Search engine trouble codes.
Example: P0120
U3721 Ac 5 engine code seems a kind of network problem, we try to show one by one the meaning and the solution.
Brief explanation of the U3721 Ac 5 code and definition of U3721 Ac 5 is the bottom side.
| u |
Network Code Problem is climate control system, lighting, airbags, etc. |
| 3 | SAE - Generic |
| 7 | Auxiliary Emission Controls |
| 2 | Air Conditioning (A/C) Clutch Feedback Circuit High Voltage |
| 1 | TFP Valve Position Switch-Drive Without Drive Ratio |
SAE - Generic codes, which have a '0' as their second digit to indicate they are common to all makes and models of vehicles. These are the codes that are required for basic emissions fault diagnosis.
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How To Fix U3721 Ac 5 ?
Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above. |
Deactivation of cylinders is achieved by releasing a synchroniser pin that normally interlocks the cam follower and rocker arms. U3721 code resolves the synchroniser pin is released using hydraulic pressure which is controlled by a dedicated solenoid. When you see U3721 Ac 5 engine fault code on your engine code reader this description will help you.
| U Codes | List of all Network 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 U 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.
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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.
