B1981 Engine Error Code

When you check engine light came on code B1981 the reason should be . However your vehicle's manufacturer may have a different definition for the B1981 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on your car models.

B1981 Code Symptoms

B1981 Code Reason

B1981 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

B1981 OBD-II Diagnostic Body (B) Trouble Code Description

B1981 Memory Off Switch Circuit Short to Battery so you have to check ODB-II Engine Error Code list.

B1981 Code Review :

The reason of B1981 OBD-II Engine Error Code is B1981 Memory Off Switch Circuit Short to Battery.

B1981 Code Dictionary Meaning:

b - Body Code - Problem is antilock brake system, electronic suspension and steering systems.
1 - MFG - Manufacturer Specific
9 - Transmission
8 - Crankshaft Position Sensor Circuit Performance
1 - PCM Stack Overrun