VW/Audi P1640 Fault Code – Internal Control Module: EEPROM Error

Bosch EDC16U1

ECUs

Register to see pricing

Continue

The P1640 fault codee is a common problem for VAG vehicle built from 2003 to 2009. It's especially prevalent on vehicles with a 1.9TDI, 2.0TDI and the V10 TDI engine. This code described as "Internal Control Mudle", indicates an internal error with the EEPROM of the Bosch EDC16U1 ECU.

The EEPROM is a crucial part of the ECU where important data and configuration information are stored. An error in the EEPROM can lead to various problems with vehicle performance and functionality. This fault occurs most often in the following Volkswagen/Audi models:

• Audi A3 8P (2003 – 2012)
• Volkswagen Caddy III 2K/2C (2004 – 2020)
• Volkswagen Golf V 1K (2003 – 2009)
• Volkswagen Touran 1T1, 1T2 (2003 – 2010)
• Volkswagen Transporter T5 7H, 7E, 7J (2003 – 2015)

Symptoms of the P1640 fault Code

The P1640 fault code indicates an internal error in the EEPROM (Electrically Erasable Programmable Read-Only Memory) of the Bosch EDC16U1. On Volkswagen-Audi Group (VAG) vehicles, this error code can cause various symptoms that affect the performance and functionality of the vehicle. Here are the most common symptoms that indicate this specific fault code:

• The engine indicator light (MIL) is illuminated
• Difficulty starting and erratic engine performance
• Loss of power or engine goes into limp mode

Tip: If error code P1959, P2080, P1592, P1603, or P1640 occurs simultaneously, error code P1640 may be due to an error in the ECU software. In that case, check whether software updates are available for the ECU.

Extra tip: This error code can also be read on Volkswagens with 2.7 and 3.0 TDI engines, equipped with the EDC16CP34 ECU.

Advice for fixing the VAG P1640 fault code

The first step is to check for loose connections or visible damage on wiring and connectors. Then check if any updates or reprogramming are available for the ECU.

If the problem persists, it is advisable to have the Bosch EDC16U1 remanufactured.  ACTRONICS offers a cost-effective and sustainable solution.

Remanufactured parts are thoroughly tested and meet the highest quality requirements. Remanufacturing also contributes to a circular economy through the reuse of components. In case of doubt or complex problems, always contact ACTRONICS for professional advice and high-quality repairs.