C1940 Mazda 121 Engine Fault Code

Check Solution For C1940 Mazda 121 OBD Code :

C1940 Mazda 121 engine code seems a kind of chassis problem, we try to show one by one the meaning and the solution.
Brief explanation of the C1940 Mazda 121 code and definition of C1940 Mazda 121 is the bottom side.

C1940 Mazda 121 Meaning :

c Chassis Code
Problem is controller area network wiring bus and modules.
1 MFG - Manufacturer Specific
9 Fuel And Air Metering (Injector Circuit Malfunctions Only)
4 BBV Sensor Circuit Low Voltage
0 Transmission Engaged At High Throttle Angle

MFG - Manufacturer Specific codes, which have a '1' as their second digit to indicate they are unique to a particular vehicle make or model. These special codes were deemed necessary by the vehicle manufacturers so they could provide additional diagnostic information beyond the basic list of generic OBD II codes for all kinds of faults, not just emissions-related faults.

How To Fix C1940 Mazda 121 ?

Regarding the C1940 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

C1940 Mazda 121 Code Description:

The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the C1940 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored. When you see C1940 Mazda 121 engine fault code on your engine code reader this description will help you.

C Codes List of all Chassis codes.

Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. Before you take a test drive after a repair, always erase the C Code(s) first. This will turn the check engine light off and then you will know if the check engine light returns, you've got further diagnostics to complete.

BE CAREFUL !
This engine code information is presented for information purposes only. This is not intended as repair advice and we are not responsible for any actions you take on any vehicle.

About Us | Contact | Privacy

Copyright © 2016 - EngineFaultCode.com
All rights reserved.
Sitemap

Valid CSS!