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U0621 Mercedes A 170 engine code seems a kind of network problem, we try to show one by one the meaning and the solution.
Brief explanation of the U0621 Mercedes A 170 code and definition of U0621 Mercedes A 170 is the bottom side.
| u |
Network Code Problem is climate control system, lighting, airbags, etc. |
| 0 | SAE - Generic |
| 6 | Vehicle Speed Control And Idle Control System |
| 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 U0621 Mercedes A 170 ?
Regarding the U0621 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. |
The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the U0621 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 U0621 Mercedes A 170 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.
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.
