B0648 Trouble Code

View B0648 obd/2 error code description and symptoms. B0648 engine photo

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

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.

Difficulty Level (Easy)
Level
Repair Time (20 Min.)
Time
Cost Prediction : $ 40-75

B0648 Error Code Repair Process :

If your variable cam timing overretarded (bank #2) check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system B0648 and engine control unit are in charge of monitoring a bunch of different variable cam timing overretarded (bank #2), and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool B0648 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.

Common Causes of B0648

A common cause of code B0648 is the failure of Variable Cam Timing Overretarded (Bank #2), but there are several other possible causes as well, such as ;

B0648 code for all cars

You can view according B0648 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B0648 Renault Maxity +B0648 Volkswagen Passat B5 +B0648 Hsv Clubsport +B0648 Mercedes C 220 +B0648 Mercedes-benz W196

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