P0601 BMW - ECM Self Check Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P0601 BMW Possible Causes

  • Faulty Engine control Module (ECM)
  • Engine control Module(ECM) harness is open or shorted
  • Engine control Module (ECM) cicuit poor electricl connection
  • Low battery voltage

First diagnose P0601 BMW code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P0601 BMW code

    Labor: 1.0

    The cost of diagnosing the P0601 BMW code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the P0601 BMW code detected?

The MIL will turn off on its own after four consecutive ignition cycle in which the diagnostic runs faultlessly.

P0601 BMW Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0601 Bmw Description

The nerve center of the fuel injection system is the engine control module (ECM). The ECM constantly supervises the information from various sensors, and regulates the systems that start after vehicle performance. The ECM is also empowered to control all the diagnostic functions of the system. It can detect operational flaws and caution the driver through the Malfunction Indicator Lamp (MIL) It also records and stores a Diagnostic Trouble Code (DTC) which detects the likely problem- making parts to help the technician while repairing.

In order to house the program information and the calibrations required for engine, trans-axle diagnostics operation an electrically erasable programmable read only memory (EEPROM) is used. For detecting errors in the software the ECM uses a specially devised value known as the checksum.

The checksum (self explanatory) is a value that is the sum total of all the numbers in the software added together. If the values recorded by the ECM and the checksum do not match then a checksum error is highlighted.

OBDII Code P0601 Bmw - ECM Self Check Fault - AutoCodes.com

P0601 BMW More Information

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