General Information

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The link between the Electro-Drive Drive Motor -V141- and the Hybrid Battery -A38- forms the Electric Drive Power and Control Electronics -JX1-. It contains the Voltage Converter -A19-, the Drive Motor Inverter -A37- and the Electrical Drive Control Module -J841-.

Fig 1: Electric Drive Power And Control Electronics -JX1-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The Drive Motor Inverter -A37- changes the 288 volt direct current of the Hybrid Battery -A38- to 288 volt alternating current when the vehicle is being driven by the Electro-Drive Drive Motor -V141-. The Voltage Converter -A19- changes the high voltage to low voltage to supply the 12V vehicle electrical system. The Electric Drive Power and Control Electronics -JX1- is water cooled and is installed in the engine compartment on the left front side.

The following high voltage cables are part of the Electric Drive Power and Control Electronics -JX1- :

Hybrid Battery High Voltage Cable, Positive Terminal -P1- to the Hybrid Battery Unit -AX1-. Refer to High Voltage Wiring Harness for High Voltage Battery -PX1-, REMOVING AND INSTALLING .
Hybrid Battery High Voltage Cable, Negative Terminal -P2- to the Hybrid Battery Unit -AX1-. Refer to High Voltage Wiring Harness for High Voltage Battery -PX1-, REMOVING AND INSTALLING
Drive Motor High Voltage Cable 1 -P4- to the Three-Phrase Current Drive -VX54-. Refer to DRIVE MOTOR HIGH VOLTAGE WIRING HARNESS -PX2-, REMOVING AND INSTALLING .
Drive Motor High Voltage Cable 2 -P5- to the Three-Phrase Current Drive -VX54-. Refer to DRIVE MOTOR HIGH VOLTAGE WIRING HARNESS -PX2-, REMOVING AND INSTALLING .
Drive Motor High Voltage Cable 3 -P6- to the Three-Phrase Current Drive -VX54-. Refer to DRIVE MOTOR HIGH VOLTAGE WIRING HARNESS -PX2-, REMOVING AND INSTALLING .
Electrical A/C Compressor High Voltage Cable - P3- to the Electrical A/C Compressor -V470-. Refer to ELECTRIC A/C COMPRESSOR HIGH VOLTAGE CABLE -P3-, REMOVING AND INSTALLING .

NOTE:

The fuse for the Electrical A/C Compressor -V470- is integrated in the Electric Drive Power and Control Electronics -JX1-.

It is not possible to replace the fuse. It is not possible to disassemble the Electric Drive Power and Control Electronics -JX1- any further. Replace the Electric Drive Power and Control Electronics -JX1- if it gets damaged.

If the Electric Drive Power and Control Electronics -JX1- is replaced, always complete the following adaptations in the order listed:

1. Adapt the Electric Drive Power and Control Electronics -JX1- to the immobilizer using the Vehicle Diagnostic Tester.

2. Code the Electric Drive Power and Control Electronics -JX1- using the Vehicle Diagnostic Tester.

3. Calibrate the Electro-Drive Drive Motor -V141- using the Vehicle Diagnostic Tester.

NOTE:

The Electro-Drive Drive Motor -V141- will automatically calibrate at the end of "Guided Fault Finding" once all Diagnostic Trouble Code (DTC) entries are erased.

The "calibration" must be performed each time the DTC memory for the Electric Drive Power and Control Electronics -JX1-, Battery Regulation Control Module -J840-, engine or transmission is "erased". Otherwise the vehicle will only start after the second try.