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Example: 0120

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The all list of engine trouble codes.

B1257 Engine Diagnostic Code

B1257 engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)

B1257 engine code provides below are generic codes that may not apply to all vehicles. Car manufacturer uses specific B1257 DTC code that are different from the codes shown below. Foreign vehicles may also use DTC codes different from the generic Engine Diagnostic codes.

Sample B1257 Engine

B1257 Diagnostic Trouble Code Meaning And Solution

0 1 2 57
Body Problem MFG - Manufacturer Specific Fuel And Air Metering (Injector Circuit Malfunctions Only) 57 Engine Fault Code

Starting letter 0 diagnostic code shows that there are problems in antilock brake system, electronic suspension and steering systems.
If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes so you have to check your engine diagnostic code tool. If your vehicle is an older model with a non-electronic Fuel And Air Metering (Injector Circuit Malfunctions Only), you can check the distributor cap to see whether the spark is getting from there to the coil and on to the spark plugs.

Don't forget ! If your B1257 engine code not resolved on and there are trouble codes in your computer, your vehicle will not pass an OBD 2 emissions test. The light must be off and there must be no codes in memory to pass an OBD 2 emissions test. In addition, all of the OBD II self-monitors that check for faults must have run and completed without finding any further problems to pass the test.

Cars with B1257 Error Code :