B1605 Trouble Code

View B1605 obd/2 error code description and symptoms.

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.

Circuit High Input codes like B1605 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

Difficulty Level (Easy)

Repair Time (45 Min.)

Cost Prediction : $ 35-120

B1605 Error Code Repair Process :

The scent may B1605 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such B1605, so if the inside of your car b1605 lamp anti-theft indicator circuit short to battery as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

B1605 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 B1605

A common cause of code B1605 is the failure of B1605 Lamp Anti-Theft Indicator Circuit Short To Battery, but there are several other possible causes as well, such as ;

• Exhaust tube
• Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
• Ignition misfiring
• Three way catalyst converter Bank 1

B1605 code for all cars

You can view according B1605 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B1605 Paramount 1.5-litre

+B1605 Subaru Mini Jumbo

+B1605 Alvis Tf21

+B1605 Mercedes Cl 500

+B1605 Wolseley Hornet

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

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