B3981 Lexus Es OBD Code

OBD/2 B3981 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code B3981

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

B3981 Lexus Es Error Code Repair Process :

The scent may B3981 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 B3981, so if the inside of your car door handle switch circuit short to ground 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.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 90-120

Common Causes of Lexus Es B3981 OBD2 Code

A common cause of code B3981 is the failure of Door Handle Switch Circuit Short To Ground, but there are several other possible causes as well, such as ;

• Continuous oil flow to the VCT piston chamber
• Continuous oil flow to the VCT piston chamber
• Incorrect fuel filler cap used
• Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection

B3981 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.

B3981 code for other Lexus cars

You can view according B3981 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B3981 Lexus Daytona
• B3981 Lexus Flv
• B3981 Lexus Gs
• B3981 Lexus Gx
• B3981 Lexus Is
• B3981 Lexus Is200
• B3981 Lexus Is220
• B3981 Lexus Is250
• B3981 Lexus Is300
• B3981 Lexus Lf
• B3981 Lexus Ls
• B3981 Lexus Ls 300
• B3981 Lexus Ls 350
• B3981 Lexus Lx
• B3981 Lexus Minority Report
• B3981 Lexus Rx
• B3981 Lexus Rx 300
• B3981 Lexus Rx400h
• B3981 Lexus Rx450h
• B3981 Lexus Sc

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

About Us | Contact | Privacy

Copyright 2017 © All rights reserved