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Trouble code description: Memory module Wey VV7 PHEV I

Seat ~3360 words

U110017

Trouble code determination: Seat memory module supply voltage exceeds 16V

Trouble code trigger conditions: CAN communication is on, CAN communication related diagnostics is on, door module power supply voltage is greater than 16V.

Trouble code reset conditions: Seat memory module power supply voltage exceeds 9V and is less than 15V for 1 second

Diagnostic methods:

  1. Use a multimeter to check whether the battery voltage is too high.
  2. Use a multimeter to check whether the voltage on the seat memory power supply is too high.
  3. The diagnostic tool checks whether other modules have similar error codes related to excessive voltage.

U110116

Trouble code determination: Seat memory module supply voltage below 9V

Trouble code conditions: CAN communication is on, CAN communication-related diagnostics are on, door module supply voltage is less than 9 V

Trouble code reset conditions: Seat memory module power supply voltage exceeds 10V and less than 16V for 1 second

Diagnostic methods:

  1. Use a multimeter to check if the battery voltage is too low.
  2. Use a multimeter to check whether the power supply of the seat memory function is low.
  3. The diagnostic device checks whether other modules have similar undervoltage error codes.

U014687

Trouble code determination: Seat memory module does not receive network messages from GW

Conditions for fault code appearance: CAN communication is enabled, CAN communication related diagnostics is enabled; the seat memory module cannot receive network messages from GW.

Trouble code reset conditions: Seat memory module must receive network messages from GM at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the GW to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes related to the loss of communication with the GM.
  4. Check if the GM related functions are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition

U019887

Trouble code determination: Seat memory module does not receive network messages from DDCM

Trouble code conditions: CAN communication is enabled, CAN communication related diagnostics are enabled; the seat memory module cannot receive DDCM network messages.

Trouble code reset conditions: Seat memory module must receive at least 10 consecutive DDCM network messages

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the DDCM to check for codes related to the loss of the seat memory module node or the loss of communication with the module.
  3. Check the error codes of other control nodes in the network for error codes that are related to the DDCM communication loss.
  4. Verify that the DDCM-related features are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition

U020087

Trouble code determination: Seat memory module does not receive network messages from PDCM

Trouble code conditions: CAN communication is enabled, CAN communication related diagnostics are enabled; the seat memory module cannot receive PDCM network messages.

Trouble code reset conditions: Seat memory module must receive PDCM network messages at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the PDCM to check for codes related to the loss of the seat memory module node or loss of communication with the module.
  3. Check the error codes of other control nodes in the network for PDCM loss of connection error codes.
  4. Verify that the functions related to PDCM are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition

U100387

Trouble code determination: Seat memory module does not receive network messages from SCM

Trouble code conditions: CAN communication is enabled, CAN communication related diagnostics are enabled; seat memory module cannot receive network messages from SCM.

Trouble code reset conditions: Seat memory module must receive network messages from SCM at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the SCM to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes that are related to the SCM communication loss.
  4. Verify that the SCM-related functions are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U016387

Trouble code determination: Seat memory module does not receive network messages from HUT

Trouble code conditions: CAN communication is enabled, CAN communication-related diagnostics are enabled; seat memory module cannot receive network messages from HUT.

Trouble code reset conditions: Seat memory module must receive HUT network messages at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the HUT to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes related to the HUT loss.
  4. Check that the HUT-related functions are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U016487

Trouble code determination: Seat memory module does not receive network messages from AC-FCP

Conditions for fault code appearance: CAN communication is enabled, CAN communication related diagnostics is enabled; the seat memory module cannot accept AC-FCP network messages.

Trouble code reset conditions: the seat memory module must receive at least 10 consecutive AC-FCP network messages

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the AC-FCP to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes related to the loss of AC-FCP communication.
  4. Verify that the AC-FCP-related features are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U019887

Trouble code determination: Seat memory module does not receive network messages from T-BOX

Conditions for fault code appearance: CAN communication is enabled, CAN communication-related diagnostics are enabled; the seat memory module cannot receive network messages from the T-BOX.

Trouble code reset conditions: Seat memory module must receive network messages from T-BOX at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the T-BOX to check for codes related to the loss of the seat memory module node or loss of communication with this module.
  3. Check if the error codes of other control nodes in the network contain error codes related to the loss of T-BOX connection.
  4. Check if the T-BOX related functions are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U014287

Trouble code determination: Seat memory module does not receive network messages from CMS

Conditions for fault code appearance: CAN communication is enabled, CAN communication related diagnostics are enabled; the seat memory module cannot receive network messages from CMS.

Trouble code reset conditions: Seat memory module must receive network messages from CMS at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the CMS to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes related to the CMS connection loss.
  4. Check that the CMS-related features are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U014087

Trouble code determination: Seat memory module does not receive network messages from BCM

Trouble code conditions: CAN communication is on, CAN communication related diagnostics is on; seat memory module cannot receive network messages from BCM.

Trouble code reset conditions: Seat memory module must receive network messages from BCM at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the BCM to check for codes related to the loss of the seat memory module node or the loss of communication with this module.
  3. Check the error codes of other control nodes in the network for error codes that are related to the BCM communication loss.
  4. Verify that the BCM-related features are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U014187

Trouble code detection: Seat memory module does not receive network messages from trailer

Trouble code conditions: CAN communication is enabled, CAN-related diagnostics are enabled, seat memory module cannot receive network messages from trailer.

Trouble code reset conditions: Seat memory module must receive at least 10 consecutive network messages from Trailer

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the fault codes in the trailer to see if there are any codes related to a lost seat memory module node or loss of communication with the module.
  3. Check whether the fault codes of the other control units in the network contain fault codes related to loss of trailer communication.
  4. Check if the trailer-related functions are working.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition.

U100287

Trouble code determination: Seat memory module does not receive network messages from PEPS

Trouble code conditions: CAN communication is enabled, CAN-related diagnostics are enabled; seat memory module cannot receive network messages from PEPS.

Trouble code reset conditions: Seat memory module must receive network messages from PEPS at least 10 times in a row

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN communication channel of the seat memory module itself may be unstable. Try to clear this fault code with a diagnostic tool to see if you can.
  2. Read the PEPS error codes to see if there are any error codes related to a lost seat memory module node or loss of communication with the seat memory module.
  3. Check the error codes of other control hosts in the network for error codes that are related to loss of communication with PEPS.
  4. Verify that PEPS-related features are working correctly.
  5. Check the CAN cable for a short circuit/circuit break.
  6. Check whether the seat memory module connector is in normal condition

U001988

Determination of fault code: the bus entered the fault mode; after three automatic reboots, the bus could not return to normal, the bus communication is interrupted.

Trouble code conditions: CAN communication is enabled, CAN-related diagnostics are enabled, bus is not in sleep mode

Trouble code reset conditions: The bus network management system of the seat memory module software resets the "bus disconnect flag" and keeps it in the reset state for 100 milliseconds.

Diagnostic methods:

  1. Check for a malfunction of the seat memory function (this function requires a normal data bus communication).
  2. Check if the same fault codes are present in the network control unit nodes.
  3. Try to clear this error code with a diagnostic tool to see if you can.

U112087

Trouble code detection: Seat memory module is in Limphome mode defined for CAN network control

Conditions for triggering the fault code: CAN communication is enabled, CAN communication-related diagnostics are enabled, the bus is not in sleep mode, the door module CAN communication is in the Limphome mode defined in the network settings.

Trouble code reset conditions: The CAN door module communication is no longer in the Limphome mode defined by the network management system

Diagnostic methods:

  1. Check the seat memory module for other fault codes related to signal loss. Determine whether the CAN channel instability is possible at the door module itself. Try to clear this fault code with a diagnostic tool to see if it can be done.
  2. Read the fault codes in other network nodes to see if there are error codes related to the loss of the door module node or the communication with this module is interrupted.
  3. Verify that the network communication features are working correctly.

B2A0046

Trouble code detection: Seat memory EEPROM cannot be written

Conditions for error code appearance: One unsuccessful attempt to write data to the seat memory module EEPROM occurred

Error code reset conditions: data can be successfully written when writing to the EEPROM of the seat memory module

Diagnostic methods:

  1. Check whether the seat memory function is working.
  2. Try to clear the error code with 431.
  3. Can I use the 431 to change the configuration words of the seat memory module?
  4. Replace the new seat memory module.

B2A0211

Trouble code detection: no feedback from the Hall sensor of the vertical adjustment motor when the seat is vertically adjusted

Diagnostic methods:

  1. Check whether the seat can be adjusted vertically.
  2. When adjusting the seat vertically, check whether there is a high voltage (about 12 V) on the terminal controlling the seat memory module motor.
  3. When adjusting the seat vertically, check whether the feedback signal of the Hall sensor of the vertical motor is zero.
  4. Check that the wiring harness from the seat memory module to the seat motor is normally conductive.
  5. Seat memory module replacement.
  6. Replacement of the vertical adjustment motor.
  7. Replace the wiring harness connecting the seat memory module to the motor.

B2A0411

Trouble code determination: no Hall sensor pulse response of the height motor when adjusting the front seat height

Diagnostic methods:

  1. Check if the seat height is adjustable in front.
  2. When adjusting the height of the seat front, check whether there is a high voltage (about 12 V) on the seat memory module terminal that controls the electric motor.
  3. When adjusting the height of the seat back, check whether the feedback signal of the Hall sensor of the height adjustment motor is 0.
  4. Check that the wiring harness from the seat memory module to the front seat height motor is conducting normally.
  5. Seat memory module replacement.
  6. Replacement of the height adjustment motor.
  7. Replace the wiring harness connecting the seat memory module to the motor.

B2A0611

Trouble code detection: no Hall sensor pulse response of the rear height motor when adjusting the rear seat height

Diagnostic methods:

  1. Check whether the seat height can be adjusted from the rear.
  2. When adjusting the height of the seat back, check whether there is a high voltage (about 12 V) on the seat memory module terminal that controls the electric motor.
  3. When adjusting the height of the rear seat, check whether the feedback signal of the Hall sensor of the height adjustment motor is zero.
  4. Check that the wiring harness from the seat memory module to the rear seat height adjustment motor has normal conduction.
  5. Seat memory module replacement.
  6. Height adjustment motor after replacement.
  7. Replace the seat memory module wiring harness with the backrest motor.

B2A0811

Trouble code detection: no feedback from the Hall sensor of the backrest motor when adjusting the backrest

Diagnostic methods:

  1. Check whether the backrest can be adjusted.
  2. When adjusting the seat back, check if there is a high voltage (about 12 V) on the seat memory module terminal that controls the motor.
  3. When adjusting the backrest, measure whether the Hall sensor feedback signal of the backrest motor is 0.
  4. Check that the wiring harness from the seat memory module to the seat back motor is conducting normally.
  5. Seat memory module replacement.
  6. Replacement of the backrest adjustment motor.
  7. Replace the seat memory module wiring harness with the backrest motor.

B2A0E11

Fault code detection: output voltage < 1.2±0.2V, output on

Diagnostic methods:

  1. Check whether the seat adjustment function is working.
  2. Remove the fault codes and see if they can be removed.
  3. Measure the Hall output voltage provided by the seat memory module to ensure that it is less than 1.2 ± 0.2 V.
  4. For diagnostics, the seat memory module must be replaced.

B2A1014

Trouble code determination: motor running time > 800ms, pulses from the vertical adjustment motor galvanometer are not detected.

Diagnostic methods:

  1. Check whether the seat vertical adjustment function is working.
  2. Remove the fault codes and see if they can be removed.
  3. Measure the feedback signal of the Hall sensor at the longitudinal motor to determine the presence of voltage.
  4. Seat vertical adjustment motor replacement.
  5. For diagnostics, the seat memory module must be replaced.

B2A1214

Trouble code detection: Motor running time > 800 ms, pulses from galvanometric sensor of front height adjustment motor not detected

Diagnostic methods:

  1. Check whether the height adjustment function of the front seat is working correctly.
  2. Remove the fault codes and see if they can be removed.
  3. Measure the Hall sensor signal feedback at the height adjustment motor before starting the measurements - whether voltage is present.
  4. Seat height adjustment motor replacement.
  5. For diagnostics, the seat memory module must be replaced.

B2A1414

Trouble code determination: motor running time > 800 ms, pulses from galvanometer of height sensor not detected

Diagnostic methods:

  1. Check whether the rear seat height adjustment function works correctly.
  2. Remove the fault codes and see if they can be removed.
  3. Measure the Hall sensor signal feedback at the height adjustment motor to determine the presence of voltage.
  4. Seat height adjustment motor after replacement.
  5. For diagnostics, the seat memory module must be replaced.

B2A1614

Trouble code determination: motor running time > 800 ms, pulses from back motor Hall sensor not detected

Diagnostic methods:

  1. Check whether the backrest adjustment function is working.
  2. Remove the fault codes and see if they can be removed.
  3. Measure the feedback signal of the back motor Hall sensor for voltage.
  4. Seat back adjustment motor replacement.
  5. For diagnostics, the seat memory module must be replaced.

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