other possible causes as well, such as ;

Exhaust tube
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Oil Control Valve (OCV) circuit is open or shorted

B1643 code for all cars

You can view according B1643 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B1643 Mitsubishi Pajero Iii

+B1643 Hillman Super Minx

+B1643 Invicta 3-litre

+B1643 Toyota Es

+B1643 Renault Latitude

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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