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Home / DTC / U1219 — Electrically controlled parking brake automatic trigger fault: Data invalid

U1219 — Electrically controlled parking brake automatic trigger fault: Data invalid

Detailed page for trouble code U1219.

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23,694specific
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Code

U1219

CITROEN U — Network/User

Electrically controlled parking brake automatic trigger fault: Data invalid

Brand: CITROEN
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Intermittent or failed CAN/LIN communication between EPB module and other control modules
  • Corroded, loose or damaged connectors/wiring to EPB or gateway module
  • Low battery voltage or poor ground affecting module operation
  • Faulty EPB control module or actuator (internal electronics)
  • Software/firmware mismatch or required reprogramming
  • Other module sending corrupted/invalid messages (sensor or control module fault)

Symptoms

  • EPB automatic engage/disengage not working or disabled
  • Warning lamp or message for parking brake / EPB on dash
  • Loss of related functions (hill hold, auto park) or limited vehicle modes
  • Intermittent operation of parking brake actuator
  • Other communication-related warnings (ABS/ESP errors) may appear

What to check

  • Read all U and B/C/P codes with a full-capability diagnostic tool and capture freeze-frame data
  • Check battery voltage (resting and cranking) and charging system health
  • Inspect fuses and relays related to EPB, gateway and body control modules
  • Visually inspect wiring harnesses, connectors and grounds at EPB module and central gateway
  • Verify presence of related CAN/LIN modules and confirm no multiple U-codes indicating bus failure
  • Attempt to command EPB functions with diagnostic tool and observe responses

Signal parameters

  • CAN bus message ID that carries EPB automatic trigger command
  • Data validity flag / status byte (boolean or specific bit)
  • Sequence/timestamp counter (message freshness)
  • Checksum or CRC status (if used by higher-layer protocol)
  • CAN High / CAN Low idle voltages (~2.5 V) and differential waveform
  • Bus error counters (Tx/Rx error frames) reported by modules

Diagnostic algorithm

  1. Safety first: park vehicle on level surface, chock wheels, switch ignition off before connector checks.
  2. Connect a full-capability diagnostic tool. Record U1219 plus any other related codes and freeze-frame data. Note conditions when code set.
  3. Clear codes, then attempt to reproduce the fault by exercising EPB auto functions and rechecking codes.
  4. Check vehicle battery resting voltage and under-load voltage. Recharge or replace battery if low; ensure charging system is healthy.
  5. Inspect fuses/relays supplying the EPB and gateway modules; replace if faulty.
  6. Visually inspect and lightly tug connectors and wiring at the EPB module, gateway/body control module, and relevant ground points. Repair corroded or damaged contacts.
  7. Use a multimeter/oscilloscope to verify CAN High/Low voltages and signal integrity at the EPB module connector. Look for missing messages, excessive noise or shorts.
  8. If CAN/LIN faults present, isolate by disconnecting segments per manufacturer guidance and re-check. Repair wiring or connectors found defective.
  9. Use diagnostic tool to read raw CAN messages or module data parameters (data validity flag, sequence counters, actuator feedback). Identify if messages are malformed or missing.
  10. If communication is good and wiring/grounds are verified, check for available software updates or reprogram the EPB/gateway modules as per manufacturer procedures.
  11. If a module still reports invalid data after wiring and software verification, consider replacing the EPB control module or actuator assembly — only after confirming communications and power.
  12. After repairs, clear codes and perform a full function test of EPB automatic trigger and related systems. Road test if required and re-scan for codes.

Likely causes

  • CAN bus wiring fault (short to battery/ground or high resistance)
  • Connector corrosion or poor pin contact at EPB or gateway
  • EPB module internal fault (memory, processor, input stage)
  • Battery/charging system undervoltage during data transmission
  • Missing/incorrect software calibration after module replacement or update

Fault status

⚠️ Status
Invalid data received for EPB automatic trigger — communication or data integrity fault.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

U0100 U0121 U0140 U0415 U0416
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Code

U1219

DS U — Network/User

Electrically controlled parking brake automatic trigger fault: Data invalid

Brand: DS
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Intermittent or failed CAN/LIN communication between EPB module and other control modules
  • Corroded, loose or damaged connectors/wiring to EPB or gateway module
  • Low battery voltage or poor ground affecting module operation
  • Faulty EPB control module or actuator (internal electronics)
  • Software/firmware mismatch or required reprogramming
  • Other module sending corrupted/invalid messages (sensor or control module fault)

Symptoms

  • EPB automatic engage/disengage not working or disabled
  • Warning lamp or message for parking brake / EPB on dash
  • Loss of related functions (hill hold, auto park) or limited vehicle modes
  • Intermittent operation of parking brake actuator
  • Other communication-related warnings (ABS/ESP errors) may appear

What to check

  • Read all U and B/C/P codes with a full-capability diagnostic tool and capture freeze-frame data
  • Check battery voltage (resting and cranking) and charging system health
  • Inspect fuses and relays related to EPB, gateway and body control modules
  • Visually inspect wiring harnesses, connectors and grounds at EPB module and central gateway
  • Verify presence of related CAN/LIN modules and confirm no multiple U-codes indicating bus failure
  • Attempt to command EPB functions with diagnostic tool and observe responses

Signal parameters

  • CAN bus message ID that carries EPB automatic trigger command
  • Data validity flag / status byte (boolean or specific bit)
  • Sequence/timestamp counter (message freshness)
  • Checksum or CRC status (if used by higher-layer protocol)
  • CAN High / CAN Low idle voltages (~2.5 V) and differential waveform
  • Bus error counters (Tx/Rx error frames) reported by modules

Diagnostic algorithm

  1. Safety first: park vehicle on level surface, chock wheels, switch ignition off before connector checks.
  2. Connect a full-capability diagnostic tool. Record U1219 plus any other related codes and freeze-frame data. Note conditions when code set.
  3. Clear codes, then attempt to reproduce the fault by exercising EPB auto functions and rechecking codes.
  4. Check vehicle battery resting voltage and under-load voltage. Recharge or replace battery if low; ensure charging system is healthy.
  5. Inspect fuses/relays supplying the EPB and gateway modules; replace if faulty.
  6. Visually inspect and lightly tug connectors and wiring at the EPB module, gateway/body control module, and relevant ground points. Repair corroded or damaged contacts.
  7. Use a multimeter/oscilloscope to verify CAN High/Low voltages and signal integrity at the EPB module connector. Look for missing messages, excessive noise or shorts.
  8. If CAN/LIN faults present, isolate by disconnecting segments per manufacturer guidance and re-check. Repair wiring or connectors found defective.
  9. Use diagnostic tool to read raw CAN messages or module data parameters (data validity flag, sequence counters, actuator feedback). Identify if messages are malformed or missing.
  10. If communication is good and wiring/grounds are verified, check for available software updates or reprogram the EPB/gateway modules as per manufacturer procedures.
  11. If a module still reports invalid data after wiring and software verification, consider replacing the EPB control module or actuator assembly — only after confirming communications and power.
  12. After repairs, clear codes and perform a full function test of EPB automatic trigger and related systems. Road test if required and re-scan for codes.

Likely causes

  • CAN bus wiring fault (short to battery/ground or high resistance)
  • Connector corrosion or poor pin contact at EPB or gateway
  • EPB module internal fault (memory, processor, input stage)
  • Battery/charging system undervoltage during data transmission
  • Missing/incorrect software calibration after module replacement or update

Fault status

⚠️ Status
Invalid data received for EPB automatic trigger — communication or data integrity fault.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

U0100 U0121 U0140 U0415 U0416
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

U1219

Other U — Network/User

SCP (J1850) Invalid or Missing Data for External Lamps

Brand: Other
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Intermittent or failed CAN/LIN communication between EPB module and other control modules
  • Corroded, loose or damaged connectors/wiring to EPB or gateway module
  • Low battery voltage or poor ground affecting module operation
  • Faulty EPB control module or actuator (internal electronics)
  • Software/firmware mismatch or required reprogramming
  • Other module sending corrupted/invalid messages (sensor or control module fault)

Symptoms

  • EPB automatic engage/disengage not working or disabled
  • Warning lamp or message for parking brake / EPB on dash
  • Loss of related functions (hill hold, auto park) or limited vehicle modes
  • Intermittent operation of parking brake actuator
  • Other communication-related warnings (ABS/ESP errors) may appear

What to check

  • Read all U and B/C/P codes with a full-capability diagnostic tool and capture freeze-frame data
  • Check battery voltage (resting and cranking) and charging system health
  • Inspect fuses and relays related to EPB, gateway and body control modules
  • Visually inspect wiring harnesses, connectors and grounds at EPB module and central gateway
  • Verify presence of related CAN/LIN modules and confirm no multiple U-codes indicating bus failure
  • Attempt to command EPB functions with diagnostic tool and observe responses

Signal parameters

  • CAN bus message ID that carries EPB automatic trigger command
  • Data validity flag / status byte (boolean or specific bit)
  • Sequence/timestamp counter (message freshness)
  • Checksum or CRC status (if used by higher-layer protocol)
  • CAN High / CAN Low idle voltages (~2.5 V) and differential waveform
  • Bus error counters (Tx/Rx error frames) reported by modules

Diagnostic algorithm

  1. Safety first: park vehicle on level surface, chock wheels, switch ignition off before connector checks.
  2. Connect a full-capability diagnostic tool. Record U1219 plus any other related codes and freeze-frame data. Note conditions when code set.
  3. Clear codes, then attempt to reproduce the fault by exercising EPB auto functions and rechecking codes.
  4. Check vehicle battery resting voltage and under-load voltage. Recharge or replace battery if low; ensure charging system is healthy.
  5. Inspect fuses/relays supplying the EPB and gateway modules; replace if faulty.
  6. Visually inspect and lightly tug connectors and wiring at the EPB module, gateway/body control module, and relevant ground points. Repair corroded or damaged contacts.
  7. Use a multimeter/oscilloscope to verify CAN High/Low voltages and signal integrity at the EPB module connector. Look for missing messages, excessive noise or shorts.
  8. If CAN/LIN faults present, isolate by disconnecting segments per manufacturer guidance and re-check. Repair wiring or connectors found defective.
  9. Use diagnostic tool to read raw CAN messages or module data parameters (data validity flag, sequence counters, actuator feedback). Identify if messages are malformed or missing.
  10. If communication is good and wiring/grounds are verified, check for available software updates or reprogram the EPB/gateway modules as per manufacturer procedures.
  11. If a module still reports invalid data after wiring and software verification, consider replacing the EPB control module or actuator assembly — only after confirming communications and power.
  12. After repairs, clear codes and perform a full function test of EPB automatic trigger and related systems. Road test if required and re-scan for codes.

Likely causes

  • CAN bus wiring fault (short to battery/ground or high resistance)
  • Connector corrosion or poor pin contact at EPB or gateway
  • EPB module internal fault (memory, processor, input stage)
  • Battery/charging system undervoltage during data transmission
  • Missing/incorrect software calibration after module replacement or update

Fault status

⚠️ Status
Invalid data received for EPB automatic trigger — communication or data integrity fault.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

U0100 U0121 U0140 U0415 U0416
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Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

U1219

PEUGEOT U — Network/User

Electrically controlled parking brake automatic trigger fault: Data invalid

Brand: PEUGEOT
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Intermittent or failed CAN/LIN communication between EPB module and other control modules
  • Corroded, loose or damaged connectors/wiring to EPB or gateway module
  • Low battery voltage or poor ground affecting module operation
  • Faulty EPB control module or actuator (internal electronics)
  • Software/firmware mismatch or required reprogramming
  • Other module sending corrupted/invalid messages (sensor or control module fault)

Symptoms

  • EPB automatic engage/disengage not working or disabled
  • Warning lamp or message for parking brake / EPB on dash
  • Loss of related functions (hill hold, auto park) or limited vehicle modes
  • Intermittent operation of parking brake actuator
  • Other communication-related warnings (ABS/ESP errors) may appear

What to check

  • Read all U and B/C/P codes with a full-capability diagnostic tool and capture freeze-frame data
  • Check battery voltage (resting and cranking) and charging system health
  • Inspect fuses and relays related to EPB, gateway and body control modules
  • Visually inspect wiring harnesses, connectors and grounds at EPB module and central gateway
  • Verify presence of related CAN/LIN modules and confirm no multiple U-codes indicating bus failure
  • Attempt to command EPB functions with diagnostic tool and observe responses

Signal parameters

  • CAN bus message ID that carries EPB automatic trigger command
  • Data validity flag / status byte (boolean or specific bit)
  • Sequence/timestamp counter (message freshness)
  • Checksum or CRC status (if used by higher-layer protocol)
  • CAN High / CAN Low idle voltages (~2.5 V) and differential waveform
  • Bus error counters (Tx/Rx error frames) reported by modules

Diagnostic algorithm

  1. Safety first: park vehicle on level surface, chock wheels, switch ignition off before connector checks.
  2. Connect a full-capability diagnostic tool. Record U1219 plus any other related codes and freeze-frame data. Note conditions when code set.
  3. Clear codes, then attempt to reproduce the fault by exercising EPB auto functions and rechecking codes.
  4. Check vehicle battery resting voltage and under-load voltage. Recharge or replace battery if low; ensure charging system is healthy.
  5. Inspect fuses/relays supplying the EPB and gateway modules; replace if faulty.
  6. Visually inspect and lightly tug connectors and wiring at the EPB module, gateway/body control module, and relevant ground points. Repair corroded or damaged contacts.
  7. Use a multimeter/oscilloscope to verify CAN High/Low voltages and signal integrity at the EPB module connector. Look for missing messages, excessive noise or shorts.
  8. If CAN/LIN faults present, isolate by disconnecting segments per manufacturer guidance and re-check. Repair wiring or connectors found defective.
  9. Use diagnostic tool to read raw CAN messages or module data parameters (data validity flag, sequence counters, actuator feedback). Identify if messages are malformed or missing.
  10. If communication is good and wiring/grounds are verified, check for available software updates or reprogram the EPB/gateway modules as per manufacturer procedures.
  11. If a module still reports invalid data after wiring and software verification, consider replacing the EPB control module or actuator assembly — only after confirming communications and power.
  12. After repairs, clear codes and perform a full function test of EPB automatic trigger and related systems. Road test if required and re-scan for codes.

Likely causes

  • CAN bus wiring fault (short to battery/ground or high resistance)
  • Connector corrosion or poor pin contact at EPB or gateway
  • EPB module internal fault (memory, processor, input stage)
  • Battery/charging system undervoltage during data transmission
  • Missing/incorrect software calibration after module replacement or update

Fault status

⚠️ Status
Invalid data received for EPB automatic trigger — communication or data integrity fault.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

U0100 U0121 U0140 U0415 U0416
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

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